CARBON-LITHIUM COMPOSITE POWDER AND PREPARATION METHOD THEREOF, AND PREPARATION METHOD OF LITHIUM METAL SECONDARY BATTERY ELECTRODE
To provide a carbon-lithium composite powder and a preparation method thereof, and a preparation method of a lithium metal secondary battery electrode.SOLUTION: A carbon material is used as a skeleton to support metal lithium, which increases the specific surface area of a composite powder, and can...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a carbon-lithium composite powder and a preparation method thereof, and a preparation method of a lithium metal secondary battery electrode.SOLUTION: A carbon material is used as a skeleton to support metal lithium, which increases the specific surface area of a composite powder, and can effectively reduce the current density and stabilize the surface potential of an electrode, thereby effectively inhibit the growth of lithium dendrites during the process in which the metal lithium is used as an anode material. A roller rolling process is adopted to prepare the electrode, such that it is easy to regulate the effective capacity of the metal lithium loaded on an electrode plate, thereby better matching the corresponding cathode active material to improve the effective utilization rate of the metal lithium.SELECTED DRAWING: Figure 1
【課題】炭素リチウム複合粉末及びその製造方法とリチウム金属二次電池電極の製造方法を提供すること。【解決手段】炭素材料を骨格として金属リチウムを支持することにより、複合粉末の比表面積を向上させて、電流密度を効果的に低下させ、電極の表面ポテンシャルを安定化させ、さらに負極材料として使用される過程におけるリチウムデンドライトの成長を効果的に抑制する。ローラー圧延プロセスにより電極を製作することで、極板に担持された金属リチウムの有効容量を容易に制御でき、それにより対応した正極活物質によくマッチングして、金属リチウムの有効利用率を向上させることができる。【選択図】図１ |
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