INTERNAL SHORT DETECTION AND MITIGATION IN BATTERIES

    公开(公告)号:US20190058224A1

    公开(公告)日:2019-02-21

    申请号:US16167149

    申请日:2018-10-22

    申请人: Robert Bosch GmbH

    摘要: Devices, systems, and techniques for identifying a dendrite material within a battery. The method comprising receiving, by a battery management system, an output from sensing circuitry within the battery indicative of a first voltage level, detecting, by the battery management system, a change from the first voltage level to a second voltage level that is indicative of an internal short within a sensing sheet, determining by the battery management system, a resistance and a two-dimensional position of the internal short within the sensing sheet, and identifying, by the battery management system, a dendrite material based on the resistance of the internal short.

    Li/metal battery with composite solid electrolyte
    67.
    发明授权
    Li/metal battery with composite solid electrolyte 有权
    锂/金属电池与复合固体电解质

    公开(公告)号:US09484595B2

    公开(公告)日:2016-11-01

    申请号:US14459761

    申请日:2014-08-14

    申请人: Robert Bosch GmbH

    摘要: In accordance with one embodiment, an electrochemical cell includes a first anode including a form of lithium a first cathode including an electrolyte, and a first composite electrolyte structure positioned between the first anode and the first cathode, the first composite electrolyte structure including (i) a first support layer adjacent the first anode and configured to mechanically suppress roughening of the form of lithium in the first anode, and (ii) a first protective layer positioned between the first support layer and the first cathode and configured to prevent oxidation of the first support layer by substances in the first cathode.

    摘要翻译: 根据一个实施例,电化学电池包括包括锂的形式的第一阳极,包括电解质的第一阴极和位于第一阳极和第一阴极之间的第一复合电解质结构,第一复合电解质结构包括(i) 与所述第一阳极相邻并且被配置为机械地抑制所述第一阳极中的锂形式的粗糙化的第一支撑层,以及(ii)位于所述第一支撑层和所述第一阴极之间并被配置为防止所述第一阳极氧化的第一保护层, 由第一阴极中的物质支撑层。

    Lithium-ion battery with life extension additive
    69.
    发明授权
    Lithium-ion battery with life extension additive 有权
    带寿命延长添加剂的锂离子电池

    公开(公告)号:US09048505B2

    公开(公告)日:2015-06-02

    申请号:US13667622

    申请日:2012-11-02

    申请人: Robert Bosch GmbH

    摘要: A system and/or method for replenishing lithium-ion battery capacity that is lost due to side reactions over the lifetime of a battery in one embodiment includes a battery with a first electrode, a second electrode, a separator region configured to electronically isolate the first and second electrodes, a first portion of lithium metal encapsulated within a first ionically insulating barrier configured to prevent transport of lithium ions therethrough, a memory in which command instructions are stored, and a processor configured to execute the command instructions to (i) determine a first lithium content of the first electrode, (ii) compare the first lithium content of the first electrode to a first threshold, and (iii) activate the first portion of lithium metal based on the comparison of the first lithium content to the first threshold.

    摘要翻译: 在一个实施例中,用于补充由于在电池的寿命期间的副反应而损失的锂离子电池容量的系统和/或方法包括具有第一电极的电池,第二电极,被配置为电隔离第一 和第二电极,封装在第一离子绝缘阻挡层内的锂金属的第一部分,其被配置为防止锂离子通过其传输,其中存储命令指令的存储器以及被配置为执行命令指令的处理器,以(i)确定 第一电极的第一锂含量,(ii)将第一电极的第一锂含量与第一阈值进行比较,以及(iii)基于第一锂含量与第一阈值的比较来激活锂金属的第一部分。