Non-aqueous electrolyte rechargeable battery

A non-aqueous electrolyte and secondary battery technology, which is applied in the direction of non-aqueous electrolyte battery electrodes, secondary batteries, battery electrodes, etc., can solve the problems of poor dispersion of carbon conductive agents and the inability to fully exert the performance of active materials, etc., to improve output power The effect of the characteristic

Inactive Publication Date: 2013-04-10
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the electrode produced in this way, there is a problem that the performance of the active material cannot be fully exhibited due to poor dispersion of the carbon conductive agent.

Method used

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  • Non-aqueous electrolyte rechargeable battery
  • Non-aqueous electrolyte rechargeable battery
  • Non-aqueous electrolyte rechargeable battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The battery shown in the above detailed description was used.

[0067] The battery thus manufactured is hereinafter referred to as battery A1 of the present invention.

Embodiment 2

[0069] A test cell was produced in the same manner as in Example 1 above, except that polyoxyethylene alkyl ether (LEOCOL SC-70 manufactured by Lion Corporation) was used as the nonionic surfactant.

[0070] The battery thus manufactured is hereinafter referred to as the battery A2 of the present invention.

Embodiment 3

[0072] In addition to using furnace black as carbon conductive agent, LiNi 0.5 co 0.2 mn 0.3 o 2 Except for the positive electrode active material, a test cell was produced in the same manner as in Example 2 above.

[0073] The battery thus manufactured is hereinafter referred to as the battery A3 of the present invention.

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PUM

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Abstract

The purpose of the present invention is to provide a non-aqueous electrolyte rechargeable battery and a manufacturing method therefor etc., whereby the dispersion properties of a carbon conductive agent can be dramatically improved, and the battery characteristics can be dramatically improved due to the formation of a network with excellent conductivity. The non-aqueous electrolyte rechargeable battery is manufactured by: mixing a polyvinylpyrrolidone polymer and a polyglycerol-condensed ricinoleate ester as a dispersant in N-methyl-2-pyrrolidone as a dispersion medium, and then adding acetylene black thereto to prepare a carbon slurry; mixing a positive electrode active material with a binding agent in the carbon slurry to prepare a slurry of positive electrode active material; manufacturing a positive electrode (11) using the slurry of positive electrode active material; and then using the positive electrode (11).

Description

technical field [0001] The present invention relates to a carbon slurry and a preparation method thereof, an electrode for a nonaqueous electrolyte secondary battery and a method for producing the same, and a nonaqueous electrolyte secondary battery and a method for producing the same. Background technique [0002] In recent years, the miniaturization and weight reduction of mobile devices such as mobile phones, notebook computers, and PDAs (Personal Digital Assistants) have rapidly progressed. In addition, with the multifunctionalization of these products, power consumption has also increased. The non-aqueous electrolyte secondary batteries used are also required to be lighter in weight and higher in capacity. [0003] In addition, recently, in order to solve environmental problems caused by exhaust gas emitted from vehicles, the development of a hybrid electric vehicle using a gasoline engine and an electric motor of the vehicle is underway. Currently, nickel-hydrogen sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/13H01M4/139
CPCH01M4/0404H01M4/131H01M4/139H01M4/1391H01M4/622H01M4/624Y10T29/49108Y02E60/10Y02P70/50H01M4/62H01M4/13H01M10/049
Inventor 杉森仁德大北一成喜田佳典
Owner SANYO ELECTRIC CO LTD
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