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1. (WO2013122352) LITHIUM SECONDARY BATTERY HAVING ANODE CONTAINING AQUEOUS BINDER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/122352 International Application No.: PCT/KR2013/000962
Publication Date: 22.08.2013 International Filing Date: 07.02.2013
IPC:
H01M 4/62 (2006.01) ,C08L 9/06 (2006.01) ,C08L 1/08 (2006.01) ,H01M 4/583 (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
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
06
Copolymers with styrene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1
Compositions of cellulose, modified cellulose, or cellulose derivatives
08
Cellulose derivatives
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
Applicants:
주식회사 엘지화학 LG CHEM, LTD. [KR/KR]; 서울시 영등포구 여의도동 20번지 20, Yoido-dong Youngdungpo-gu Seoul 150-721, KR
Inventors:
구창완 KOO, Chang-Wan; KR
안병훈 AHN, Byoung Hoon; KR
배준성 BAE, Joon Sung; KR
정재빈 CHUNG, Jae Bin; KR
Agent:
손창규 SOHN, Chang Kyu; 서울시 강남구 역삼1동 642-16번지 성지하이츠2차빌딩 1403호 1403, Seongji Heights 2-cha Bldg. 642-16, Yoksam 1-dong Kangnam-gu Seoul 135-910, KR
Priority Data:
10-2012-001564516.02.2012KR
Title (EN) LITHIUM SECONDARY BATTERY HAVING ANODE CONTAINING AQUEOUS BINDER
(FR) BATTERIE SECONDAIRE AU LITHIUM ÉQUIPÉE AVEC UNE ANODE COMPRENANT UN LIANT AQUEUX
(KO) 수계 바인더를 포함하는 음극을 구비한 리튬 이차전지
Abstract:
(EN) The present invention relates to a lithium secondary battery, comprising: an anode on which an anode mixture containing an anode active material is coated; a cathode on which a cathode mixture containing a cathode active material is coated; and a non-aqueous electrolyte, wherein the anode mixture comprises as aqueous binders: a carboxyl methyl cellulose (CMC) in which the degree of substitution of carboxymethyl groups (-CH2CO2H) for hydroxyl groups (-OH) is 0.7 to 1.2, and of which the molecular weight (Mn) is 500,000 to 900,000, and the pH is 6.5 to 8.0; and a styrene-butadiene rubber (SBR) of which the grain size is 90 to 150 nm and tensile strength is 90 to 160 kgf. The anode has a coated amount of electrode of 10 to 20 mmg/cm2, the processability of the electrode is enhanced, and a swelling phenomenon is improved.
(FR) La présente invention concerne une batterie secondaire au lithium, comprenant : une anode sur laquelle une matière d'anode ayant une matière active d'anode est appliquée en revêtement ; une cathode sur laquelle une matière de cathode ayant une matière active de cathode est appliquée en revêtement ; et un électrolyte non aqueux, dans lequel la matière d'anode comprend : une carboxyl méthyl cellulose (CMC) dans laquelle un degré de substitution d'un groupe hydroxyle (-OH) par un groupe carboxyméthyle (-CH2CO2H), comme liant aqueux, est de 0,7 à 1,2, la masse moléculaire (Mn) est de 500 000 à 900 000 et le pH est de 6,5 à 8,0 ; et un caoutchouc styrène-butadiène (SBR) dans lequel une dimension de grain est de 90 à 150 nm et la résistance à la traction est de 90 à 160 kgf, l'anode a une quantité appliquée en revêtement d'électrode de 10 à 20 mmg/cm2, l'aptitude au traitement de l'électrode est accrue, et un phénomène de gonflement est amélioré.
(KO) 본 발명은 음극 활물질을 포함하는 음극 합제가 도포되어 있는 음극, 양극 활물질을 포함하는 양극 합제가 도포되어 있는양극, 및 비수 전해액을 포함하는 리튬 이차전지에 있어서, 상기 음극 합제는 수계 바인더로서 카르복시메틸기(-CH2CO2H)에 의한 히드록시(-OH)기의 치환도가 0.7 내지 1.2이고 분자량(Mn)이 500,000 내지 900,000이며 pH가 6.5 내지 8.0인 CMC(carboxyl methyl cellulose), 및 입경이 90 내지 150 ㎚이고 인장강도가 90 내지 160 kgf인 SBR(styrene-butadiene rubber)를 포함하고, 상기 음극의 전극 코팅량은 10 내지 20 mmg/cm2를 가지고 전극의 공정성을 향상시키면서도 스웰링 현상이 개선된 리튬 이차전지에 관한 것이다.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)