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Your search keyword '"Qu, Deyang"' showing total 392 results
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392 results on '"Qu, Deyang"'

1. Improved interfacial resistance and crystal-structure stability in a low-cobalt P2-type sodium-ion battery cathode material

Author

Rexhausen, William, Parsons, Christian, Garg, Uma, Qu, Deyang, and Guptasarma, Prasenjit

Subjects
Condensed Matter - Materials Science
Abstract

We describe Na0.67Mn0.625Fe0.25Co0.125O2 (NMFCO), a P2-type sodium-ion battery cathode. Our composition, with significantly less Co than in an earlier study, shows discharge capacity close to 190 mAhg-1 and specific energy density exceeding 500 mWhg-1 in the 1.5 to 4.3 V range. The material also shows an improved structural stability over similar materials. Such changes, between the pristine phase (P63/mmc, P63 (OP4), or orthorhombic Cmcm) and the so-called Z phase, are endemic to other P2-type cathodes such as Na0.67Mn0.65Fe0.35O2 (NMFO). We propose two equivalent circuit models of impedance spectroscopy to understand electrochemical processes in our cells with a sodium metal anode. Our equivalent circuit modeling, combined with an analysis of the initial galvanostatic slope, reveals a significant reduction in the polarization and interfacial charge-transfer resistance at the solid electrolyte interface. We reveal that the combined effects of crystal structure stability, lower internal resistance, relatively high specific energy density, and improved battery health make this low-cobalt P2-type cathode composition a very promising candidate for new sodium-ion batteries., Comment: 49 pages, 9 figures

Published
2024

2. Pressure-Induced Detour of Li$^+$ Transport during Large-Scale Electroplating of Lithium in High-Energy Lithium Metal Pouch Cells

Author

Liu, Dianying, Wu, Bingbin, Xu, Yaobin, Ellis, Jacob, Lu, Dongping, Lochala, Joshua, Anderson, Cassidy, Baar, Kevin, Qu, Deyang, Yang, Jihui, Galvez-Aranda, Diego, Lopez, KatherineJaime, Balbuena, Perla B., Seminario, Jorge M., Liu, Jun, and Xiao, Jie

Subjects
Physics - Chemical Physics, Condensed Matter - Materials Science
Abstract

Externally applied pressure impacts the performance of batteries particularly in those undergoing large volume changes, such as lithium metal batteries. In particular, the Li$^+$ electroplating process in large format pouch cells occurs at a larger dimension compared to those in smaller lab-scale cells. A fundamental linkage between external pressure and large format electroplating of Li$^+$ remains missing but yet critically needed to understand the electrochemical behavior of Li$^+$ in practical batteries. Herein, this work utilizes 350 Wh/kg lithium metal pouch cell as a model system to study the electroplating of Li$^+$ ions and the impact of external pressure. The vertically applied uniaxial pressure on the batteries using liquid electrolyte profoundly affects the electroplating process of Li$^+$ which is well reflected by the self-generated pressures in the cell and can be correlated to battery cycling stability. Taking advantage of both constant gap and pressure application, all Li metal pouch cells demonstrated minimum swelling of 6-8% after 300 cycles, comparable to that of state-of-the-art Li-ion batteries. Along the horizontal directions, the pressure distributed across the surface of Li metal pouch cell reveals a unique phenomenon of Li$^+$ migration during the electroplating (charge) process driven by an uneven distribution of external pressure across the large electrode area, leading to a preferred Li plating in the center area of Li metal anode. This work addresses a longstanding question and provides new fundamental insights on large format electrochemical plating of Li which will inspire more innovations and lead to homogeneous deposition of Li to advance rechargeable lithium metal battery technology., Comment: 17 pages, 4 figures

Published
2023

15. Contributors

Author

Ahmad, Awais, primary, Akhtar, Naseem, additional, Amine, Khalil, additional, Aslam, Muhammad Kashif, additional, Auger, Daniel J., additional, Ayadi, Faten, additional, Bonnick, Patrick, additional, Buch, Elizaveta, additional, Datta, Moni K., additional, Ding, Tianyao, additional, Fotouhi, Abbas, additional, Glossmann, Tobias, additional, Hao, Feng, additional, Hepp, Aloysius F., additional, Hussain, Shahid, additional, Javed, Muhammad Sufyan, additional, Ke, Fu-Sheng, additional, Kumta, Prashant N., additional, Kuruba, Ramalinga, additional, Laine, Richard M., additional, Liu, Zhixiao, additional, Mistry, Aashutosh, additional, Mukherjee, Partha P., additional, Muldoon, John, additional, Najam, Tayyaba, additional, Pajan, Tea, additional, Prasada Rao, T., additional, Qu, Deyang, additional, Raj, Abhi, additional, Shah, Syed Shoaib Ahmad, additional, Shateri, Neda, additional, Srinivasan, Venkat, additional, Temeche, Eleni, additional, Tufail, Muhammad Khurram, additional, Velikokhatnyi, Oleg I., additional, Vishnugopi, Bairav S., additional, Wan, Si-Cheng, additional, Wang, Hao, additional, Xu, Gui-Liang, additional, Xu, XiaoLong, additional, Zhang, Xiangzhao, additional, Zhao, Chen, additional, Zhao, Tianshou, additional, and Zheng, Dong, additional

Published
2022
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35. Controlled Large-Area Lithium Deposition to Reduce Swelling of High-Energy Lithium Metal Pouch Cells in Liquid Electrolytes

