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1. (WO2018225515) NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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Pub. No.: WO/2018/225515 International Application No.: PCT/JP2018/019934
Publication Date: 13.12.2018 International Filing Date: 24.05.2018
IPC:
H01M 4/133 (2010.01) ,H01M 4/13 (2010.01) ,H01M 4/36 (2006.01) ,H01M 4/48 (2010.01) ,H01M 4/587 (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
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
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
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
48
of inorganic oxides or hydroxides
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
58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
583
Carbonaceous material, e.g. graphite-intercalation compounds or CFx
587
for inserting or intercalating light metals
Applicants:
三洋電機株式会社 SANYO ELECTRIC CO., LTD. [JP/JP]; 大阪府大東市三洋町1番1号 1-1, Sanyo-cho, Daito-shi, Osaka 5748534, JP
Inventors:
四宮 拓也 SHINOMIYA Takuya; --
Agent:
徳田 佳昭 TOKUDA Yoshiaki; JP
西田 浩希 NISHIDA Hiroki; JP
Priority Data:
2017-11443109.06.2017JP
Title (EN) NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
(FR) ÉLECTRODE NÉGATIVE POUR BATTERIES SECONDAIRES À ÉLECTROLYTE NON AQUEUX, ET BATTERIE SECONDAIRE À ÉLECTROLYTE NON AQUEUX
(JA) 非水電解質二次電池用負極及び非水電解質二次電池
Abstract:
(EN) The purpose of the present disclosure is to provide a nonaqueous electrolyte secondary battery which has excellent discharge load characteristics and excellent long-term cycle characteristics. A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode (30), a separator and a nonaqueous electrolyte. The negative electrode (30) comprises a negative electrode collector (31) and a negative electrode mixture layer (32) that is formed on the negative electrode collector (31). The negative electrode mixture layer (32) comprises a first mixture layer (33) that is mainly composed of a carbon-coated graphite (35) and a second mixture layer (34) that is mainly composed of a graphite (36); and the first mixture layer (33) is arranged on the surface side of the negative electrode mixture layer (32), while the second mixture layer (34) is arranged on the negative electrode collector (31) side.
(FR) Le but de la présente invention est de fournir une batterie secondaire à électrolyte non aqueux qui présente d'excellentes caractéristiques de charge de décharge et d'excellentes caractéristiques de cycle à long terme. Selon un mode de réalisation de la présente invention, une batterie à électrolyte non aqueux est pourvue d'une électrode positive, d'une électrode négative (30), d'un séparateur et d'un électrolyte non aqueux. L'électrode négative (30) comprend un collecteur d'électrode négative (31) et une couche de mélange d'électrode négative (32) qui est formée sur le collecteur d'électrode négative (31). La couche de mélange d'électrode négative (32) comprend une première couche de mélange (33) qui est principalement composée d'un graphite revêtu de carbone (35) et d'une seconde couche de mélange (34) qui est principalement composée d'un graphite (36) ; et la première couche de mélange (33) est disposée sur le côté de surface de la couche de mélange d'électrode négative (32), tandis que la seconde couche de mélange (34) est disposée sur le côté du collecteur d'électrode négative (31).
(JA) 本開示は放電負荷特性及び長期サイクル特性に優れた非水電解質二次電池を提供することを目的とする。本開示の実施形態の一例である非水電解質二次電池は、正極と、負極(30)と、セパレータと、非水電解質とを備える。負極(30)は、負極集電体(31)と、負極集電体(31)上に形成された負極合剤層(32)とを有する。負極合剤層(32)は、炭素被覆黒鉛(35)を主成分とする第1合剤層(33)と、黒鉛(36)を主成分とする第2合剤層(34)とを含み、第1合剤層(33)が負極合剤層(32)の表面側に配置され、第2合剤層(34)が負極集電体(31側)に配置されている。
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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, JO, 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: Japanese (JA)
Filing Language: Japanese (JA)