一种正极补锂剂及其制备方法与电池

By coating the surface of the Li5FeO4 core with an amorphous shell to form a core-shell structure, the problems of insufficient conductivity and air stability of Li5FeO4 are solved, achieving efficient electron and ion transport, suppressing electrode-electrolyte side reactions, and improving battery performance.

CN122051442BActive Publication Date: 2026-07-17阿特斯储能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
阿特斯储能科技有限公司
Filing Date
2026-04-16
Publication Date
2026-07-17

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Abstract

本发明属于电池技术领域，提供了一种正极补锂剂及其制备方法与电池，所述正极补锂剂包括内核以及包覆在所述内核表面的壳层，所述内核包括晶态补锂材料，所述壳层包括非晶态补锂材料；所述晶态补锂材料中锂元素与铁元素的摩尔量比值大于所述非晶态补锂材料中锂元素与铁元素的摩尔量比值，所述晶态补锂材料中氧元素与铁元素的摩尔量比值大于所述非晶态补锂材料中氧元素与铁元素的摩尔量比值。本发明所述正极补锂剂通过包覆非晶态且具有锂空位和氧空位的补锂材料壳层，能够显著提高正极补锂剂的电子和离子传输效率，抑制电极‑电解液界面副反应以及提高空气稳定性等。
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