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Graphene nano-sheets such as graphene oxide, chemically converted graphene and pristine graphene [1-8] improve the capacity utilization of the positive active material of the lead acid battery. At 0.2C, graphene oxide in positive active material produces the best capacity (41% increase over the control), and improves the high-rate performance due to the higher reactivity at the graphene/active material interface. The in-situ changes in the graphene structure and oxygen states [1-2] support these, as well as higher adsorptive surface area, better graphene/lead dioxide interfacial reaction, and finer & highly utilized lead dioxide phases. The multi-scale physio-chemical mechanisms improving capacity and cycle life is thus: Electrolyte/ionic permeation improvements results from increase in pre-formation porosity, and higher interfacial reactivity at gel zone which enhances active material reversibility. Our ion transfer model reveals the optimized redox reaction in the electro-active zone of graphene-enhanced active materials. This work shows the best enhancement in the capacity of lead-acid battery positive electrode till date.

Low cost, low defect and high-quality graphene have been produced in three simple exfoliation steps as a fully tested commercial concept. Low energy thermal arc-discharging expands the electrolytic graphite rod electrodes into hierarchical-like 3D graphene retaining the graphite structural order on a basal plane and chemical purity. Multi-size ball milling causes movement of the graphene materials in multi-shear directions, with optimized speed of the balls and lesser time. Micro-waving further separates the graphene sheets by “thermal expansion and release” mechanism utilizing thermally induced lattice vibrations. This also causes higher lattice order on basal plane improving directional and surface properties. The produced graphene (XRD 2theta = 26 degrees) has low defect (I(D)/I(G) between 0.05 and 0.2), retains chemical purity (between 0.56 and 2.4% change in oxygen content), and with comparatively optimized effective nano-sizes (ranging from 300nm to 35um). These properties make the graphene suitable for diverse applications, dispersibility in various solvents, conformability to flat semitransparent surfaces, and storable in concentrated slurries (>50 mg mL−1) or powder. Keywords: Low Defect; 2D Planar; Arc Discharge Graphene; PPC Sonication; 5 Sec Microwaving; Exfoliation; Electronics. References O.J. Dada, " In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Case. " ECS Trans., vol. 66, no. 14, pp. 19–30, Aug. 2015. O.J. Dada, “ In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Case.,” ECS Abstract., MA2015-01 (870), April 2015. O.J. Dada and D. Villaroman, " Superior Electronic and Dielectric Properties of Corrugated ElectrochemicallyReduced Graphene over Graphene Oxide Papers " Journal of the Electrochemical Society, vol 166 no.2, pp D1-D16, 2019. O.J. Dada, " Functional Cathodic and Anodic Transition of Graphene Oxide Paper in Lead Acid Battery System and Its Electrochemistry ". Materials Today: Proceedings”, vol. 3, no. 8, 2688-2697, 2016. O.J. Dada, " Interconnected Graphene Networks as Novel NanoComposite for Optimizing Lead Acid Cathode ". IEEE NANO 2015- Int. Conf. Nanotechnology, Rome, 2015. O.J. Dada, " Higher Capacity Utilization and Rate Performance of Lead Acid Battery Electrodes Using Graphene Additives ”. Journal of Energy Storage, vol. 23, pp579-589, Jun. 2019. O.J. Dada, " Effect of the Size and Conductivity of Tailored Graphene Electro-Catalysts, Lead Acid Battery Cathode as a Case ". IEEE NANO 2015- Int. Conf. Nanotechnology, Rome, Italy, 2015. O.J. Dada, " Wrinkled Graphene Oxide Synthesis by Electrolytic Arc Discharge of Graphite Rods and Slightly Modified Hummer’s Process ". Available at SSRN 3368351, 2019. O.J. Dada, " Highly Ordered Commercial Graphene Manufactured from 3 Simple Steps ". Available at SSRN 3335369, 2019. O.J. Dada, " Low Defect Planar Graphene Exfoliation by Sonication in Polypropylene Carbonate and 5 sec Microwaving ". Available at SSRN 3386581, 2019. O.J. Dada, " Utilization of Hard Carbon as a Substitute for Graphite As Efficient Lithium Battery Anode Material ". Available at SSRN 3368403, 2019. O.J. Dada, “ High Performance Lithium Battery Anodes from Non-Water based Graphene ”. Available at SSRN 3368433, 2019. O.J. Dada, “ Free Standing Porous Graphene and Reduced Graphene Papers Manufactured from Sedimentation of Arc Discharge of Graphite Rods ”. Available at SSRN 3481786, 2019. O.J. Dada, " Corrigendum to “Higher capacity utilization and rate performance of lead acid battery electrodes using graphene additives” . Journal of Energy Storage, vol. 23, pp579–589, Jun. 2019.

