High-multiplying-power flexibly-packaged lithium ion secondary battery and preparation method thereof
A secondary battery and flexible packaging technology, which is applied in secondary battery, electrolyte storage battery manufacturing, battery electrodes, etc., can solve the problems of increasing battery heat generation, slowing down the electrochemical reaction area and reaction speed of electrodes, and increasing battery internal resistance, etc. Achieve the effects of reducing heat generation, improving high-current discharge capacity, and reducing internal resistance
Active Publication Date: 2014-04-02
中山市电赢科技有限公司
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Abstract
The invention discloses a high-multiplying-power flexibly-packaged lithium ion secondary battery. The high-multiplying-power flexibly-packaged lithium ion secondary battery comprises an outer packaging film, wherein a positive plate, an isolation film, a negative plate and electrolyte are arranged in the outer packaging film, the positive plate comprises an aluminum foil, the surface of the aluminum foil is provided with a positive material layer consisting of positive active substances, a conductive agent and a binder, the positive active substances consist of lithium cobalt oxide and lithium iron phosphate in different working voltages, the aluminum foil is provided with a plurality of positive through holes, the positive substance layer is provided with a plurality of positive pores corresponding to the through holes, and the electrolyte can pass through the positive through holes and the positive pores; the negative plate comprises a copper foil, wherein the surface of the copper foil is provided with a negative substance layer consisting of a negative active substance, a conductive agent and a binder, the negative active substance is a carbon material, the copper foil is provided with a negative through holes, the negative substance layer is provided with a plurality of negative pores corresponding to the through holes, and the electrolyte can pass through the negative through holes and the negative pores.
Application Domain
Final product manufactureElectrode carriers/collectors +1
Technology Topic
Copper foilEngineering +5
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PUM
Property | Measurement | Unit |
Diameter | 0.1 ~ 0.5 | mm |
Compaction density | 3.6 | g/cm³ |
Compaction density | 1.4 | g/cm³ |
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