KR102210836B1 - 전극용 결합제 조성물 및 그의 제조 방법 - Google Patents
전극용 결합제 조성물 및 그의 제조 방법 Download PDFInfo
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- KR102210836B1 KR102210836B1 KR1020157035907A KR20157035907A KR102210836B1 KR 102210836 B1 KR102210836 B1 KR 102210836B1 KR 1020157035907 A KR1020157035907 A KR 1020157035907A KR 20157035907 A KR20157035907 A KR 20157035907A KR 102210836 B1 KR102210836 B1 KR 102210836B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/14—Copolymers of styrene with unsaturated esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/10—Latex
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
- C09J101/26—Cellulose ethers
- C09J101/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
- C09J101/26—Cellulose ethers
- C09J101/28—Alkyl ethers
- C09J101/284—Alkyl ethers with hydroxylated hydrocarbon radicals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
- C09J101/26—Cellulose ethers
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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Abstract
Description
도 2는, 전극의 제작에 사용하기 위한 슬러리의 제조 방법에 대한, 또 다른 실시양태에 따른 개략도이다.
도 3은, 전극의 제작에 사용하기 위한 슬러리의 제조 방법에 대한, 추가의 실시양태에 따른 개략도이다.
도 4는, 하기 실시예 1 내지 4에 기재된 바와 같은, 재분산가능한 분말 또는 스티렌 부타디엔 라텍스 에멀젼을 함유하는 슬러리 조성물의 점도를 비교하는 그래프 표시이다.
도 5는, 하기 실시예 7 내지 12에 기재된 바와 같은, 재분산가능한 분말 또는 스티렌 부타디엔 라텍스 에멀젼을 함유하는 슬러리 조성물의 점도를 비교하는 그래프 표시이다.
도 6는, 하기 실시예 13 내지 18에 기재된 바와 같은, 상이한 카르복시메틸 셀룰로스를 함유하는 슬러리 조성물의 점도를 비교하는 그래프 표시이다.
도 7은, 하기 실시예 17 내지 22에 기재된 바와 같은, 상이한 카르복시메틸 셀룰로스를 함유하는 슬러리 조성물의 점도를 비교하는 그래프 표시이다.
도 8은, 하기 기재된 바와 같은, 실시예 17 내지 24에 대한 접착력 데이터의 그래프 표시이다.
도 9는, 하기 기재된 바와 같은, 0.05C 레이트(rate)에서의 전압 프로파일을 나타내는 샘플 A 내지 F (35 ㎛ 애노드 필름 두께)에 대한 전기화학적 성능의 그래프 표시이다.
도 10은, 하기 기재된 바와 같은, 0.05C 레이트에서의 전압 프로파일을 나타내는 샘플 A 내지 F (70 ㎛ 애노드 필름 두께)에 대한 전기화학적 성능의 그래프 표시이다.
도 11은, 하기 기재된 바와 같은, 샘플 A 내지 F (35 ㎛ 애노드 필름 두께)에 대한 100 사이클 후의 용량 유지 및 쿨롱 효율 성능의 그래프 표시이다.
도 12는, 하기 기재된 바와 같은, 샘플 A 내지 F (70 ㎛ 애노드 필름 두께)에 대한 100 사이클 후의 용량 유지 및 쿨롱 효율 성능의 그래프 표시이다.
도 13은, 하기 기재된 바와 같은, 레이트 당 5 사이클 동안 0.05C, 0.2C, 및 0.5C의 레이트에서의 샘플 A 내지 F의 용량 유지에 의해 측정된, 샘플 A 내지 F (70 ㎛ 애노드 필름 두께)에 대한 레이트 성능(rate capability)의 그래프 표시이다.
도 14는, 하기 기재된 바와 같은, 샘플 A 내지 F (70 ㎛ 애노드 필름 두께)의 임피던스의 그래프 표시이다.
도 15는, 아쿠(Aqu) D-5283 및 각종 RDP 결합제를 갖는 SiOx/흑연 (92/5) 애노드 (100/0.66/1.2)의 사이클 데이터의 충전 용량의 그래프 표시이다.
도 16은, 아쿠 D-5283 및 각종 RDP 결합제를 갖는 SiOx/흑연 (92/5) 애노드 (100/0.66/1.2)의 사이클 데이터의 방전 용량의 그래프 표시이다.
Claims (61)
- (i) 카르복시메틸 히드록시에틸 셀룰로스를 포함하는 이온화가능한 수용성 중합체; 및
(ii) - 폴리비닐 알콜, 폴리비닐 아세테이트, 히드록시알킬 셀룰로스 중합체 및 그의 조합으로 이루어진 군으로부터 선택된 보호 콜로이드,
- 탄산칼슘, 카올린, 실리카, 탄소, 탄산리튬 및 그의 조합으로 이루어진 군으로부터 선택된 케이킹방지제, 및
- 라텍스 중합체
를 포함하는 재분산가능한 분말
을 포함하는, 리튬 이온 전지의 제조에 사용하기 위한 결합제 전구체 조성물. - 제1항에 있어서, 이온화가능한 수용성 중합체가 2 중량% 내지 75 중량% 범위로 결합제 전구체 조성물 중에 존재하고, 재분산가능한 분말이 25 중량% 내지 98 중량% 범위로 결합제 전구체 조성물 중에 존재하는 것인 결합제 전구체 조성물.
