Recent progress and perspective on lithium metal anode protection
Recent progress and perspective on lithium metal anode protection
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DOI：
10.1016/j.ensm.2018.03.001
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发表时间：
2018-09
影响因子：
20.4
通讯作者：
Huijun Yang;Cheng Guo;A. Naveed;Jingyu Lei;Jun Yang;Yanna Nuli;Jiulin Wang
中科院分区：
文献类型：
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作者：
Huijun Yang;Cheng Guo;A. Naveed;Jingyu Lei;Jun Yang;Yanna Nuli;Jiulin Wang
金属锂被认为是最有前途的下一代高能量密度锂-金属电池的最终负极。然而，锂枝晶生长失控和电池镀锂/脱锂过程中库仑效率低严重阻碍了锂离子电池的实际应用。在二次电池中，锂枝晶的生长不仅会导致容量的快速衰减和寿命的缩短，而且会导致严重的安全问题。虽然这一现象已有40多年的历史，但到目前为止，报道的策略中还没有一种能够完全解决这一问题。本文对相关报道进行了更新，将锂离子电池正极保护策略分为结构设计、界面调节、液体和固体电解液的剪裁四个部分。为了获得细胞内树枝晶生长的直观证据，还综述了用新技术表征锂沉积形态的研究进展。
Lithium (Li) metal is treated as ultimate anode for the most promising next-generation high energy density of Lithium-metal batteries (LMBs). However, uncontrolled Li dendrite growth and low Coulombic efficiency during the Li plating/stripping process in the batteries have severely hindered its practical application. In rechargeable batteries, Li dendrite growth not only leads to rapid capacity decay and short lifetime, but also results in severe safety concerns. Although this phenomenon is known for more than 40 years, none of the reported strategies are able to fully solve the problem till now. This review updates the reports and classifies the Li anode protection strategies into four parts: structure design, interface regulation, liquid and solid electrolytes tailoring. To get visual proof of dendrite growth in cells, new technique are utilized to characterize the Li deposition morphology has also been reviewed.