Author

Xiao, Jie, primary, Liu, Dianying, additional, Wu, Bingbin, additional, Xu, Yaobin, additional, Ellis, Jacob, additional, Baranovski, Arthur, additional, Lu, Dongping, additional, Lochala, Joshua, additional, Anderson, Cassidy, additional, Baar, Kevin, additional, Qu, Deyang, additional, Yang, Jihui, additional, Aranda, Diego, additional, Lopez, Katherine, additional, Balbuena, Perla, additional, Seminario, Jorge, additional, and Liu, Jun, additional

Published
2023
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46. Batteries Annual Progress Report (FY2019)

Author

Taggougui, Mohamed, primary, Thakur, Madhuri, additional, Hayner, Cary, additional, Slater, Michael, additional, Wang, Yan, additional, Surampudi, Bapiraju, additional, Smith, Ian, additional, Lopez, Herman, additional, Hellring, Stuart, additional, Costantino, Henry, additional, Wood III, David, additional, Du, Zhijia, additional, Li, Jianlin, additional, Kahvecioglu, Ozge, additional, Libera, Joseph, additional, Shin, Youngho, additional, Xing, Yangchuan (Chad), additional, Pintauro, Peter, additional, Dzwiniel, Trevor, additional, Wood, Brandon, additional, Battaglia, Vincent, additional, Tucker, Michael, additional, Ceder, Gerbrand, additional, Srinivasan, Venkat, additional, Iddir, Hakim, additional, Smith, Kandler, additional, Colclasure, Andrew, additional, Finegan, Donal, additional, Dey, Satadru, additional, Rao, Ranjeet, additional, Santhanagopalan, Shriram, additional, Roberts, Scott, additional, Abraham, Daniel, additional, Bae, Chulheung, additional, Allu, Srikanth, additional, Gaines, Linda, additional, Pesaran, Ahmad, additional, Spangenberger, Jeff, additional, Zhang, Zhengcheng (John), additional, Dufek, Eric, additional, Keyser, Matthew, additional, Usseglio-Viretta, Francois, additional, Mai, Weijie, additional, Brow, Ryan, additional, Allen, Jeffrey, additional, Dai, Sheng, additional, Karulkar, Mohan, additional, Amine, Khalil, additional, Takeuchi, Esther, additional, Takeuchi, Kenneth, additional, Marschilok, Amy, additional, Bock, David, additional, Balsara, Nitash, additional, Liu-Mattis, Wenjuan, additional, Burrell, Anthony, additional, Ahmed, Shabbir, additional, Bloom, Ira, additional, Robertson, David, additional, Prezas, Panos, additional, Flores, LeRoy, additional, Lamb, Joshua, additional, Saxon, Aron, additional, Bethel, Thomas, additional, Jansen, Andrew, additional, Lu, Wenquan, additional, Walker, Lee, additional, Vaughey, Jack, additional, Liu, Gao, additional, Zhang, Ji-Guang, additional, Li, Xiaolin, additional, Cui, Yi, additional, Croy, Jason, additional, Wang, Feng, additional, Bai, Jianming, additional, Goodenough, John, additional, Chen, Guoying, additional, Toney, Michael, additional, Strmcnik, Dusan, additional, Stamenkovic, Vojislav, additional, Doeff, Marca, additional, Xiao, Jie, additional, Tenent, Robert, additional, Hendershot, Ron, additional, Sunstrom, Joseph, additional, Falzone, Alec, additional, Kodas, Toivo, additional, Meng, Ying, additional, Belharouak, Ilias, additional, Xin, Huolin, additional, Lin, Feng, additional, Persson, Kristin, additional, Xu, Wu, additional, Fan, Jiang, additional, Manthiram, Arumugam, additional, Kidner, Neil, additional, Wang, Donghai, additional, Wang, Chao-Yang, additional, Jagjit, Nanda, additional, Wang, Chongmin, additional, Kostecki, Robert, additional, Yang, Xiao-Qing, additional, Bak, Seongmin, additional, Prasher, Ravi, additional, Xiao, Xingcheng, additional, Sheldon, Brian, additional, Gao, Huajian, additional, Qi, Yue, additional, Cheng, Yang-Tse, additional, Zhang, Qinglin, additional, McCloskey, Bryan, additional, Chueh, William, additional, Wheeler, Dean, additional, Mazzeo, Brian, additional, Wang, Lin-Wang, additional, Chen, Long-Qing, additional, Dudney, Nancy, additional, Herbert, Erik, additional, Sakamoto, Jeff, additional, Chen, Xi (Chelsea), additional, Balbuena, Perla, additional, Seminario, Jorge, additional, Mukherjee, Partha, additional, Kumt, Prashant, additional, Datta, Moni, additional, Velikokhatnyi, Oleg, additional, Ye, Jianchao, additional, Bao, Zhenan, additional, Wu, Nianqiang, additional, Westover, Andrew, additional, Nanda, Jagjit, additional, Delnick, Frank, additional, Markovic, Nenad, additional, Curtiss, Larry, additional, Amatucci, Glenn, additional, Cheung, Chi, additional, Lu, Dongping, additional, Liu, Jun, additional, Qu, Deyang, additional, Jen, Alex, additional, Yang, Jihui, additional, Lu, Jun, additional, Salehi, Amin, additional, Ngo, Ahn, additional, Hu, Enyuan, additional, Johnson, Christopher, additional, Sofie, Stephen, additional, and Glossmann, Tobias, additional

Published
2020
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