锂离子电池加速循环新评估方法研究
Research on New Assessment Method of Lithium-ion Battery
Accelerated Circulation
摘要 针对现有标准中有关锂离子电池循环测试方法的不足,通过尝试改变温度、提高充电上限电压、降低放电截止电压和增加充放电电流等试验方法探究锂离子电池循环新加速方法;分析电流加速循环曲线并拟合方程,形成新评估方法。
关键词 锂离子电池;加速循环;新评估方法;GJB 4477
Abstract Disadvantages of lithium-ion battery cycling test methods are analyzed in the
existing standards. Then the new assessment method of lithium-ion battery accelerated
circulation is explored by changing temperature, increasingthe maximum charging voltage
reducing the end-of-charge voltage and enhancing the charging and discharging current.
Morever, new assessment is done by analyzing the curve of current accelerated circulation
and fitting equation.
Keywords lithium-ion battery; acceleration cycle; new assessment method;GJB 4477
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