An anode-free sodium battery negative electrode side current collector and a preparation method and application thereof
By setting an oxide and amorphous carbon composite coating on the surface of the current collector, the problems of uneven sodium ion deposition and dendrite growth in negative electrode-less sodium-ion batteries are solved, thereby improving the battery's safety performance and cycle life.
CN122417907APending Publication Date: 2026-07-17XIAMEN CONDENSATION FUTURE NEW ENERGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAMEN CONDENSATION FUTURE NEW ENERGY CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
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Figure CN122417907A_ABST
Abstract
本发明属于钠电池技术领域，公开了一种无负极钠电池负极侧集流体及其制备方法与应用。无负极钠电池负极侧集流体包括集流体基底和设置于所述集流体基底表面的氧化物与无定形碳复合涂层；所述氧化物为NaMnO2、NaNiO2、NaCoO2、NaMn1 / 3Ni1 / 3Co1 / 3O2、Na2 / 3Mn1 / 3Ni1 / 3Co1 / 3O2和Na2 / 3Mn1 / 3Ni1 / 3Cu1 / 3Fe1 / 3O2中的一种或多种。本发明通过在负极侧集流体表面设置氧化物与无定形碳复合涂层，降低钠成核势垒，诱导钠离子均匀沉积，抑制枝晶生长，提升了电池的安全性能与循环寿命。
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