Predicting and Extending the Lifetime of Li-Ion Batteries

被引：257

作者：

Burns, J. C. ^{[1
]}

Kassam, Adil ^{[2
]}

Sinha, N. N. ^{[1
]}

Downie, L. E. ^{[1
]}

Solnickova, Lucie ^{[2
]}

Way, B. M. ^{[2
]}

Dahn, J. R. ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada

[2] E One Moli Energy Canada Ltd, Maple Ridge, BC V3X 9E7, Canada

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2013年 / 160卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HIGH-PRECISION COULOMETRY; COULOMBIC EFFICIENCY; AIR BATTERY; LITHIUM; CELLS; ADDITIVES; REACTIVITY; ELECTRODE;

D O I：

10.1149/2.060309jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Battery and EV manufacturers carry out extensive long-term tests to estimate the lifetime of the battery and base warranty durations on those tests. The long duration of these tests slows progress in the research and development required to improve the lifetime of Li-ion batteries. This paper shows that accurate measurements of coulombic efficiency (CE) and impedance spectra of Li-ion batteries, that take a few weeks to acquire, can be used to rank the resulting lifetime of Li-ion cells. Adding one or more electrolyte additives to Li-ion batteries that act synergistically can dramatically improve the CE and long-term tests show corresponding ten-fold improvements in lifetime. (C) 2013 The Electrochemical Society.

引用

页码：A1451 / A1456

页数：6

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