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    • 1. 发明授权
    • Apparatus and system for an internal fuse in a battery cell
    • 用于电池单元内部保险丝的装置和系统
    • US09413031B2
    • 2016-08-09
    • US12410132
    • 2009-03-24
    • Joseph Anthony HolungTin-Lup WongBouziane Yebka
    • Joseph Anthony HolungTin-Lup WongBouziane Yebka
    • H01M10/052H01M10/42H02J7/00
    • H01M10/052B60L3/0046B60L3/04B60L2240/545B60L2240/549H01M10/4235H01M2200/106H02J7/0031Y02E60/122Y02T10/7011
    • A battery is disclosed for reducing the severity of thermal runaway. The battery includes an anode sheet, a cathode sheet, and a separator situated between the anode sheet and the cathode sheet. The anode sheet, cathode sheet, and separator may be put together in a jelly roll configuration. The battery also includes internal fuses that subdivide the anode sheet, cathode sheet, or both, into electrically separate areas. The fuses are activated during thermal runaway and isolate separate areas of the sheet, thus reducing the total energy available during thermal runaway and reducing the severity. The fuses may be positive temperature coefficient (PTC) fuses that conduct current at normal operating temperatures but stop conducting current at temperatures above normal operating temperatures. The fuses may be placed in the current collectors, or directly into the anode sheet and cathode sheet themselves. In certain embodiments, the fuses may stop conducting when they reach a predefined threshold temperature or when an excessively large current passes through the fuses.
    • 公开了一种用于降低热失控的严重性的电池。 电池包括阳极片,阴极片和位于阳极片和阴极片之间的隔膜。 阳极片,阴极片和隔膜可以以果冻卷结构放在一起。 电池还包括将阳极片,阴极片或两者分为电气分离区域的内部熔丝。 保险丝在热失控期间被激活,并隔离片材的不同区域,从而减少热失控期间可用的总能量并降低严重性。 保险丝可以是在正常工作温度下传导电流的正温度系数(PTC)保险丝,但在高于正常工作温度的温度下停止传导电流。 保险丝可以放置在集电器中,或直接放入阳极片和阴极片本身。 在某些实施例中,当熔断器达到预定阈值温度时或当过大电流通过保险丝时,保险丝可能会停止导通。