全面详解锂离子电池寿命预测模型

锂离子电池寿命预测资料供大家参考   锂离子电池寿命预估是个复杂的系统，文中通过多尺度、多维度（粒子维度、极片维度、电池维度）考虑预测电池寿命。  

  电化学工作窗口  

  电化学工作窗口的衰减

  负极的衰减（SEI膜形成→溶剂共嵌入→SEI重建→析锂→die）  

  正极的衰减（集流体腐蚀，导电剂氧化，粘结剂分解，正极材料裂纹，正极材料Mn等元素溶出）  

  受力致使的衰减  

  长程多维度的衰减机制

  微结构应力模型

  微观尺度的应力致使的衰减  

NREL寿命预测模型

  拐点对寿命预测至关重要？

最优化的充电策略：  

  Summary

Main factors controlling battery lifetime

Time at high T & SOC (weak coupling with DOD & C-rate)

Cycling at high DOD & C-rate; Low/high T & SOC

Semi-empirical battery lifetime models are generally suitable for system design & control

NREL models describe various commercial chemistries

Life extensions of 20% to 50% may be possible

Physics lifetime models to provide design feedback

Electrochemical/thermal processes well understood

Mechanics coupling underway at various length scales

编辑：黄飞