Battery cell, battery module, battery group and device comprising battery group

电池单体、电池模块、电池组和包括电池组的装置

Abstract

本发明公开了一种电池单体、电池模块、电池组和包括电池组的装置。该电池单体包括电池壳体,其中内置有包括正电极、负电极以及布置在正电极和负电极之间的分隔物的电极组件,其中分隔物包括多孔聚合物基底和形成在多孔聚合物基底的至少一侧上的多孔有机-无机涂覆层,多孔有机-无机涂覆层包括无机颗粒以及其中六氟丙烯(HFP)含量高的PVdF-HFP聚合物粘结剂(PHFP high)与其中六氟丙烯(HFP)含量低的PVdF-HFP聚合物粘结剂(PHFP low)的混合物,无机颗粒包括金属氧化物和金属氢氧化物的混合物,并且分隔物与正电极或负电极之间的粘合力是15gf/25mm或更大。该电池模块包括作为单元电池的所述电池单体。该电池组包括上述电池模块。
The invention discloses a battery cell, a battery module, a battery group and a device comprising the battery group. The present invention relates to a battery cell having an electrode assembly embedded in a battery case, the electrode assembly comprising a cathode, an anode, and a separator interposed between the cathode and the anode, wherein the separator comprises a porous polymer substrate and an organic/inorganic porous coating layer formed on at least one surface of the porous polymer substrate, the organic/inorganic porous coating layer comprises inorganic particles comprising a mixture of a metal oxide and a metal hydroxide, and a mixture of a PVdF-HFP polymer binder ("PHFP high") having a high hexafluoropropylene (HFP) content and a PVdF-HFP polymer binder ("PHFP low") having a low HFP content, and the adhesive strength of the separator and the cathode or the anode is 15 gf/25 mm or more. The battery module comprises the battery cell which serves as an elementary battery. The battery group comprises the above battery module.

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Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-101002347-AJuly 18, 2007株式会社Lg化学有机/无机复合多孔薄膜和由其制备的电化学装置
    CN-101662041-AMarch 03, 2010深圳市比克电池有限公司Method for preparing gel polymer lithium ion battery
    CN-102623658-AAugust 01, 2012东莞新能源科技有限公司, 宁德新能源科技有限公司隔膜及其制备方法及锂离子电池
    CN-104377342-AFebruary 25, 2015三星Sdi株式会社用于可再充电锂电池的负极和含该负极的可再充电锂电池
    US-2013224553-A1August 29, 2013Ki Chul HONG, Myung Kook Park, Jin Kyu Park, Jun Ho ChungSeparator including coating layer and battery including the same

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    Publication numberPublication dateAssigneeTitle