锂离子电池多物理场多尺度变形理论模型与计算方法

吴宜琨, 何杰, 杨乐, 宋维力, 陈浩森

Multiscale and multiphysics theoretical model and computational method for lithium-ion batteries

Yikun WU, Jie HE, Le YANG, Weili SONG, Haosen CHEN

图1 (a) 变形梯度的Lee分解[24]；(b) 当前构型与参考构型下应力分布示意图[23]；(c) 无量纲浓度与应力在颗粒中的分布云图[27]；(d) 硅纳米线各向异性膨胀应力云图[21]

Fig. 1 (a) Decomposition of total deformation[24]; (b) Stress distribution on the reference state and current state[23]; (c) Concentration and stress distribution in the electrode particle[27]; (d) Anisotropic expansion and the stress distribution of the Si electrode[21]