HIGH VOLTAGE BATTERY FORMATION PROTOCOLS AND CONTROL OF CHARGING AND DISCHARGING FOR DESIRABLE LONG TERM CYCLING PERFORMANCE
    6.
    发明申请
    HIGH VOLTAGE BATTERY FORMATION PROTOCOLS AND CONTROL OF CHARGING AND DISCHARGING FOR DESIRABLE LONG TERM CYCLING PERFORMANCE 有权
    高压电池形成协议和控制充电和放电的长期循环性能

    公开(公告)号:US20110236751A1

    公开(公告)日:2011-09-29

    申请号:US12732520

    申请日:2010-03-26

    IPC分类号: H01M6/04 H02J7/04

    摘要: Improved cycling of high voltage lithium ion batteries is accomplished through the use of a formation step that seems to form a more stable structure for subsequent cycling and through the improved management of the charge-discharge cycling. In particular, the formation charge for the battery can be performed at a lower voltage prior to full activation of the battery through a charge to the specified operational voltage of the battery. With respect to management of the charging and discharging of the battery, it has been discovered that for the lithium rich high voltage compositions of interest that a deeper discharge can preserve the cycling capacity at a greater number of cycles. Battery management can be designed to exploit the improved cycling capacity obtained with deeper discharges of the battery.

    摘要翻译: 高压锂离子电池的改进循环是通过使用似乎形成用于随后循环的更稳定结构并通过改进的充放电循环管理的形成步骤来实现的。 特别地,电池的形成电荷可以在电池完全激活之前以较低的电压进行,通过电荷到电池的指定工作电压。 关于电池的充电和放电的管理,已经发现,对于感兴趣的富锂高压组合物,更深的放电可以在更多的循环数量下保持循环容量。 电池管理可以设计成利用电池更深的放电获得的改进的循环容量。