JP2012064571A - 電気機器 - Google Patents
電気機器 Download PDFInfo
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- JP2012064571A JP2012064571A JP2011179362A JP2011179362A JP2012064571A JP 2012064571 A JP2012064571 A JP 2012064571A JP 2011179362 A JP2011179362 A JP 2011179362A JP 2011179362 A JP2011179362 A JP 2011179362A JP 2012064571 A JP2012064571 A JP 2012064571A
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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
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer
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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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
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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
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- H—ELECTRICITY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/491—Porosity
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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
Abstract
【解決手段】従来、用いられていたグラファイト粒子、アセチレンブラック、炭素繊維等の1次元以下の拡がりしか有しない導電助剤に代えて、1乃至10枚のグラフェンよりなる2次元カーボンを導電助剤として用いる。2次元的な広がりを有する導電助剤は、活物質粒子や他の導電助剤と接する確率が向上するため、導電率を改善できる。
【選択図】図1
Description
本実施の形態では、本発明の一態様であるリチウムイオン二次電池の作製方法について説明する。まず、導電助剤として用いる2次元カーボンを作製する。2次元カーボンの作製方法はCVD法(特許文献2)、塗布法(特許文献3)あるいはグラファイトから2次元カーボンを化学的に分離する方法(非特許文献1)を用いればよい。
本発明の電気機器の例として、各種の乾電池、充電池等が挙げられる。これらの正極あるいは負極の導電助剤として、例えば、実施の形態1で示した2次元カーボンを有する導電助剤を用いればよい。
102 上方の炭素繊維
103 2次元カーボン(折り曲げられた場合)
104 2次元カーボン(平面的に拡がった場合)
200 負極集電体
202 負極活物質層
204 負極
206 筐体
210 セパレータ
220 リング状絶縁体
228 正極集電体
230 正極活物質層
232 正極
240 スペーサー
242 ワッシャー
244 筐体
Claims (4)
- 活物質粒子と、
バインダーと、
1乃至100枚のグラフェンよりなる2次元カーボンを有する導電助剤と、
が混合されて形成された電極を有する電気機器。 - 請求項1において、
前記2次元カーボンの面積の平方根は、100nm以上100μm以下であることを特徴とする電気機器。 - 請求項1において、
前記2次元カーボンの面積の平方根は、活物質粒子の粒径の平均値の1倍以上であることを特徴とする電気機器。 - 請求項1において、前記活物質粒子はその表面にカーボンがコーティングされていることを特徴とする電気機器。
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JP2011179362A JP2012064571A (ja) | 2010-08-19 | 2011-08-19 | 電気機器 |
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JP2010183888 | 2010-08-19 | ||
JP2010183888 | 2010-08-19 | ||
JP2011179362A JP2012064571A (ja) | 2010-08-19 | 2011-08-19 | 電気機器 |
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JP2016004094A Division JP6113309B2 (ja) | 2010-08-19 | 2016-01-13 | 電極の作製方法 |
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JP2012064571A true JP2012064571A (ja) | 2012-03-29 |
JP2012064571A5 JP2012064571A5 (ja) | 2014-09-18 |
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JP2011179362A Withdrawn JP2012064571A (ja) | 2010-08-19 | 2011-08-19 | 電気機器 |
JP2016004094A Active JP6113309B2 (ja) | 2010-08-19 | 2016-01-13 | 電極の作製方法 |
JP2017048163A Expired - Fee Related JP6456994B2 (ja) | 2010-08-19 | 2017-03-14 | 電極導電材用2次元カーボン膜の作製方法 |
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JP2016004094A Active JP6113309B2 (ja) | 2010-08-19 | 2016-01-13 | 電極の作製方法 |
JP2017048163A Expired - Fee Related JP6456994B2 (ja) | 2010-08-19 | 2017-03-14 | 電極導電材用2次元カーボン膜の作製方法 |
Country Status (7)
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US (2) | US20120045692A1 (ja) |
JP (3) | JP2012064571A (ja) |
KR (1) | KR101892984B1 (ja) |
CN (2) | CN103053055B (ja) |
DE (1) | DE112011102750T5 (ja) |
TW (1) | TWI597888B (ja) |
WO (1) | WO2012023464A1 (ja) |
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JP2014029847A (ja) * | 2012-06-29 | 2014-02-13 | Semiconductor Energy Lab Co Ltd | 二次電池 |
JP2014225445A (ja) * | 2013-04-19 | 2014-12-04 | 株式会社半導体エネルギー研究所 | 二次電池およびその作製方法 |
CN104641500A (zh) * | 2012-06-20 | 2015-05-20 | 卡博特公司 | 包含石墨烯的电极配制物 |
JP2015156358A (ja) * | 2014-02-20 | 2015-08-27 | 深▲セン▼市貝特瑞新能源材料股▲ふん▼有限公司 | グラフェン基複合負極材料の製造方法及び製造された負極材料とリチウムイオン二次電池 |
US9252419B2 (en) | 2011-09-09 | 2016-02-02 | Semiconductor Energy Laboratory Co., Ltd. | Positive electrode for lithium secondary battery, manufacturing method thereof, and lithium secondary battery |
US9373834B2 (en) | 2011-12-16 | 2016-06-21 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming positive electrode for lithium-ion secondary battery |
US9385366B2 (en) | 2012-08-27 | 2016-07-05 | Semiconductor Energy Laboratory Co., Ltd. | Positive electrode for secondary battery, secondary battery, and method for fabricating positive electrode for secondary battery |
JP2017103257A (ja) * | 2010-08-19 | 2017-06-08 | 株式会社半導体エネルギー研究所 | 2次元カーボン膜の作製方法 |
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Also Published As
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US20140370184A1 (en) | 2014-12-18 |
TWI597888B (zh) | 2017-09-01 |
JP2016105409A (ja) | 2016-06-09 |
KR101892984B1 (ko) | 2018-08-30 |
JP6456994B2 (ja) | 2019-01-23 |
CN106207082A (zh) | 2016-12-07 |
TW201244235A (en) | 2012-11-01 |
KR20120018075A (ko) | 2012-02-29 |
JP2017103257A (ja) | 2017-06-08 |
WO2012023464A1 (en) | 2012-02-23 |
JP6113309B2 (ja) | 2017-04-12 |
US10044027B2 (en) | 2018-08-07 |
CN103053055A (zh) | 2013-04-17 |
DE112011102750T5 (de) | 2013-07-04 |
US20120045692A1 (en) | 2012-02-23 |
CN103053055B (zh) | 2016-10-12 |
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