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1. 发明公开

EP2451003A4 END-OF-DISCHARGE VOLTAGE CORRECTION DEVICE AND END-OF-DISCHARGE VOLTAGE CORRECTION METHOD 有权
标题翻译： VORRICHTUNG ZUR KORREKTUR EINER ENTLADUNGSENDSPANNUNG UND VERFAHREN ZUR KORREKTUR EINER ENTLADUNGSENDSPANNUNG
公开(公告)号：EP2451003A4
公开(公告)日：2017-06-28
申请号：EP10793898
申请日：2010-03-30
申请人： NGK INSULATORS LTD
发明人： FURUTA KAZUHITO , HIRAI NAOKI , IKUTA KEITA
IPC分类号： H01M10/48 , G01R31/36 , H01M2/10 , H01M10/39 , H01M10/44 , H02J7/00
CPC分类号： H02J7/0014 , G01R31/362 , G01R31/3651 , G01R31/3658 , H01M10/3909 , H01M10/441 , H01M10/448 , H02J7/0021 , H02J7/0029 , Y02E60/12
摘要： Provided are an end-of-discharge voltage correction device and an end-of-discharge voltage correction method for appropriately correcting an end-of-discharge voltage. An end-of-discharge voltage correction section subtracts, from an end-of-discharge open voltage VLOC, the product I×RO of a discharge current I of a block and an ohmic resistance RO of the block and the product lTD×RP of a discharge current ITD obtained by performing a time delay process on the discharge current I of the block and a polarization resistance RP of the block. Then, a resulting value is set as an end-of-discharge voltage VL. The ohmic resistance RO is increased as an equivalent cycle count CY increases, and is increased as a healthy parallel number NPH decreases. An increment ”CY of the equivalent cycle count CY in each charge/discharge cycle becomes greater as a discharge depth DD increases. The healthy parallel number NPH is derived by multiplying a healthy parallel number NPHR of a reference block by the ratio of a capacity CPR of the reference block to a capacity CPS of a target block.
摘要翻译：提供了用于适当地校正放电终止电压的放电结束电压校正装置和放电终止电压校正方法。放电终止电压校正部分从放电终止开路电压VLOC中减去块的放电电流I和块的欧姆电阻RO的乘积I×RO以及块的乘积I TD×RP 通过对块的放电电流I和块的极化电阻RP进行时间延迟处理而获得放电电流ITD。然后，将所得的值设定为放电结束电压VL。欧姆电阻RO随着等效循环次数CY增加而增加，并且随着健康并行数量NPH减小而增加。随着排出深度DD的增加，每个充电/放电循环中等效循环次数CY的增量“CY”变得更大。健康并行数NPH是通过将参考块的健康并行数NPHR乘以参考块的容量CPR与目标块的容量CPS的比来导出的。

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