Electrochemomechanical degradation of high-capacity battery electrode materials
Electrochemomechanical degradation of high-capacity battery electrode materials
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DOI：
10.1016/j.pmatsci.2017.04.014
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发表时间：
2017-08
影响因子：
37.4
通讯作者：
Sulin Zhang;K. Zhao;T. Zhu;Ju Li
中科院分区：
文献类型：
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作者：
Sulin Zhang;K. Zhao;T. Zhu;Ju Li
已经进行了巨大的努力来开发具有新的电极材料的可再充电电池，所述新的电极材料不仅具有上级能量和功率密度，而且尽管体积变化巨大，但仍能抵抗电化学机械降解。本文综述了近年来锂离子电池高容量电极材料电化学力学现象的实验和模型研究进展。我们强调的电化学和机械表征，原位透射电子显微镜，多尺度建模，和其他技术的集成，在理解强大的机械-电化学耦合在充电-放电循环。虽然锂离子电池（LIB）的阳极材料是这篇综述的主要焦点，但钠离子电池（NIB）的高容量电极材料也进行了简要回顾以进行比较。以下的机制研究，设计策略，包括纳米结构，纳米孔隙率，表面涂层，和复合物的电化学机械降解和促进高容量电极的自愈进行了讨论。
Enormous efforts have been undertaken to develop rechargeable batteries with new electrode materials that not only have superior energy and power densities, but also are resistant to electrochemomechanical degradation despite huge volume changes. This review surveys recent progress in the experimental and modeling studies on the electrochemomechanical phenomena in high-capacity electrode materials for lithium-ion batteries. We highlight the integration of electrochemical and mechanical characterizations,in-situtransmission electron microscopy, multiscale modeling, and other techniques in understanding the strong mechanics-electrochemistry coupling during charge-discharge cycling. While anode materials for lithium ion batteries (LIBs) are the primary focus of this review, high-capacity electrode materials for sodium ion batteries (NIBs) are also briefly reviewed for comparison. Following the mechanistic studies, design strategies including nanostructuring, nanoporosity, surface coating, and compositing for mitigation of the electrochemomechanical degradation and promotion of self-healing of high-capacity electrodes are discussed.