Lithium-supplementing additive as well as preparation method and application thereof
An additive and lithium-replenishing technology, applied in electrical components, electrochemical generators, battery electrodes, etc., can solve the problems of low utilization rate, by-products or gas generation, etc., to improve utilization rate, improve electrical conductivity, and improve battery capacity Effect
Pending Publication Date: 2018-03-20
SHENZHEN BAK POWER BATTERY CO LTD
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The invention discloses a lithium-supplementing additive as well as a preparation method and application thereof. The lithium-supplementing additive is of a core-shell structure, a core material is aconductive carbon material, a shell material is lithium oxide, lithium oxide is deposited on the surface of the conductive carbon material, and nano-scale lithium oxide particles form a nano-layer shell. According to the lithium-supplementing additive, lithium oxide is composited with the conductive carbon material and is utilized for supplementing lithium, and the conductive carbon material is utilized for conducting electrons, so that the utilization rate of lithium oxide is increased, and lithium can be well supplemented to an positive electrode or a negative electrode. Furthermore, after lithium is removed from the lithium-supplementing additive, the conductive carbon material can be used as an electrode conducting material, and no impurity is introduced. The lithium-supplementing additive is safe, environmentally friendly and non-toxic, and a foundation is laid for the preparation of high-capacity lithium ion batteries.
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