Lithium ion battery positive active substance, anode material, anode material sizing agent, anode piece, preparation method and lithium ion battery
A positive electrode active material and lithium-ion battery technology, applied in battery electrodes, electrode carriers/current collectors, secondary batteries, etc., can solve problems such as limitations, limited conductive internal resistance, and poor conductive effects, and achieve improved Thermal stability, improved safety, and excellent thermal stability
Inactive Publication Date: 2017-12-29
SHANGHAI HUAPU AUTOMOBILE CO LTD
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The invention discloses a lithium ion battery positive active substance, an anode material, an anode material sizing agent, an anode piece, a preparation method thereof and a lithium ion battery, which relates to the technical field of lithium ion batteries. The lithium ion battery positive active substance is mainly prepared from the following components by weight percent: 10 to 50 percent of lithium manganese ferrous phosphate and 50 to 90 percent of nickel cobalt lithium manganate, wherein the lithium manganese ferrous phosphate is LiMn*Fe1-*PO4, x is greater than 0.5 and less than 1; and the nickel cobalt lithium manganate is Li(Ni*CoyMnz)O2, x is greater than 0 and less than 1, y is greater than 0 and less than 1, and z is greater than 0 and less than 1. The lithium ion battery positive active substance solves the problems of excessively high temperature and safety of the traditional lithium battery at multiplying power. By improving an anode material and an anode piece, not only can the heat stability of the anode material be improved, but also the internal resistance of the pole piece can be reduced, the application to the high power can be satisfied, and the safety is good.
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Property | Measurement | Unit |
Specific surface area | 20.0 | µm |
Specific surface area | 0.3 | m²/g |
Specific surface area | 30.0 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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