电池单体及其制造方法、电池及用电装置

By employing a casing and conductive pillar structure in the battery cell and setting active material layers with opposite polarities, the manufacturing process of the battery cell is simplified, production efficiency is improved and costs are reduced, while the energy density and operational stability of the battery cell are enhanced.

CN118476077BActive Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2022-10-24
Publication Date
2026-07-17

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Abstract

提供了一种电池单体(20)及其制造方法、电池(100)及用电装置，属于电池技术领域。其中，电池单体(20)包括壳体(21)、导电柱(22)和端盖(23)。壳体(21)的内部形成有容纳腔(211)，沿第一方向(X)，壳体(21)的一端设置有开口(212)，壳体(21)面向容纳腔(212)的一侧设置有第一活性物质层(24)。导电柱(22)沿第一方向(X)插设于容纳腔(212)内，导电柱(22)的外周面上设置有第二活性物质层(25)，第二活性物质层(25)与第一活性物质层(24)面向设置，且第二活性物质层(25)与第一活性物质层(24)的极性相反。端盖(23)盖合于开口(212)并与导电柱(22)相连。这种电池单体(20)无需对极片进行卷绕，节省了集流构件与极耳相互装配连接的工艺，有利于提升电池单体(20)的生产效率，且无需在壳体内设置大量的电解质，且取消了集流构件等部件，有利于降低制造成本和提高电池单体(20)的空间利用率。
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