Back to Search
Start Over
PVC DISULFIDE AS CATHODE MATERIALS FOR SECONDARY LITHIUM BATTERIES.
- Source :
-
Chinese Journal of Polymer Science (World Scientific Publishing Company) . May2006, Vol. 24 Issue 3, p307-313. 7p. 7 Graphs. - Publication Year :
- 2006
-
Abstract
- PVC disulfide (2SPVC) was synthesized by solution crosslink and its molecular structure was confirmed by infrared spectrum. 2SPVC's specific area is 36.1 m2·g-1 tested by stand BET method, and granularity experiment gives out the particle size of d0.5 = 11.3 μm. With SEM (Scanning Electron Microscope) experiment the surface morphology and particle shape of 2SPVC were observed. Cyclic voltammetry (scan rate: 0.5 mV·s-1) shows that 2SPVC experience an obvious S–S redox reaction in charge-discharge process. When 2SPVC was used as cathode material for secondary lithium battery in a 1 mol·L-1 solution of lithium bis(trifluoromethylsulfonyl) imide (Li(CF3SO2)2N) in a 5:45:50 volume ratio mixture of o-xylene (oxy), diglyme (DG) and dimethoxymethane (DME) at 30°C, the first discharge capacity of 2SPVC is about 400.3 mAh·g-1 which is very close to its theoretical value (410.5 mAh·g-1) at a constant discharge current of 15 mA·g-1. It can retain at about 346.1 mAh·g-1 of discharge capacity after 30 charge-discharge cycles. So 2SPVC is a very promising cathode candidate for rechargeable lithium batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02567679
- Volume :
- 24
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Chinese Journal of Polymer Science (World Scientific Publishing Company)
- Publication Type :
- Academic Journal
- Accession number :
- 21157476
- Full Text :
- https://doi.org/10.1142/S0256767906001333