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1. (WO2019050203) ANODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
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Pub. No.: WO/2019/050203 International Application No.: PCT/KR2018/009882
Publication Date: 14.03.2019 International Filing Date: 27.08.2018
IPC:
H01M 4/134 (2010.01) ,H01M 4/133 (2010.01) ,H01M 4/36 (2006.01) ,H01M 4/62 (2006.01) ,H01M 4/1395 (2010.01) ,H01M 4/1393 (2010.01) ,H01M 10/0525 (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
134
Electrodes based on metals, Si 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
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
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
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
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
139
Processes of manufacture
1395
of electrodes based on metals, Si 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
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139
Processes of manufacture
1393
of 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
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
Applicants:
주식회사 엘지화학 LG CHEM, LTD. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336, KR
Inventors:
이주성 LEE, Joo Sung; KR
이희원 LEE, Hee Won; KR
Agent:
특허법인 태평양 BAE, KIM & LEE IP GROUP; 서울시 서초구 강남대로 343, 11층 11th Floor, 343, Gangnam-daero, Seocho-gu, Seoul 06626, KR
Priority Data:
10-2017-011509908.09.2017KR
10-2018-003871703.04.2018KR
Title (EN) ANODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) ANODE POUR BATTERIE RECHARGEABLE AU LITHIUM ET BATTERIE RECHARGEABLE AU LITHIUM LA COMPRENANT
(KO) 리튬 이차전지용 음극, 및 이를 포함하는 리튬 이차전지
Abstract:
(EN) The present invention provides an anode for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same, the anode for a lithium secondary battery comprising: an anode current collector; and an anode active material layer disposed on the anode current collector, wherein the anode active material layer comprises: a graphite-based active material having an average particle diameter (D50) of 5 ㎛ to 50 ㎛; silicon nanoparticles having an average particle diameter (D50) of 70 ㎚ to 300 ㎚; a first conductive material; and two or more kinds of cellulose-based compounds having different weight average molecular weights.
(FR) La présente invention concerne une anode pour une batterie rechargeable au lithium, son procédé de préparation, et une batterie rechargeable au lithium la comprenant, l'anode pour une batterie rechargeable au lithium comprenant : un collecteur de courant d'anode ; et une couche de matériau actif d'anode disposée sur le collecteur de courant d'anode, la couche de matériau actif d'anode comprenant : un matériau actif à base de graphite ayant un diamètre de particule moyen (D50) de 5 µm à 50 µm ; des nanoparticules de silicium ayant un diamètre de particule moyen (D50) de 70 nm à 300 nm ; un premier matériau conducteur ; et deux types ou plus de composés à base de cellulose ayant des masses moléculaires moyennes en poids différentes.
(KO) 본 발명은 음극 집전체; 및 상기 음극 집전체 상에 위치하는 음극 활물질 층을 포함하는 리튬 이차전지용 음극이며, 상기 음극 활물질 층은, 평균 입자 직경(D50)이 5 ㎛ 내지 50 ㎛인 흑연계 활물질; 평균 입자 직경(D50)이 70 ㎚ 내지 300 ㎚인 실리콘 나노 입자; 제1 도전재; 및 중량 평균 분자량이 서로 다른 2종 이상의 셀룰로오스계 화합물을 포함하는 리튬 이차전지용 음극, 이의 제조방법 및 이를 포함하는 리튬 이차전지를 제공한다.
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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, 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: Korean (KO)
Filing Language: Korean (KO)