基于参比电极的三电极电池快充研究

Research on Fast Charging of Three-electrode Battery Based on Reference Electrode

本文聚焦于电动汽车快充技术中的关键问题,特别是动力电池的耐久性和安全性。为解决这些问题,本文提出一种基于参比电极的三电极电池快充研究方法。该方法通过参比电极实时监测负极电位,并控制负极电位,以防止充电过程中的析锂现象,从而得出更安全的快充策略。文中还介绍了一种快速充电算法,该算法通过两个闭环控制环节实现无损快速充电,同时还提出了一种基于“虚拟电池”的仿真开发方案,以验证快速充电算法的有效性。

This paper focuses on the key issues in the fast-charging technology of electric vehicles,especially the durability and safety of power batteries.In order to solve these problems,this paper proposes a research method for fast charging of three-electrode batteries based on reference electrodes.In this method,the negative electrode potential is monitored in real time through the reference electrode,and the negative electrode potential is controlled to prevent lithium separation during the charging process,so as to derive a safer fast charging strategy.This paper also introduces a fast-charging algorithm,which realizes lossless fast charging through two closed-loop control links,and proposes a simulation development scheme based on"virtual battery"to verify the effectiveness of the fast charging algorithm.