- 제1항에 있어서,
- 보호 콜로이드가 0.1 중량% 내지 10 중량% 범위로 재분산가능한 분말 중에 존재하거나;
- 케이킹방지제가 1 중량% 내지 35 중량% 범위로 재분산가능한 분말 중에 존재하거나; 또는
- 라텍스 중합체가 30 중량% 내지 98.9 중량% 범위로 재분산가능한 분말 중에 존재하는 것인,
결합제 전구체 조성물. - 삭제
- 제1항에 있어서, 라텍스 중합체가 스티렌 부타디엔, 비닐 아세테이트 에틸렌, 스티렌 아크릴, 비닐 아크릴, 에틸렌 비닐베르사테이트 및 그의 조합으로 이루어진 군으로부터 선택된 것인 결합제 전구체 조성물.
- 제1항에 있어서, 재분산가능한 분말이 입자 형태로 존재하고, 상기 입자의 평균 직경이 500 ㎛ 미만인 결합제 전구체 조성물.
- 제1항 내지 제3항, 제5항 및 제6항 중 어느 한 항에 있어서, 전극 활성 물질을 추가로 포함하는 결합제 전구체 조성물.
- 제7항에 있어서,
- 이온화가능한 수용성 중합체가 0.25 중량% 내지 2.25 중량% 범위로 결합제 전구체 조성물 중에 존재하고,
- 재분산가능한 분말이 0.25 중량% 내지 3.5 중량% 범위로 결합제 전구체 조성물 중에 존재하고,
- 전극 활성 물질이 94.25 중량% 내지 99.5 중량% 범위로 결합제 전구체 조성물 중에 존재하는 것인,
결합제 전구체 조성물. - 제7항에 있어서, 전극 활성 물질이 1) 탄소질 물질, 2) 규소계 합금, 3) 탄소질 물질, 및 Al, Ag, Bi, In, Ge, Mg, Pb, Si, Sn, Ti 및 그의 조합으로 이루어진 군으로부터 선택된 금속을 포함하는 복합 컴파운드, 4) 리튬 복합 금속 산화물, 5) 리튬-함유 질화물, 및 6) 그의 조합으로 이루어진 군으로부터 선택된 애노드 활성 물질인 결합제 전구체 조성물.
- 제7항에 있어서, 전극 활성 물질이 리튬-함유 전이 금속 산화물로 이루어진 군으로부터 선택된 캐소드 활성 물질인 결합제 전구체 조성물.
- 제7항의 결합제 전구체 조성물을 물에 첨가함으로써 형성된 수성 슬러리 조성물.
- 제11항에 있어서,
- 이온화가능한 수용성 중합체가 건조 중량 기준으로 0.25% 내지 2.25% 범위로 결합제 전구체 조성물 중에 존재하고,
- 재분산가능한 분말이 건조 중량 기준으로 0.25% 내지 3.5% 범위로 결합제 전구체 조성물 중에 존재하고,
- 전극 활성 물질이 건조 중량 기준으로 94.25% 내지 99.5% 범위로 결합제 전구체 조성물 중에 존재하는 것인,
수성 슬러리 조성물. - 제11항에 있어서,
- 이온화가능한 수용성 중합체가 건조 중량 기준으로 0.25% 내지 2.25% 범위로 슬러리 중에 존재하고,
- 보호 콜로이드가 건조 중량 기준으로 0.05% 내지 0.2% 범위로 슬러리 중에 존재하고,
- 케이킹방지제가 건조 중량 기준으로 0.1% 내지 0.5% 범위로 슬러리 중에 존재하고,
- 라텍스 중합체가 건조 중량 기준으로 0.5% 내지 4% 범위로 슬러리 중에 존재하고,
- 전극 활성 물질이 건조 중량 기준으로 94.25% 내지 99.1% 범위로 슬러리 중에 존재하는 것인,
수성 슬러리 조성물. - 제11항에 있어서, 25℃에서 10 s-1 내지 40 s-1 범위의 전단 속도에서 1,000 cps 내지 15,000 cps 범위의 브룩필드(Brookfield) 점도를 갖는 수성 슬러리 조성물.
- (1) 전극 활성 물질, 및
(2) - 카르복시메틸 히드록시에틸 셀룰로스를 포함하는 이온화가능한 수용성 중합체,
- 폴리비닐 알콜, 폴리비닐 아세테이트, 히드록시알킬 셀룰로스 중합체 및 그의 조합으로 이루어진 군으로부터 선택된 보호 콜로이드,
- 탄산칼슘, 카올린, 실리카, 탄소, 탄산리튬 및 그의 조합으로 이루어진 군으로부터 선택된 케이킹방지제, 및
- 라텍스 중합체
를 포함하는 결합제
를 포함하는 필름; 및
집전체
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CA2912212A1 (en) | 2014-11-27 |
JP2016521907A (ja) | 2016-07-25 |
EP4350815A2 (en) | 2024-04-10 |
JP6550377B2 (ja) | 2019-07-24 |
US20140349184A1 (en) | 2014-11-27 |
EP2999759A1 (en) | 2016-03-30 |
CN105246998A (zh) | 2016-01-13 |
HUE066219T2 (hu) | 2024-07-28 |
ES2974524T3 (es) | 2024-06-27 |
CN105246998B (zh) | 2017-11-17 |
US11502301B2 (en) | 2022-11-15 |
WO2014190059A1 (en) | 2014-11-27 |
PL2999759T3 (pl) | 2024-06-03 |
EP4350815A3 (en) | 2024-05-15 |
KR20160014655A (ko) | 2016-02-11 |
CA2912212C (en) | 2019-09-24 |
EP2999759B1 (en) | 2024-02-14 |
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