Free Standing Porous Graphene and Reduced Graphene Papers manufactured from Sedimentation of Arc Discharge of Graphite Rods. At SignEcoTech, novel and newer nano-carbons such as hard carbons, homogenized graphene, low defect highly crystalline graphene’s, and wrinkled graphene [1-14]. Here, Graphene Oxide papers have been synthesized previously by flow-directed assembly, where the pressure of air within the assembly supports graphene oxide sheets in their nano-crystalline colloidal solution being filtered on nano-porous filter paper. However in this research, we haven’t used any filter paper, or directed flow assembly, but sedimentation of the colloidal solution in ethyl alcohol in a dish. Then, the wrinkled the hierarchical GO sheets fall under gravity by sedimentation. Wrinkling in GO was enhanced by low defects, multi-layer clusters, and variegated + edge interaction amongst graphene clusters, as such the sedimented graphene papers were porous, intertwined and free standing. The composition of GO was confirmed by XPS, while the low defect level clearly marked by higher planar order and low ID/IG band. The wrinkled, multilayer clusters and carbonic surface properties of the graphene oxide sheets enhanced fast sedimentation, evaporation of the alcohol and formation of porous GO structure. The porous reduced\GO morphology is captured by optical microscope. Keywords: Wrinkled GO Papers, Reduced Graphene, Arc Discharge, Modified Hummers Method

Friction stir welding (FSW) is one of the fastest developing welding technologies being implemented in the transport industry today. Fracture surfaces of AA5083-H111 specimens, which were friction-stir-welded using different parameters, were studied with a scanning electron microscope. The changes in the microstructure of the weld, the location and type of defects that accompanied each stirring process determined the magnitude of reduction in strength and soundness of joints for flawed samples. The paths of crack propagation and modes of fast fracture under static loads were also determined. The sharp edges of the defects were stress concentrators which aided crack initiation. Understanding of the effect of microstructure and defect on the failure of FSW joints will aid optimisation of the process variables, tool design, weld quality assurance and decision making. On the long run, it will boost the confidence of large and medium-scale manufacturers applying FSW for the adoption and implementation of this fairly new technology.

Graphene additives have been rightly used in enhancing the capacity and cyclic performance of lead acid battery. However, the fundamental mechanisms of the enhancements in terms of electrochemical characteristics is still unclear. This study focuses on the mechanistic understanding of graphene enhancements within the interphase of the lead acid battery positive electrode in terms of charge transfer resistance and double layer capacitance on adding three graphene additives of pristine graphene, reduced graphene and graphene oxide. Reaction kinetics is greatly enhanced by reduced charge transfer resistance and high electroactive surface area (Rct) which ensures fast desorption of ions at the agglomerate interphase. Significant reduction in Rct of reduced graphene optimized samples was resulted from its larger size due to agglomeration. Electrochemical double layer capacitance or surface charge capabilities enhances discharge performance. Optimized samples had lower charge transfer resistances and were marked by increased peak current values indicating increased faradaic and non-faradaic pseudo-capacitive processes. GO, CCG and GX within the electrode interphase has the capability to store charges in the presence of H+/OH- ions. The double layer capacitances of the graphene electrodes were higher at maximum charge partly due to agglomeration in the CCG, and similarly with GX which has a higher conductivity.

