Investigation on Optimal Pulse Current Charging of Lithium-ion Batteries using Electro-Chemical Model

被引：2
作者：
Park, Tae-Ryong [1 ]
Lee, Jae-In [1 ]
Choi, Yu-Song [1 ]
机构：
[1] Agcy Def Dev ADD, Daejeon 34186, South Korea
来源：
2021 21ST INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2021) | 2021年
关键词：
Charging strategy; Battery modeling; Pulse charging; Battery degradation; SINGLE-PARTICLE MODEL;
D O I：
10.23919/ICCAS52745.2021.9649833
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Recently, research on charging strategies for lithium-ion batteries have been widely conducted for fast and safe charging. Among them, pulse charging technology is attracting attention for its effectiveness in terms of suppressing degradation and fast charging. Pulse charging can reduce the polarization voltage by facilitating diffusion of lithium-ions in the electrode by giving a rest time during charging. In this study, by using electro-chemical model of the lithium-ion battery, we analyze the effect of battery degradation according to various pulse parameter and find the optimal pulse parameter in low-temperature and room-temperature environments. Through the model, degradation indicators such as lithium plating and SEI growth were quantitatively analyzed. As a result, when charging with the same average current, it was confirmed that pulse charging caused less degradation and increased temperature compared to the constant-current charging strategy. In pulse charging, the longer the rest time and the smaller the rest current, the greater the degree. Also, it was found that pulse charging is more efficient at low temperature.
引用
收藏
页码：295 / 300
页数：6
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