可充电电池中枝晶问题的相场模拟

李亚捷, 张更, 沙立婷, 赵伟, 陈斌, 王达, 喻嘉, 施思齐

Phase-field simulation of dendrite growth in rechargeable batteries

Yajie LI, Geng ZHANG, Liting SHA, Wei ZHAO, Bin CHEN, Da WANG, Jia YU, Siqi SHI

图3 (a) MSTF⊥AAO隔膜与(b) AAO隔膜示意图，(c) 装配两种隔膜的电池的恒流循环性能；(d) 装配复合隔膜及(e) 单层隔膜电池中锂枝晶形貌(2 s)；(f) 装配复合隔膜及(g) 单层隔膜电池中锂枝晶形貌(1 s)；(h) 装配复合隔膜及(i) 单层隔膜电池中离子浓度分布，(j) y=2.5 μm截线位置的离子浓度分布图

Fig. 3 Schematic diagram of Li deposition on the electrode through (a) MSTF⊥AAO separator and (b) AAO separator, (c) galvanostatic cycling performance of Li-Li symmetric cells with AAO and MSTF⊥AAO, phase-field simulation of Li dendrite evolution under hybrid and single-layer separator: phase-field variable at 2 s (d)-(e) and 1 s (f)-(g), Li+ concentration at 1 s (h)-(i), Li+ concentration alone y=2.5 μm (j)