Lithium battery anode plates were made from sugar processed into hard carbon by high temperature carbonization in an autoclave. Sucrose was dissolved in water at 60 ⁰C, mixed thereafter with naphthalene. The hard carbon is purifies with HCl and distilled water. Nano-hard carbons1,2 are 3-dimensional and notably larger than the 2-dimensional graphenes3-5. Anode plates were prepared by homogenizing the sonicated graphene in PVDF saturated NMP (0.53% NMP; 4% super-P carbon black; and 2.25wt% PVDF) for 1 hr. The anode slurry was coated on the copper plates using automatic doctor blade film coater at a speed of 100mm/min. Anode plates were dried at 80 ⁰C for and cured for 120 ⁰C for 2 hrs and 24 hrs respectively, in vacuum oven. Coin cells of NMC//HC were made and tested in CT2001A. The capacity of 48 µm thick and 28.2 g/m2 anode cycled at 1C was ~49.70 mAhg-1, which is a replaceable anode material for lithium-ion batteries to 67 µm thick and 33.9 g/m2 graphite anode with a capacity of 60.62 mAhg-1.

Reduced graphene and graphene oxide sheets have been in-situ functionalized during electrochemical reactions in lead-acid cathode system. This research investigated the comparative differences in surface chemistry of reduced graphene and graphene oxide sheets, and their influence on electrochemical activity within the lead acid charge and discharge reactions. The reduction of graphene oxide sheets was due to activity of OH- and H+ groups, and the grafting of HSO4- and PbO(OH)+ ions from PbO…OH- gel zone intermediate complex, via covalent and non-covalent means, is determined to facilitate the ionic reactions at interphase zone of the positive active material

Friction stir welding (FSW) is the fastest evolving joining technology and the principal prospective technique for implementing an integral fuselage structure in aircraft manufacturing. The viability of FS welds is dependent upon mechanical properties and production turnovers, which are dependent on welding rates and tool design. Hence this review paper border on the effect of welding parameters, tool designs on micro-structure, and mechanical behavior of friction stir welds. The micro-structure and micro-hardnesses which were influenced by the welding rates determined static properties, failure locations, and residual stress minima and maxima. The study reviews the nature and distribution of material flow, grain structure, and precipitates in the aluminum FS welds and their effect on mechanical properties. Advances in the industrial application of Friction Stir Welds and further prospects are critical to this review work.

The transition in the composition, electrical and fracture properties of graphene oxide paper (GO) in at the anode (aGO) and cathode (cGO) of lead /sulphuric acid boundary have been studied. Higher thermal stability and lower weight loss of aGO (34wt% at 800 °C) with XRD peak at 2ϴ = 10.5° showed the reduction of the ordinary GO paper (95wt% at 800 °C). The fractographs from the SEM showed that the cGO failed by ductile rupture of a higher degree than the ordinary GO paper, while that of the aGO was brittle cleavage. UV-Vis, Fourier Transform Infrared and X-ray Photoelectron Spectroscopies showed the changes in functional groups, via the interaction of graphene oxide functional groups with protons, adsorbed oxygen containing ions. Graphene/lead oxide based composite was achieved by covalent interactions. Non-covalent complexation of metal ions with slight reduction gave rise to stronger graphene oxide paper at the cathode. The electrical conductivity of aGO are 1.61 x 106 S/m and those of the cGO are 4.27 X 105 S/m. This foremost work is useful for further study of graphene oxide electrochemical reduction and metallic oxide functionalization for electrode materials in advanced lead-carbon batteries.

Interconnected graphene/PbO composites appearing sand-wish was developed for lead acid battery cathode. Facile processing technique which is solution based, enabled the interaction between graphene oxide nano-sheets and PbO submicron particles under mechanical stirring producing sand-wish-like structures containing graphene nano-sheets. The affinity and interaction between graphene oxide and PbO in solution were marked by changes in graphene surface chemistry. Electrodes appeared porous and interconnected, and recording approx. 15% increase in discharge performance.

