CN114846691A - 一种隔离膜、含有它的二次电池及其相关的电池模块、电池包和装置 - Google Patents

一种隔离膜、含有它的二次电池及其相关的电池模块、电池包和装置 Download PDF

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CN114846691A
CN114846691A CN202080083061.2A CN202080083061A CN114846691A CN 114846691 A CN114846691 A CN 114846691A CN 202080083061 A CN202080083061 A CN 202080083061A CN 114846691 A CN114846691 A CN 114846691A
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styrene
copolymer
organic particles
coating
separator
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CN114846691B (zh
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程丛
洪海艺
杨建瑞
兰媛媛
柳娜
金海族
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Contemporary Amperex Technology Co Ltd
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Abstract

一种隔离膜以及包括所述隔离膜的二次电池、包括所述二次电池的装置以及所述隔离膜的制备方法，所述隔离膜包括基材(A)和形成在所述基材(A)至少一个表面上的涂层(B)，所述涂层(B)包括无机颗粒(B2)和第一种有机颗粒(B1)，所述第一种有机颗粒(B1)嵌于所述无机颗粒(B2)中且在所述涂层(B)表面形成凸起；所述第一种有机颗粒(B1)为一次颗粒形貌，且所述第一种有机颗粒(B1)的数均粒径≥2μm。

Description

PCT国内申请，说明书已公开。

Claims (27)

  1. PCT国内申请，权利要求书已公开。
CN202080083061.2A 2020-11-30 2020-11-30 一种隔离膜、含有它的二次电池及其相关的电池模块、电池包和装置 Active CN114846691B (zh)

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CN115939673A (zh) * 2022-11-30 2023-04-07 宁德时代新能源科技股份有限公司 隔离膜及其制备方法、电池和用电设备
WO2024108520A1 (zh) * 2022-11-25 2024-05-30 宁德时代新能源科技股份有限公司 二次电池和用电装置
WO2024119290A1 (zh) * 2022-12-05 2024-06-13 宁德时代新能源科技股份有限公司 隔离膜及其制备方法、二次电池和用电装置

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