1. WO2026174445 - BATTERY CELL, BATTERY APPARATUS AND ELECTRIC DEVICE

Publication Number WO/2026/174445

Publication Date 27.08.2026

International Application No. PCT/CN2025/077999

International Filing Date 19.02.2025

IPC

H01M 4/136 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
13	Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
136	Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy

H01M 4/133 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
13	Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
133	Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx

H01M 4/587 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
36	Selection of substances as active materials, active masses, active liquids
58	of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
583	Carbonaceous material, e.g. graphite-intercalation compounds or CFx
587	for inserting or intercalating light metals

H01M 10/0525 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10	Secondary cells; Manufacture thereof
05	Accumulators with non-aqueous electrolyte
052	Li-accumulators
0525	Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

H01M 4/136 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
13	Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
136	Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy

H01M 4/133 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
13	Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
133	Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx

H01M 4/587 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4	Electrodes
02	Electrodes composed of, or comprising, active material
36	Selection of substances as active materials, active masses, active liquids
58	of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
583	Carbonaceous material, e.g. graphite-intercalation compounds or CFx
587	for inserting or intercalating light metals

H01M 10/0525 2010.1

H	ELECTRICITY
01	ELECTRIC ELEMENTS
M	PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10	Secondary cells; Manufacture thereof
05	Accumulators with non-aqueous electrolyte
052	Li-accumulators
0525	Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

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Applicants

• 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]

Inventors

• 何勇 HE, Yong
• 景二东 JING, Erdong
• 蒋菡 JIANG, Han
• 陈晓 CHEN, Xiao

Agents

• 北京龙双利达知识产权代理有限公司 LONGSUN LEAD IP LTD.

Priority Data

Publication Language Chinese (zh)

Filing Language Chinese (zh)

Designated States

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AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

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Title

(EN) BATTERY CELL, BATTERY APPARATUS AND ELECTRIC DEVICE

(FR) ÉLÉMENT DE BATTERIE, APPAREIL DE BATTERIE ET DISPOSITIF ÉLECTRIQUE

(ZH) 电池单体、电池装置、用电设备

Abstract

(EN) The present invention belongs to the technical field of batteries, and provides a battery cell, a battery apparatus and an electric device. The battery cell comprises a positive electrode sheet, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer provided on at least one side surface of the positive electrode current collector. The positive electrode film layer comprises a positive electrode active material, a first additive, a second additive and a binder, wherein the positive electrode active material comprises a lithium-containing phosphate, the first additive comprises a lithium-containing transition metal oxide, and the additive comprises a nickel-containing metal oxide; and the binder comprises an F element, and the mass content of the F element in the binder is 0.25% to 0.75% on the basis of the total mass of the positive electrode film layer. The technical solution of the present application is beneficial for improving the cycle life of the battery cell.

(FR) La présente demande se rapporte au domaine technique des batteries, et concerne un élément de batterie, un appareil de batterie et un dispositif électrique. L'élément de batterie comprend une feuille d'électrode positive, la feuille d'électrode positive comprenant un collecteur de courant d'électrode positive et une couche de film d'électrode positive disposée sur au moins une surface latérale du collecteur de courant d'électrode positive. La couche de film d'électrode positive comprend un matériau actif d'électrode positive, un premier additif, un second additif et un liant, le matériau actif d'électrode positive comprenant un phosphate contenant du lithium, le premier additif comprenant un oxyde de métal de transition contenant du lithium, et l'additif comprenant un oxyde métallique contenant du nickel ; et le liant comprenant un élément F, et la teneur en masse de l'élément F dans le liant étant de 0,25% à 0,75% sur la base de la masse totale de la couche de film d'électrode positive. La solution technique de la présente demande est avantageuse pour améliorer les performances de cycle de l'élément de batterie.

(ZH) 一种电池单体、电池装置、用电设备，属于电池技术领域。电池单体，包括：正极极片，正极极片包括正极集流体和设置于正极集流体至少一侧表面的正极膜层，正极膜层包括正极活性材料、第一添加剂、第二添加剂和粘结剂；其中，正极活性材料包括含锂磷酸盐，第一添加剂包括含锂过渡金属氧化物，添加剂包括含镍金属氧化物；粘结剂包括F元素，基于正极膜层的总质量计，粘结剂中的F元素的质量含量为0.25％至0.75％。本申请的技术方案有利于提升电池单体的循环寿命。

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