Cycle life prediction and match detection in retired electric vehicle batteries

被引：12

作者：

Zhou, Xiang-yang ^{[1
]}

Zou, You-lan ^{[1
]}

Zhao, Guang-jin ^{[2
]}

Yang, Juan ^{[1
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China

[2] Henan Elect Power Corp, Elect Power Res Inst, Zhengzhou 450052, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 10期

基金：

中国国家自然科学基金;

关键词：

retired electric vehicle battery; life prediction model; match detection; electrochemical impedance spectroscopy; equivalent circuit; CAPACITY FADE; LITHIUM;

D O I：

10.1016/S1003-6326(13)62831-9

中图分类号：

TF [冶金工业];

学科分类号：

080601 [冶金物理化学];

摘要：

The lifespan models of commercial 18650-type lithium ion batteries (nominal capacity of 1150 mA.h) were presented. The lifespan was extrapolated based on this model. The results indicate that the relationship of capacity retention and cycle number can be expressed by Gaussian function. The selecting function and optimal precision were verified through actual match detection and a range of alternating current impedance testing. The cycle life model with high precision (>99%) is beneficial to shortening the prediction time and cutting the prediction cost.

引用

页码：3040 / 3045

页数：6

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