The effect of reduced graphene electro-catalysts and their the agglomerate sizes, the case in lead acid battery positive active material was done. Reduced graphene size distributions were achieved via shear induced fragmentation of graphene oxide paper followed by hydrazine reduction. Increased size of agglomerates were beneficial when conductive reduced graphene was used as an electro-catalyst, and up to 14% improvements in discharge performance were recorded.

Technological demands in HEVs, renewable systems, and electrical storage systems coupled with its mature industrial process, recyclability and low cost has furthered the interests in Lead acid (LAB) systems. The LAB Positive active materials, due to low utilization and life cycle, severely limits the competitiveness of the traditional battery. Reported attempts to optimize the lead acid system using nano-size materials including graphene and carbon nanotubes, has yielded increase in some performance metrics, but little is known about the responsible mechanisms 1,2 3. Based on the gel-crystal theory, Pavlov et al. 4–6has established that the lead acid active mass particles comprises interfaces made of intermediate amorphous molecules, within which the electrochemical reactions take place. Little or nothing is known about the effects of additives of micro- and sub-micro sizes on the redox activity in the gel zone, and how the chemistry of the active mass is improved to result in global increase in capacity and cycle life of the positive active mass. This research demonstrates highly improved discharge capacity and cycle life obtained from careful combination of cathode materials with tailored graphene based additives: Graphene Oxide (GO), chemically converted graphene (CCG) and pristine graphene (GX). The chemical and electrochemical phenomena responsible for the high activity of the positive active particles in the cathode were established. PbO-GO had the best performance with highest utilization of 41.8%, followed by PbO-CCG (37.7%), PbO-control (29.7%), and PbO-GX (28.7%) at 2.5C rate. PbO-CCG seemed to have the best performance: better on charging, lower internal resistance, but poorer cycle life compared to PbO-GO. GO & CCG optimized samples had better discharge capacity and cyclic performance. Cycled at 2.5C rate, all samples but the control, had Increasing capacity till after ~50 cycles. This is due to electro-functionalization of the graphene sheets which tailored the growth of PbO2crystals in the gel zone. Also, there is a difference in the response of graphene composites to the chemistry of the reacting species on charging and discharging. The extra-ordinary mobility of ions was facilitated by electrochemical functionalization7and controlled nano-recrystallization of cathode particles along graphene sheets embedded with the gel-crystal interface. Porosity or surface area increase had no effects. REFERENCES 1. Xiang, J. et al. Beneficial effects of activated carbon additives on the performance of negative lead-acid battery electrode for high-rate partial-state-of-charge operation. J. Power Sources 241,150–158 (2013). 2. Wang, H., Yu, J., Zhao, Y. & Guo, Q. A facile route for PbO@C nanocomposites: An electrode candidate for lead-acid batteries with enhanced capacitance. J. Power Sources 224,125–131 (2013). 3. Yolshina, L. A., Yolshina, V. A., Yolshin, A. N. & Plaksin, S. V. Novel lead-graphene and lead-graphite metallic composite materials for possible applications as positive electrode grid in lead-acid battery. J. Power Sources 278,87–97 (2015). 4. Pavlov, D. & Balkanov, I. Hydration and Amorphization of Active Mass Pb02 Particles and Their Influence on the Electrical Properties of the Lead-Acid Battery Positive Plate. 136,(2003). 5. Pavlov, D. & Petkova, G. Phenomena That Limit the Capacity of the Positive Lead Acid Battery Plates. J. Electrochem. Soc. 149,A654 (2002). 6. Pavlov, D. The Lead-Acid Battery Lead Dioxide Active Mass: A Gel-Crystal System with Proton and Electron Conductivity. J. Electrochem. Soc. 139,3075 (1992). 