水对电池的影响？对于锂离子电池，水的影响主要是促进电解液的分解。电解液溶质LiPF6水解，产生HF，HF腐蚀电极，容量衰减。充电时电解液溶液EC，DMC等会分解，水的存在会促进这个过程。具体反应，可以参考下面的文献：[1] T. Kawamura, S. Okada, J.-i. Yamaki, Decomposition reaction of LiPF6-based electrolytes for lithium ion cells, Journal of Power Sources, 156 (2006) 547-554.[2] D. Aurbach, I. Weissman, A. Zaban, P. Dan, On the role of water contamination in rechargeable Li batteries, Electrochimica Acta, 45 (1999) 1135-1140.[3] C.G. Barlowz, Reaction of Water with Hexafluorophosphates and with Li Bis(perfluoroethylsulfonyl)imide Salt, Electrochemical and Solid-State Letters, 2 (1999) 362-364.[4] V. Saharan, J. Roberts, V. Manev, Y.H. Chia, G. MacLean, S.R. McMullen, Moisture-uptake by the positive active material from the casting solvent and the ambient environment, Journal of Power Sources, 146 (2005) 809-812，查看更多
第1天
关注盖德视界
添加小助手
