MA71202A1 - Précurseur de Matériau de Cathode, Matériau de Cathode Monocristallin et leur Méthode de Préparation, et Batterie Lithium-ion. - Google Patents

Précurseur de Matériau de Cathode, Matériau de Cathode Monocristallin et leur Méthode de Préparation, et Batterie Lithium-ion.

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Publication number
MA71202A1
MA71202A1 MA71202A MA71202A MA71202A1 MA 71202 A1 MA71202 A1 MA 71202A1 MA 71202 A MA71202 A MA 71202A MA 71202 A MA71202 A MA 71202A MA 71202 A1 MA71202 A1 MA 71202A1
Authority
MA
Morocco
Prior art keywords
cathode material
lithium
preparation
ion battery
crystal cathode
Prior art date
Application number
MA71202A
Other languages
English (en)
Inventor
Youyuan HUANG
Shunyi Yang
Yu Zheng
Guoxue Liu
Jiping WAN
Xiangxiang RAO
Xiaozhen WU
Original Assignee
Btr Nano Tech Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Btr Nano Tech Co., Ltd. filed Critical Btr Nano Tech Co., Ltd.
Publication of MA71202A1 publication Critical patent/MA71202A1/fr

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    • H—ELECTRICITY
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C—CHEMISTRY; METALLURGY
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    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
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    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
    • C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
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    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
    • C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
    • C01G53/502—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt
    • C01G53/504—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt with the molar ratio of nickel with respect to all the metals other than alkali metals higher than or equal to 0.5, e.g. Li(MzNixCoyMn1-x-y-z)O2 with x ≥ 0.5
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    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
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  • Electrochemistry (AREA)
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Abstract

La présente invention concerne un précurseur de matériau de cathode, un matériau de cathode monocristallin et leur méthode de préparation, ainsi qu'une batterie lithium-ion. La formule chimique générale du matériau de cathode monocristallin est LixNiaCobMncNdO2, où 0.98≤x≤1.1, 0.50≤a≤0.98, 0＜b≤0.20, 0＜c≤0.30, 0≤d≤0.10, a+b+c+d=1, et N comprend au moins un des éléments suivants : Al, Ti, Zr, Mg, Sr, Ba, Ca, Nb, W, Sb, Ta, Sn ou Y ; un écart type de la teneur massique de chaque élément de Ni, Co et Mn dans le matériau de cathode monocristallin est ≤ 0.03 ; et la contrainte de réseau est ε < 0.2 %. Selon le matériau de cathode monocristallin fourni dans cette invention, la faible contrainte de réseau permet de réduire les barrières de diusion des ions lithium entre les cristaux, ce qui permet au matériau de présenter une faible résistance à la décharge (DCR) et de bonnes performances en termes de vitesse ; la génération de microfissures peut également être inhibée, améliorant ainsi les performances cycliques du matériau.
MA71202A 2023-10-13 2025-03-26 Précurseur de Matériau de Cathode, Matériau de Cathode Monocristallin et leur Méthode de Préparation, et Batterie Lithium-ion. MA71202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311331910.3A CN117457890B (zh) 2023-10-13 2023-10-13 正极材料前驱体、单晶正极材料及制备方法、锂离子电池
PCT/CN2024/122465 WO2025077631A1 (fr) 2023-10-13 2024-09-29 Précurseur de matériau d'électrode positive, matériau d'électrode positive monocristallin et son procédé de préparation, et batterie au lithium

Publications (1)

Publication Number Publication Date
MA71202A1 true MA71202A1 (fr) 2025-12-31

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MA71202A MA71202A1 (fr) 2023-10-13 2025-03-26 Précurseur de Matériau de Cathode, Matériau de Cathode Monocristallin et leur Méthode de Préparation, et Batterie Lithium-ion.

Country Status (7)

Country Link
US (1) US20250163611A1 (fr)
EP (1) EP4576259A4 (fr)
JP (1) JP2026514541A (fr)
KR (1) KR20250044788A (fr)
CN (2) CN117457890B (fr)
MA (1) MA71202A1 (fr)
WO (1) WO2025077631A1 (fr)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
CN117457890B (zh) * 2023-10-13 2025-04-01 深圳市贝特瑞纳米科技有限公司 正极材料前驱体、单晶正极材料及制备方法、锂离子电池
CN121642092A (zh) * 2024-08-28 2026-03-10 珠海冠宇电池股份有限公司 一种锂离子二次电池
KR20260060719A (ko) * 2024-10-25 2026-05-06 주식회사 에코프로비엠 양극 활물질 및 이를 포함하는 리튬 이차전지
CN121215750A (zh) * 2024-12-26 2025-12-26 深圳市贝特瑞纳米科技有限公司 正极材料和锂离子电池
KR20260103473A (ko) * 2024-12-26 2026-07-03 에스케이온 주식회사 리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지
CN120511292B (zh) * 2025-07-18 2025-10-10 湖南长远锂科新能源有限公司 镍锰酸锂正极材料及其制备方法、正极和锂离子电池

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Publication number Priority date Publication date Assignee Title
JP2010219065A (ja) * 2010-06-21 2010-09-30 Ngk Insulators Ltd 正極活物質及びリチウム二次電池
WO2021042983A1 (fr) * 2019-09-02 2021-03-11 宁德时代新能源科技股份有限公司 Matériau actif d'électrode positive et son procédé de préparation, plaque d'électrode positive, batterie secondaire au lithium-ion et module de batterie la comprenant, bloc-batterie et dispositif

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