电解液对于锂离子电池可靠性的影响研究

The Effect of Electrolyte on the Reliability of Lithium-ion Battery

以使用SW电解液和使用XZB电解液制造的1380120型号锂离子电池为研究对象,对电解液对于电池可靠性的影响进行了分析。通过倍率充放电测试、低温测试、短路测试、过充测试、过放测试和针刺测试等可靠性测试,发现:两种电解液制造的电池的电化学性能基本一致;商用SW电解液更加有利于电池低温性能的发挥;商用XZB电解液能够明显地提升电池的可靠性。

Taking the 1380120 type lithium-ion batteries made of SW electrolyte and XZB electrolyte as the research objects, the influence of electrolyte on the reliability of the battery is analyzed. And through the rate charge-discharge test, low temperature test, short circuit test, overcharge test, over discharge test and acupuncture test, it is found that the electrochemical performance of the batteries fabricated by the two electrolytes is basically the same, and the commercial SW electrolyte is more conductive to the exertion of the low temperature performance of the battery, and commercial XZB electrolyte can significantly improve the reliability of the battery.