Functionalized insulation film, method for its production, lithium metal battery and device containing the same
DE602020051771T2Active Publication Date: 2025-05-21CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
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Patent Information
- Application Number
- DE602020051771
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-07-26
- Filing Date
- 2020-07-13
- Publication Date
- 2025-05-21
- Estimated Expiration
- 2040-07-13
AI Technical Summary
Technical Problem
Lithium metal batteries are prone to lithium dendrite formation during charging, leading to reduced coulombic efficiency, cycle life, and safety issues due to internal short circuits, hindering their commercial application.
Method used
A functionalized separator with a porous substrate and a functional film layer containing inorganic particles that reversibly react with metal lithium to form lithium alloys, inhibiting dendrite growth and improving ion deposition/dissolution reversibility.
Benefits of technology
The functionalized separator enhances initial coulombic efficiency, cycle performance, and safety by controlling lithium ion deposition and preventing internal short circuits, thus improving the overall performance of lithium metal batteries.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application discloses a functionalized separator, a method for preparing the same, a lithium metal battery, and a device comprising the lithium metal battery. The functionalized separator comprises a porous substrate and a functional film layer provided on at least one side of the porous substrate, wherein the functional film layer comprises inorganic particles which are able to reversibly react with metal lithium to form a lithium alloy.
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