The invention belongs to the technical field of all-solid-state lithium ion batteries, and discloses an all-solid-state lithium ion battery negative electrode material, a preparation method, a battery and application. The all-solid-state lithium ion battery negative electrode material is phosphorus or a phosphorus and carbon composite material. When the all-solid-state lithium ion battery negative electrode material is formed by compounding phosphorus and carbon, the carbon and phosphorus in the structure are uniformly mixed; the ratio of phosphorus to carbon is (5-9): (5-1). According to the invention, carbon and phosphorus are uniformly mixed through ball milling, graphite is utilized to make up for the defect of low electron conductivity of phosphorus, a conductive network structure is formed between phosphorus and graphite, and a solid electrolyte is combined, so that the battery has the characteristics of high electron conductivity and high ionic conductivity.

    本发明属于全固态锂离子电池技术领域,公开了一种全固态锂离子电池负极材料、制备方法、电池及应用。所述全固态锂离子电池负极材料,为磷或磷与碳复合材料。全固态锂离子电池负极材料由磷和碳复合而成时,结构内部碳和磷混合均匀;所述磷碳比为(5‑9):(5‑1)。本发明通过球磨将碳与磷均匀混合利用石墨弥补磷电子电导率低的不足,在磷与石墨之间形成导电网络结构,结合固态电解质,使得电池具有高电子导率,高离子电导率的特点。


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    Title :

    All-solid-state lithium ion battery negative electrode material, preparation method, battery and application


    Additional title:

    一种全固态锂离子电池负极材料、制备方法、电池及应用


    Contributors:
    HAN JUNWEI (author) / YU HUIYU (author) / KONG DEBIN (author) / LIU TING (author) / QIN XIN (author) / FAN SHUHAO (author)

    Publication date :

    2024-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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