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1. (WO2017177808) SILICON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY
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Pub. No.: WO/2017/177808 International Application No.: PCT/CN2017/077784
Publication Date: 19.10.2017 International Filing Date: 23.03.2017
IPC:
H01M 4/36 (2006.01) ,H01M 4/38 (2006.01) ,H01M 4/62 (2006.01) ,H01M 10/0525 (2010.01) ,H01M 4/134 (2010.01)
H ELECTRICITY
01
BASIC 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
H ELECTRICITY
01
BASIC 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
38
of elements or alloys
H ELECTRICITY
01
BASIC 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
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H ELECTRICITY
01
BASIC 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
H ELECTRICITY
01
BASIC 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
134
Electrodes based on metals, Si or alloys
Applicants: HUAWEI TECHNOLOGIES CO., LTD.[CN/CN]; Huawei Administration Building Bantian, Longgang Shenzhen, Guangdong 518129, CN
Inventors: XIA, Shengan; CN
LI, Hui; CN
WANG, Pinghua; CN
Agent: LONGSUN LEAD IP LTD.; Rm.101, Building 3 No. 68 Beiqing Road, Haidian District Beijing 100094, CN
Priority Data:
201610235643.315.04.2016CN
Title (EN) SILICON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY
(FR) MATÉRIAU D'ÉLECTRODE NÉGATIVE À BASE DE SILICIUM, SON PROCÉDÉ DE PRÉPARATION, PLAQUE D'ÉLECTRODE NÉGATIVE ET BATTERIE AU LITHIUM-ION
(ZH) 硅负极材料及其制备方法、负极极片和锂离子电池
Abstract:
(EN) The present application provides a silicon negative electrode material, a preparation method for the silicon negative electrode material, a negative electrode plate, and a lithium-ion battery. The silicon negative electrode material comprises a silicon core, a buffering cladding layer cladding the surface of the silicon core, and a first cladding layer. The present application is characterized in that the first cladding layer is a cladding layer formed by a carbon material, and the carbon material comprises at least one of the following doped elements: N, P, B, S, O, F, Cl and H. Embodiments of the present application improve fast charge performance of a silicon negative electrode material used on a negative electrode of a battery.
(FR) La présente invention concerne un matériau d'électrode négative à base de silicium, un procédé de préparation pour le matériau d'électrode négative à base de silicium, une plaque d'électrode négative et une batterie au lithium-ion. Le matériau d'électrode négative à base de silicium comprend un noyau de silicium, une couche de gaine de tamponnage recouvrant la surface du noyau de silicium, et une première couche de gaine. La présente invention est caractérisée en ce que la première couche de gaine est une couche de gaine formée par un matériau carboné, et le matériau carboné comprend au moins l'un des éléments dopés suivants : N, P, B, S, O, F, Cl et H. Les modes de réalisation de la présente invention améliorent les performances de charge rapide d'un matériau d'électrode négative à base de silicium utilisé sur une électrode négative d'une batterie.
(ZH) 本申请提供了一种硅负极材料,制作硅负极材料的方法,负极极片以及锂离子电池。该硅负极材料包括硅内核以及包覆在硅内核表面的缓冲包覆层和第一包覆层,其特征在于,第一包覆层为碳材料形成的包覆层,碳材料包含下列掺杂元素N、P、B、S、O、F、Cl、H中的至少一种。本申请实施例提高了硅负极材料作为电池负极时的快充性能。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, 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, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, 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)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)