CN115836437A - 一种电化学装置及包含该电化学装置的电子装置 - Google Patents

一种电化学装置及包含该电化学装置的电子装置 Download PDF

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CN115836437A
CN115836437A CN202080002006.6A CN202080002006A CN115836437A CN 115836437 A CN115836437 A CN 115836437A CN 202080002006 A CN202080002006 A CN 202080002006A CN 115836437 A CN115836437 A CN 115836437A
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electrochemical device
active material
polymer
positive
positive electrode
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刘奥
高潮
方占召
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Ningde Amperex Technology Ltd
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    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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    • H—ELECTRICITY
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Abstract

本申请提供了一种电化学装置及包含该电化学装置的电子装置，其中电化学装置包括：正极极片、负极极片、隔离膜和电解液，正极极片包含正极活性材料，正极活性材料包括化学式LiaCoxM1yM2zO2代表的锂过渡金属氧化物颗粒，其中，0.95≤a≤1.05，0.05<x<1，0≤y≤0.9，0<z≤0.2，x+y+z＝1，M1元素为选自Ni或Mn中的一种或两种，M2元素为选自Mg、Al、Ti、La、Y或Zr中的至少一种；隔离膜包括多孔基材和聚合物粘结层，聚合物粘结层设置在多孔基材和正极极片之间，聚合物粘结层对正极极片的粘结力为3N/m至100N/m。本申请的电化学装置能够有效提高正极活性材料的结构稳定性，还能避免因产气而导致的电池厚度膨胀问题。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN202080002006.6A 2020-03-18 2020-03-18 一种电化学装置及包含该电化学装置的电子装置 Pending CN115836437A (zh)

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CN115117318B (zh) * 2022-07-18 2023-07-21 大连交通大学 介孔羟基氧化铝硅包覆的锂电正极材料的制备工艺
CN115201075B (zh) * 2022-09-16 2022-12-09 江苏正力新能电池技术有限公司 一种测试活性颗粒物电化学过程体积变化率的方法

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