7. Dada, O. In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Electrode Case. in 227th ECS Meeting (May 24-28, 2015). Controlled Nano-Crystallization for Optimizing of Lead Acid Positive Active Material Using Graphene Nano-Composites Technological demands in HEVs, renewable systems, and electrical storage systems coupled with its mature industrial process, recyclability and low cost has furthered the interests in Lead acid (LAB) systems. The LAB Positive active materials, due to low utilization and life cycle, severely limits the competitiveness of the traditional battery. Reported attempts to optimize the lead acid system using nano-size materials including graphene and carbon nanotubes, has yielded increase in some performance metrics, but little is known about the responsible mechanisms 1,2 3. Based on the gel-crystal theory, Pavlov et al. 4–6 has established that the lead acid active mass particles comprises interfaces made of intermediate amorphous molecules, within which the electrochemical reactions take place. Little or nothing is known about the effects of additives of micro- and sub-micro sizes on the redox activity in the gel zone, and how the chemistry of the active mass is improved to result in global increase in capacity and cycle life of the positive active mass. This research demonstrates highly improved discharge capacity and cycle life obtained from careful combination of cathode materials with tailored graphene based additives: Graphene Oxide (GO), chemically converted graphene (CCG) and pristine graphene (GX). The chemical and electrochemical phenomena responsible for the high activity of the positive active particles in the cathode were established. PbO-GO had the best performance with highest utilization of 41.8%, followed by PbO-CCG (37.7%), PbO-control (29.7%), and PbO-GX (28.7%) at 2.5C rate. PbO-CCG seemed to have the best performance: better on charging, lower internal resistance, but poorer cycle life compared to PbO-GO. GO & CCG optimized samples had better discharge capacity and cyclic performance. Cycled at 2.5C rate, all samples but the control, had Increasing capacity till after ~50 cycles. This is due to electro-functionalization of the graphene sheets which tailored the growth of PbO2 crystals in the gel zone. Also, there is a difference in the response of graphene composites to the chemistry of the reacting species on charging and discharging. The extra-ordinary mobility of ions was facilitated by electrochemical functionalization7 and controlled nano-recrystallization of cathode particles along graphene sheets embedded with the gel-crystal interface. Porosity or surface area increase had no effects. REFERENCES 1. Xiang, J. et al. Beneficial effects of activated carbon additives on the performance of negative lead-acid battery electrode for high-rate partial-state-of-charge operation. J. Power Sources 241, 150–158 (2013). 2. Wang, H., Yu, J., Zhao, Y. & Guo, Q. A facile route for PbO@C nanocomposites: An electrode candidate for lead-acid batteries with enhanced capacitance. J. Power Sources 224, 125–131 (2013). 3. Yolshina, L. A., Yolshina, V. A., Yolshin, A. N. & Plaksin, S. V. Novel lead-graphene and lead-graphite metallic composite materials for possible applications as positive electrode grid in lead-acid battery. J. Power Sources 278, 87–97 (2015). 4. Pavlov, D. & Balkanov, I. Hydration and Amorphization of Active Mass Pb02 Particles and Their Influence on the Electrical Properties of the Lead-Acid Battery Positive Plate. 136, (2003). 5. Pavlov, D. & Petkova, G. Phenomena That Limit the Capacity of the Positive Lead Acid Battery Plates. J. Electrochem. Soc. 149, A654 (2002). 6. Pavlov, D. The Lead-Acid Battery Lead Dioxide Active Mass: A Gel-Crystal System with Proton and Electron Conductivity. J. Electrochem. Soc. 139, 3075 (1992). 7. Dada, O. In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Electrode Case. in 227th ECS Meeting (May 24-28, 2015).

