Nix-CoPyOz nano material and preparation method and application thereof
By growing Nix-CoPyOz nanofilm materials on conductive substrates, using radiation-heating preparation method, the problem of irreversible active lithium loss in the cycle process of negative electrode lithium metal batteries is solved, and high energy density and long cycle performance are improved.
CN119695048AActive Publication Date: 2025-03-25RES INST OF CHEM DEFENSE PLA ACAD OF MILITARY SCI
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Patent Information
- Application Number
- CN202411754560.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2044-12-02
AI Technical Summary
Technical Problem
The irreversible loss of active lithium in the existing negative electrode-free lithium metal batteries during the cycle leads to a low battery capacity retention rate, which cannot meet the needs of high energy density.
Method used
Nix-CoPyOz nanofilm material is grown on the conductive substrate by radiation-heating preparation method, improving its lithium-philicity and lithium binding energy, thereby improving the specific energy and long-cycle performance of the battery.
Benefits of technology
It realizes the construction of super lithium-philic materials on the current collector without metal negative electrodes, improves battery capacity and cycle stability, and meets the needs of high energy density.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the field of energy storage and materials, and particularly relates to a Nix-CoPyOz nano material and a preparation method and application thereof. The invention develops a gamma ray radiation reduction and heat treatment method. The Nix-CoPyOz nano material is regulated and grown on a conductive substrate. When the Nix-CoPyOz nano-film material growing on the CC is used as an anode, a lithium sheet or graphite is used as a cathode, and a diaphragm adopts Celgard2035 to assemble a battery, the potential of deposited lithium is 5.3 mV. The Nix-CoPyOz nano-film material prepared by the invention has the characteristics of super lithium affinity or relatively high binding energy with lithium, and lithium can be uniformly deposited on a current collector when the metal-free negative electrode is used as the current collector, so that the battery capacity and the cycling stability are further improved.
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