高電圧リチウムニッケルコバルトマンガン酸化物前駆体及びその製造方法、並びに高電圧リチウムニッケルコバルトマンガン酸化物正極材料の製造方法

Title:

Document Type and Number:

Japanese Patent JP7036924

Kind Code:

B2

Abstract:

A high voltage lithium nickel cobalt manganese oxide precursor is provided in the present disclosure. Primary particles of the lithium nickel cobalt manganese oxide precursor are in a clustered "petals" configuration. The "petal" has a sheet shape. A secondary particle of the lithium nickel cobalt manganese oxide precursor has a spherical structure with a loosened interior. A method for making the high voltage lithium nickel cobalt manganese oxide precursor is further provided in the present disclosure. In the method, through the unique design of the reaction atmosphere in combination with advantages of high-low pH phase separation as well as the appropriate matching between the output power and flow rates, the lithium nickel cobalt manganese oxide precursor having "petal-like" and sheet shaped primary particles and spherical and porous secondary particles is made. Compared to the conventional precursor, the primary particle of the present precursor has a unique structure and the secondary particle of the present precursor has a loosened and porous interior, which provide an important guiding significance for a morphology study of small particle sized lithium nickel cobalt manganese oxide precursor and a preparation process optimization. A high voltage lithium nickel cobalt manganese oxide cathode material made from the nickel cobalt manganese oxide precursor has a single-crystal structure.

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Inventors:

▲陳▼ 九▲華▼
黄 ▲敏▼
Wei
▲譚▼ 欣欣
Lee Asahi
Ishikei

Application Number:

JP2020531802A

Publication Date:

March 15, 2022

Filing Date:

April 26, 2018

Export Citation:

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Assignee:

巴斯夫杉杉▲電▼池材料有限公司

International Classes:

H01M4/525; C01G53/00; C30B29/16; H01M4/505

Domestic Patent References:

JP2016011227A

Attorney, Agent or Firm:

Murayama Yasuhiko
Shinya Mihiro
Tatsuhiko Abe

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