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Kneading device and kneading method for electricity storage material

A stirring device and stirring time technology, applied in the direction of mixers with rotating stirring devices, mixer accessories, chemical instruments and methods, etc., can solve problems such as difficult to obtain battery performance

Active Publication Date: 2014-03-12
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to obtain good battery performance only by managing the viscosity of the slurry

Method used

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  • Kneading device and kneading method for electricity storage material
  • Kneading device and kneading method for electricity storage material
  • Kneading device and kneading method for electricity storage material

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Embodiment Construction

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0018] The stirring device for an electricity storage material of the present embodiment constitutes, for example, a device for manufacturing electrodes (a positive electrode and a negative electrode) of a lithium ion secondary battery. Electrodes for lithium-ion secondary batteries are manufactured by coating a slurry of an active material as an electricity storage material on a base material such as aluminum foil or copper foil, and then drying it. A slurry of the active material is produced by stirring a solid component such as a powder of the active material in a liquid component. The stirring device of this embodiment is a device for producing a slurry of an active material. As a specific example of the active material, in the case of a positive electrode, there are N-methylpyrrolidone as a liquid component, active materials such as lithium nickel oxide as a solid...

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PUM

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Abstract

A kneading device includes an index setting portion (61) that sets an index for kneading based on a motion energy of particles of an electricity storage material, a mean free path of the particles of the electricity storage material, and a kneading time for the electricity storage material, a condition setting portion (62) that sets a condition for the kneading based on the set index for the kneading, and a kneading control portion (63) that controls the kneading of the electricity storage material in accordance with the set condition for the kneading.

Description

[0001] This application claims priority to Japanese Patent Application No. 2012-184010 published on August 23, 2012, including its specification, drawings and abstract, which are incorporated herein by reference in their entirety. technical field [0002] The invention relates to a stirring device and a stirring method for stirring electric storage materials. Background technique [0003] In recent years, lithium-ion secondary batteries have been used in hybrid vehicles, electric vehicles, and the like. The electrodes of lithium-ion secondary batteries are manufactured by coating a slurry of an active material (electricity storage material) on a substrate such as aluminum foil and drying it. The slurry of the active material is produced by stirring a solid component such as a powder of the active material in a liquid component. [0004] Japanese Patent Application Laid-Open No. 5-54886 describes that a fluid energy milling device is used to impart predetermined kinetic ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/16B01F27/93H01M4/04
CPCH01M4/04B01F15/00383B01F15/00253B01F15/00409H01M4/139B01F15/00123B01F2215/0409B01F3/1221B01F7/00766H01G11/38H01G11/86Y02T10/70Y02E60/10B01F23/53B01F27/2711B01F35/221421B01F35/22161B01F35/2209B01F35/22Y02E60/13B01F35/20
Inventor 三尾巧美松浦隆志西幸二深谷佳文
Owner JTEKT CORP