Graphene based nano-sheets have gained prominence in batteries and super capacitors owing to their high aspect ratio, exceptional transport properties, ionic functionalities, and surface properties. Variants like pristine graphene, graphene oxide, or chemically/thermally reduced graphene are not equal in ionic and transport properties owing to the presence or grafting of functional groups in the honey comb carbon structure. To perform as an electro-catalyst, functionalization of graphene is done by ex-situ grafting desired ions and molecules, usually covalently and non-covalently. Graphene which has zero band gap, could be treated to create semi-conductor-type functionalities. Functionalization makes its surface more amenable to further processes like deposition and nucleation of guest molecules or ions. This work demonstrates the cathodic electro-functionalization of reduced graphene sheets in the presence of lead dioxide and sulphuric acid electrolyte. High resolution SEM and TEM morphology reveals the surface of graphene sheets have been altered with the atoms of Lead, Oxygen and Sulphur. The deconvoluted C 1s spectra of electrochemically functionalized graphene shows carbon types with chemical states appearing at 284.3 eV (graphite, C—C/C═C), 286.3 eV (C—OH), 287.4 eV (C═O), and 288.3 eV (O—C═O), and 290.5 which was ∏-∏ interaction. Compared to reduced graphene, the intensity of C-C peak reduced very much, and was sacrificed for the re-appearance of oxygen functional groups, especially the (O—C═O). Further investigation were done using Raman spectroscopy and FTIR. There was a marked decrease in I(D)/I(G) ratio with presence of a bond peak at 2642 and 2940 cm-1. However, FTIR reveals that the peaks for most functional groups were still minimized like the reduced graphene, while band showing vibrations of oxides and sulphates appear between 550-1100. There were significant differences in characteristic –OH vibrations between 3000-3700 cm-1, due to water of crystallization associated with gel-crystal interface. This work also determined that the hydroxyl functional groups and carboxyl functional groups were substituted electrochemically by Pb(OH)- on charging and HSO3 - ions during discharge in the hydrated gel interface of the positive lead dioxide plate. There were evidences of increased mobility of hydrogen/hydroxyl ions which is desirable, and more efficient for conduction of SO4 2- back into the electrolyte during discharge. Oxygen containing groups with its inherent functional properties aided the hydrolysis, combination of OH- and H+ and SO42- , which made up the hydrated zone which encapsulates the graphene nano-sheets. This optimized ionic conductivity was marked by ~27% increase in discharge capacity after few cycles, and ~38.5% increase respectively after 25 cycles. Progressive functionalization of the reduced sheets enabled the Pb(OH)+, HSO3 - ions decorations on reduced graphene, by substitution of OH- and other functional groups, and ∏-∏ bond interaction as prominent mechanisms. Increase in ionic activity aided the nucleation of intermediate active materials, and increase in active sites on the large surface area of the graphene nano-sheets. This resulted in increase in capacity and charge acceptance at 0.25C rate. In-situ electrochemical functionalization of reduced graphene nano-sheets in controlled ionic and conductive system will be a cutting edge approach for controlling it’s behavior in energy materials as an electro-catalyst, in a scalable and cost effective way.

This paper reports the relationship between residual stress distribution and key friction stir welding parameters, transverse and rotational speeds, on 6056-T4 aeronautical aluminum alloy. Standard electric strain gauge based destructive technique was used to measure residual stresses at the top of the weld in the longitudinal direction. Residual stresses across the weld had the “M” distribution with asymmetry across the advancing and retreating sides. Location of retreating side tensile residual stress maximum was the weakest zone and microhardness minimum across the weld. Tensile longitudinal residual stress minimum and maximum at the retreating side of the weld reduced with increased translational speed and advance per revolution.

