Nickel compound hydroxide and method for producing same, positive pole active substance for nonaqueous electrolyte secondary cell and method for producing same, and nonaqueous electrolyte secondary cell

A composite hydroxide and cathode active material technology, which is applied in the direction of secondary batteries, nickel compounds, battery electrodes, etc., can solve the problem of battery capacity reduction, failure to consider the particle size and particle size distribution of lithium composite oxides, and the selective degradation of fine particles And other issues
CN104136376AActive Publication Date: 2014-11-05SUMITOMO METAL MINING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUMITOMO METAL MINING CO LTD
Publication Date
2014-11-05

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Abstract

Provided is a lithium composite oxide having a uniform and suitable particle size and high specific surface area due to a hollow structure that can be produced on an industrial scale. A nickel composite hydroxide as a raw material thereof is obtained controlling the particle size distribution of the nickel composite hydroxide, the nickel composite hydroxide having a structure comprising a center section that comprises minute primary particles, and an outer-shell section that exists on the outside of the center section and comprises plate shaped primary particles that are larger than the primary particles of the center section, by a nucleation process and a particle growth process that are separated by controlling the pH during crystallization, and by controlling the reaction atmosphere in each process and the manganese content in a metal compound that is supplied in each process.
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Description

technical field

[0001] The present invention relates to a nickel composite hydroxide and a manufacturing method thereof, a positive electrode active material for a non-aqueous electrolyte secondary battery using the composite hydroxide as a raw material and a manufacturing method thereof, and the positive electrode active material for a non-aqueous electrolyte secondary battery Substances are used as positive electrode materials for non-aqueous electrolyte secondary batteries. Background technique

[0002] In recent years, along with the popularization of portable electronic devices such as mobile phones and notebook personal computers, the development of small and lightweight secondary batteries with high energy density has been eagerly expected. In addition, as batteries for electric vehicles typified by hybrid vehicles, development of high-output secondary batteries is highly expected. As a non-aqueous electrolyte secondary battery satisfying the above requirements, ther...

Claims

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