KR20070098924A - 비수전해질 이차전지 및 그 음극의 제조방법 - Google Patents
비수전해질 이차전지 및 그 음극의 제조방법 Download PDFInfo
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- KR20070098924A KR20070098924A KR1020077018886A KR20077018886A KR20070098924A KR 20070098924 A KR20070098924 A KR 20070098924A KR 1020077018886 A KR1020077018886 A KR 1020077018886A KR 20077018886 A KR20077018886 A KR 20077018886A KR 20070098924 A KR20070098924 A KR 20070098924A
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/134—Electrodes based on metals, Si or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/139—Processes of manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
Claims (8)
- 음극 활물질, 도전제 및 결착제를 포함한 성형 펠릿으로 이루어진 음극, 리튬 이온을 흡장·방출 가능한 양극, 및 리튬 이온 도전성의 비수 전해질을 구비하는 비수전해질 이차전지로서, 상기 음극 활물질이, Si를 주체로 하는 제1의 상(相) 및 천이 금속의 규화물을 포함한 제2의 상을 포함하고, 상기 제1의 상과 상기 제2의 상의 적어도 한쪽이, 비정질 내지 저결정성이며, 상기 음극 활물질의 평균 입자지름(D50)이 0.50∼20㎛이고, 체적 누적 입도 분포의 10%지름(D10) 및 90%지름 (D90)이 각각 0.10∼5.0㎛ 및 5.0∼80㎛인 것을 특징으로 하는 비수 전해질 이차전지.
- 제 1 항에 있어서, 상기 천이 금속이 Ti, Zr, Ni, Cu, 및 Fe로 이루어진 군으로부터 선택되는 적어도 일종인 비수 전해질 이차전지.
- 제 2 항에 있어서, 상기 천이 금속의 규화물이, TiSi2인 비수 전해질 이차전지.
- 제 3 항에 있어서, 상기 음극의 펠릿의 밀도가 1.6∼2.4g/cc인 비수 전해질 이차전지.
- Si분말과 천이 금속 분말과의 혼합물을 메카니컬 얼로링법에 의해, Si를 주체로 한 제1의 상 및 천이 금속의 규화물을 포함한 제2의 상을 포함하고, 상기 제1의 상과 상기 제2의 상의 적어도 한쪽이, 비정질 내지 저결정성인 음극 활물질을 제작하는 공정,매체인 볼을 사용하여, 상기 음극 활물질을 그 평균 입자지름(D50)이 0.50∼20㎛이고, 또한 체적 누적 입도 분포의 10%지름(D10) 및 90%지름(D90)이 각각 0.10∼5.0㎛ 및 5.0∼80㎛가 되도록 습식 분쇄하는 공정, 및 상기 분쇄된 음극 활물질, 도전제 및 결착제를 포함한 음극 재료를 가압 성형하여 음극 펠릿을 얻는 공정을 가지는 것을 특징으로 하는 비수 전해질 이차전지용 음극의 제조 방법.
- 제 5 항에 있어서, 상기 습식 분쇄하는 공정에 이용하는 분산매가 비프로톤성 용매인 비수 전해질 이차전지용 음극의 제조 방법.
- 제 5 항에 있어서, 상기 습식 분쇄하는 공정에 이용하는 분산매가 프로톤성 용매이며, 또한 분쇄 장치가 개방계인 비수 전해질 이차전지용 음극의 제조 방법.
- 제 5 항 내지 제 7 항중의 어느 한 항에 있어서, 상기 도전제가 탄소질 재료이며, 그 전부 또는 일부가, 상기 습식 분쇄하는 공정에 있어서, 상기 음극 활물질과 함께 분쇄되는 비수 전해질 이차전지용 음극의 제조 방법.
Applications Claiming Priority (2)
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JP2005163891 | 2005-06-03 | ||
JPJP-P-2005-00163891 | 2005-06-03 |
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KR20070098924A true KR20070098924A (ko) | 2007-10-05 |
KR100911799B1 KR100911799B1 (ko) | 2009-08-12 |
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KR1020077018886A KR100911799B1 (ko) | 2005-06-03 | 2006-03-29 | 비수전해질 이차전지 및 그 음극의 제조방법 |
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US (1) | US20080113271A1 (ko) |
EP (1) | EP1833109A1 (ko) |
JP (1) | JP5079334B2 (ko) |
KR (1) | KR100911799B1 (ko) |
CN (1) | CN100533821C (ko) |
WO (1) | WO2006129415A1 (ko) |
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-
2006
- 2006-03-29 CN CNB200680002961XA patent/CN100533821C/zh not_active Expired - Fee Related
- 2006-03-29 WO PCT/JP2006/306418 patent/WO2006129415A1/ja active Application Filing
- 2006-03-29 JP JP2006545838A patent/JP5079334B2/ja not_active Expired - Fee Related
- 2006-03-29 EP EP06730366A patent/EP1833109A1/en not_active Withdrawn
- 2006-03-29 KR KR1020077018886A patent/KR100911799B1/ko not_active IP Right Cessation
- 2006-03-29 US US11/793,826 patent/US20080113271A1/en not_active Abandoned
Cited By (3)
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WO2009131303A1 (ko) * | 2008-04-21 | 2009-10-29 | 엘에스엠트론 주식회사 | 2차 전지용 음극 활물질, 이를 포함하는 2차 전지용 전극, 2차 전지 및 그 제조 방법 |
US9373839B2 (en) | 2011-12-13 | 2016-06-21 | Samsung Sdi Co., Ltd. | Negative electrode active material and secondary battery including the same |
US10096825B2 (en) | 2014-12-31 | 2018-10-09 | Samsung Electronics Co., Ltd. | Composite anode active material, preparing method thereof, anode including the composite anode active material, and lithium secondary battery including the anode |
Also Published As
Publication number | Publication date |
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JP5079334B2 (ja) | 2012-11-21 |
CN100533821C (zh) | 2009-08-26 |
EP1833109A1 (en) | 2007-09-12 |
CN101107734A (zh) | 2008-01-16 |
WO2006129415A1 (ja) | 2006-12-07 |
KR100911799B1 (ko) | 2009-08-12 |
JPWO2006129415A1 (ja) | 2008-12-25 |
US20080113271A1 (en) | 2008-05-15 |
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