Porous electrode and lithium secondary cell having same

A technology for lithium secondary batteries and porous electrodes, which is applied in the field of lithium secondary batteries with porous electrodes, can solve the problems of insufficient strength, weakened current collecting ability of the current collector, and easy damage during preparation or use, and achieves the pore size. Small, beneficial to lithium ion migration, and the effect of improving capacitance and current collection performance
CN1581545AInactive Publication Date: 2005-02-16HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Publication Date
2005-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

Porous electrode includes current collection body and an electrode active material. The current collection body includes a base and multiple holes inside the base. One end of hole is open end and the other end is closed. Electrode active material is filled into multiple holes, which makes surface area of electrode increase so as to raise electric capacity of battery and performance current collection. Electrode active material ordered arrangement in holes is in favor of migration of lithium ion. In the invention, holes are in small size. Thus, filled electrode active material is not easy to escape from current collection body. The invention also discloses lithium secondary battery possessing porous electrode.
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Description

【Technical field】

[0001] The present invention relates to lithium secondary batteries, in particular lithium secondary batteries having porous electrodes. 【Background technique】

[0002] A battery is a device that converts chemical energy into electrical energy. Battery products have developed from early lead-acid batteries, nickel-cadmium batteries, and nickel-metal hydride batteries to current lithium batteries. Among them, nickel-cadmium batteries are gradually replaced by lithium batteries due to environmental pollution problems. At present, lithium batteries are divided into primary lithium batteries and rechargeable lithium batteries. Rechargeable lithium batteries are lithium secondary batteries. The biggest difference from traditional batteries is that they use organic solutions instead of aqueous solutions as electrolytes.

[0003] Lithium secondary batteries are used in a wide range of applications, mainly including consumer electronic products (Consumer Electroni...

Claims

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