Investigation on gas generation of Li4Ti5O12/LiNiCoMnO2 cells at elevated temperature
文献类型：期刊论文
| 作者 | Jun Yang，王德宇 ; Kai Wu a,c, Jun Yang a,*, Yang Liu b, Yao Zhang c, Chenyun Wang b, Jinmei Xu c, Feng Ning c, Deyu Wang b,** |
| 刊名 | Journal of Power Sources
 |
| 出版日期 | 2013-03-12 |
| 期号 | 1页码:285—290 |
| 通讯作者 | Jun Yang，王德宇 |
| 合作状况 | 李雨桐 |
| 中文摘要 | The possible reasons and key factors on gas generation of Li4Ti5O12 (LTO) cells are investigated by the accelerating measurement baking at 80 C for 120 h. It is found that the chemically catalytic reaction related to moisture makes a minor contribution to cell swelling. Our LTO-based 383450 cells (w10 mL) before pre-charge (i.e. formation) only produce w1.5 mL gas during baking test and CO2, instead of H2, is the dominant species in EC/DMC electrolyte. By contrast, the swelling ratio of the charged LTO cells, which are re-sealed after formation, is kept at w97% regardless of states of charge. This severe decomposition of carbonates at elevated temperature should be dominated by the anode potential, rather than catalysis of LTO, since graphite/NMC cells show a similar swelling behavior at over-discharge state, where graphite anode shares the same potential as LTO. On the other hand, the electrolyte stability is also dependent on the type of solvent. Among the investigated systems, the mixture of PC t DMC (1:1) exhibits the best behavior to suppress the cell swelling. The swelling ratio diminishes from w100% of other electrolytes to 50%. This improvement probably roots in the high quality of protective films formed during solvents’ decomposition. |
| 学科主题 | 材料物理与化学 |
| 原文出处 | SCI收录 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/9843]  |
| 专题 | 宁波材料技术与工程研究所_宁波所知识产出 |
| 推荐引用方式 GB/T 7714 | Jun Yang，王德宇,Kai Wu a,c, Jun Yang a,*, Yang Liu b, Yao Zhang c, Chenyun Wang b, Jinmei Xu c, Feng Ning c, Deyu Wang b,**. Investigation on gas generation of Li4Ti5O12/LiNiCoMnO2 cells at elevated temperature[J]. Journal of Power Sources,2013(1):285—290. |
| APA | Jun Yang，王德宇,&Kai Wu a,c, Jun Yang a,*, Yang Liu b, Yao Zhang c, Chenyun Wang b, Jinmei Xu c, Feng Ning c, Deyu Wang b,**.(2013).Investigation on gas generation of Li4Ti5O12/LiNiCoMnO2 cells at elevated temperature.Journal of Power Sources(1),285—290. |
| MLA | Jun Yang，王德宇,et al."Investigation on gas generation of Li4Ti5O12/LiNiCoMnO2 cells at elevated temperature".Journal of Power Sources .1(2013):285—290. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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