Wrinkled Graphene Oxide has been produced from both glow electrolytic thermal arc discharging of graphite rods combined with hummer’s process. Wrinkling in GO was enhanced by low defects, multilayer clusters, and variegated-edge interaction amongst graphene clusters. The composition of GO was confirmed by XPS, while the low defect level clearly marked by higher planar order and low ID/IG band. The GO morphology is captured by optical microscope and TEM. While arc discharge maintains the graphitic quality of the GO, the slightly modified hummer’s process did not introduce as much defects as the GO used in previous works. The wrinkled GO dispersion is optimal for quenching for DNA biosensors, and it is also applicable for similar high volume and high storage modulus epoxy composites, and other diverse materials and energy applications. REFERENCES -O. J. Dada, " In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Case. " ECS Trans., vol. 66, no. 14, pp. 19–30, Aug. 2015 -O. J. Dada, “ In-Situ Electrochemical Functionalization of Reduced Graphene Oxide: Positive Lead Acid Case.,” ECS Abstract., MA2015-01 (870), April 2015. -O. J. Dada and D. Villaroman, " Superior Electronic and Dielectric Properties of Corrugated ElectrochemicallyReduced Graphene over Graphene Oxide Papers " Journal of the Electrochemical Society, vol 166 no.2, pp D1-D16, 2019. -O. J. Dada, " Functional Cathodic and Anodic Transition of Graphene Oxide Paper in Lead Acid Battery System and Its Electrochemistry ". Materials Today: Proceedings”, vol. 3, no. 8, 2688-2697, 2016. -O. J. Dada, " Interconnected Graphene Networks as Novel NanoComposite for Optimizing Lead Acid Cathode ". IEEE NANO 2015- Int. Conf. Nanotechnology, Rome, 2015. -O. J. Dada, " Higher Capacity Utilization and Rate Performance of Lead Acid Battery Electrodes Using Graphene Additives ”. Journal of Energy Storage, vol. 23, pp579-589, Jun. 2019. -O. J. Dada, " Effect of the Size and Conductivity of Tailored Graphene Electro-Catalysts, Lead Acid Battery Cathode as a Case ". IEEE NANO 2015- Int. Conf. Nanotechnology, Rome, Italy, 2015. -O. J. Dada, " Wrinkled Graphene Oxide Synthesis by Electrolytic Arc Discharge of Graphite Rods and Slightly Modified Hummer’s Process ". Available at SSRN 3368351, 2019. -O. J. Dada, " Highly Ordered Commercial Graphene Manufactured from 3 Simple Steps ". Available at SSRN 3335369, 2019. -O. J. Dada, " Low Defect Planar Graphene Exfoliation by Sonication in Polypropylene Carbonate and 5 sec Microwaving ". Available at SSRN 3386581, 2019. -O. J. Dada, " Utilization of Hard Carbon as a Substitute for Graphite As Efficient Lithium Battery Anode Material ". Available at SSRN 3368403, 2019. -O. J. Dada, “ High Performance Lithium Battery Anodes from Non-Water based Graphene ”. Available at SSRN 3368433, 2019. -O. J. Dada, “ Free Standing Porous Graphene and Reduced Graphene Papers Manufactured from Sedimentation of Arc Discharge of Graphite Rods ”. Available at SSRN 3481786, 2019. -O. J. Dada, " Corrigendum to “Higher capacity utilization and rate performance of lead acid battery electrodes using graphene additives” . Journal of Energy Storage, vol. 23, pp579–589, Jun. 2019.

High performance lithium battery anode plates were made from processed arc discharge graphene. Arc discharge graphene has been produced from glow electrolytic thermal arc discharging of graphite rods [1-3], different from graphene or reduced graphene prepared through other means [4-11], because it maintains high crystallinity and planar characteristics of graphite marked by low ID/IG and XRD peak (2θ = 26 ⁰C). Arc discharge Graphene was sonicated in NMP for hours until fully exfoliated and able to film coat without impediments on the rougher side of the electrode copper film. Sonicated Graphene was dried in the vacuum oven. Anode plates were prepared by homogenizing the sonicated graphene in PVDF saturated NMP (0.53% NMP; 4% superP carbon black; and 2.25wt% PVDF) for 1 hr. The anode slurry was coated on the copper plates using automatic doctor blade film coater at a speed of 100mm/min. Anode plates were dried at 80 ⁰C for and cured for 120 ⁰C for 2 hrs in vacuum oven. Coin cells of NMC//HGR were made and tested in CT2001A. The capacity of the anode cycled at 1C was ~1083mAhg-1. This very high capacity of the graphene anode represents 188.3% increase over nominal graphite anodes, and one of the highest reported in published literature.