BR0210308A - Célula eletroquìmica - Google Patents

Célula eletroquìmica

Info

Publication number
BR0210308A
BR0210308A BR0210308-7A BR0210308A BR0210308A BR 0210308 A BR0210308 A BR 0210308A BR 0210308 A BR0210308 A BR 0210308A BR 0210308 A BR0210308 A BR 0210308A
Authority
BR
Brazil
Prior art keywords
cathode
carbon fibers
graphite
based carbon
electrochemical cell
Prior art date
Application number
BR0210308-7A
Other languages
English (en)
Inventor
Shuming Zeng
Original Assignee
Gillette Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gillette Co filed Critical Gillette Co
Publication of BR0210308A publication Critical patent/BR0210308A/pt

Links

Classifications

    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • H01M4/06—Electrodes for primary cells
    • 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
    • H01M4/06—Electrodes for primary cells
    • H01M4/08—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
    • 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
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Primary Cells (AREA)

Abstract

"CéLULA ELETROQUìMICA". Uma célula eletroquímica alcalina que tem um catodo que compreende dióxido de manganês e fibras de carbono à base de piche de mesofase grafitizadas condutoras que têm uma maior área da superfície BET entre aproximadamente 10 e 60 m^ 2^/g, desejavelmente entre aproximadamente 10 e 50 m^ 2^/g, de preferência entre aproximadamente 30 e 50 m^ 2^/g por tratamento térmico entre 800 e 1200<198>C com hidróxido de potássio. As fibras de carbono à base de piche de mesofase grafitizadas tratadas podem compreender entre aproximadamente 1 e 100 por cento em peso do material de grafita total no catodo, tipicamente entre aproximadamente 5 e 50 por cento em peso do grafita total. O grafita total no catodo desejavelmente compreende entre aproximadamente 4 e 10 por cento em peso do catodo. A grafita pode ser misturas das fibras de carbono à base de piche de mesofase grafitizadas com grafita cristalina em flocos que incluem grafitas expandidas. As fibras de carbono à base de piche de mesofase grafitizadas têm um diâmetro médio tipicamente entre aproximadamente 1 e 10 mícrons. O uso das ditas fibras de carbono no catodo aumenta a condutividade do catodo e resulta em melhor desempenho da célula.
BR0210308-7A 2001-06-13 2002-06-06 Célula eletroquìmica BR0210308A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/880,651 US6596438B2 (en) 2001-06-13 2001-06-13 Alkaline cell with improved cathode
PCT/US2002/017746 WO2002101856A2 (en) 2001-06-13 2002-06-06 Alkaline cell with improved cathode

Publications (1)

Publication Number Publication Date
BR0210308A true BR0210308A (pt) 2004-09-28

Family

ID=25376770

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0210308-7A BR0210308A (pt) 2001-06-13 2002-06-06 Célula eletroquìmica

Country Status (7)

Country Link
US (1) US6596438B2 (pt)
EP (1) EP1425812B1 (pt)
JP (1) JP4434727B2 (pt)
CN (1) CN100414748C (pt)
AT (1) ATE535032T1 (pt)
BR (1) BR0210308A (pt)
WO (1) WO2002101856A2 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW533446B (en) * 2000-12-22 2003-05-21 Koninkl Philips Electronics Nv Electroluminescent device and a method of manufacturing thereof
US6863876B2 (en) * 2002-03-08 2005-03-08 The Gillette Company Manganese dioxide for alkaline cells
US20040234860A1 (en) * 2003-05-23 2004-11-25 Deyang Qu Alkaline electrochemical cell having modified graphite additive
CN1303705C (zh) * 2003-06-09 2007-03-07 日立麦克赛尔株式会社 碱性电池用正极和碱性电池
JP4425100B2 (ja) * 2004-04-09 2010-03-03 日立マクセル株式会社 アルカリ電池
KR100599802B1 (ko) * 2004-09-21 2006-07-12 삼성에스디아이 주식회사 이차 전지와 이에 사용되는 전극 조립체 및 집전판
US20100245803A1 (en) * 2005-04-12 2010-09-30 Chromedx Inc. Blood sample holder for spectroscopic analysis
CA2507323A1 (en) * 2005-05-13 2006-11-13 Chromedx Inc. Diagnostic whole blood and plasma apparatus
US7740804B2 (en) * 2005-04-12 2010-06-22 Chromedx Inc. Spectroscopic sample holder
CA2517299A1 (en) * 2005-08-26 2007-02-26 Chromedx Inc. Hollow needle assembly
JP2007291267A (ja) * 2006-04-26 2007-11-08 Teijin Ltd 熱伝導性成形材料及びこれを用いた成形シート
US20080277628A1 (en) * 2007-05-08 2008-11-13 Aruna Zhamu Exfoliated graphite composite compositions for fuel cell flow field plates
JP5240897B2 (ja) * 2007-12-19 2013-07-17 日立マクセル株式会社 アルカリ電池
US9048494B2 (en) * 2010-08-03 2015-06-02 Erachem Comilog, Inc. Electrolytic manganese dioxide improved for tool wear reduction
JP5787689B2 (ja) * 2011-09-16 2015-09-30 ユニ・チャーム株式会社 使い捨て着用物品
JP5334278B1 (ja) * 2012-04-18 2013-11-06 テックワン株式会社 炭素繊維材、炭素繊維材製造方法、前記炭素繊維材を有する材
KR101923466B1 (ko) 2015-09-10 2018-11-30 주식회사 엘지화학 이차전지용 도전재 및 이를 포함하는 이차전지
CN108370032B (zh) * 2015-10-06 2021-10-12 阿克爱科蒂夫有限公司 改进的铅酸蓄电池电极
CN110573580A (zh) * 2017-04-11 2019-12-13 惠普发展公司，有限责任合伙企业 金属合金基材的聚合物涂层
US20210005897A1 (en) * 2018-03-20 2021-01-07 Panasonic Intellectual Property Management Co., Ltd. Alkaline battery

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016247A (en) 1969-03-31 1977-04-05 Kureha Kagaku Kogyo Kabushiki Kaisha Production of carbon shaped articles having high anisotropy
US4005183A (en) 1972-03-30 1977-01-25 Union Carbide Corporation High modulus, high strength carbon fibers produced from mesophase pitch
CA1057729A (en) 1975-03-18 1979-07-03 Harry N.S. Schafer Active carbon
US4082694A (en) 1975-12-24 1978-04-04 Standard Oil Company (Indiana) Active carbon process and composition
US4208267A (en) 1977-07-08 1980-06-17 Exxon Research & Engineering Co. Forming optically anisotropic pitches
US4303631A (en) 1980-06-26 1981-12-01 Union Carbide Corporation Process for producing carbon fibers
GB8724211D0 (en) 1987-10-15 1987-11-18 British Petroleum Co Plc Activation of carbons
US4894296A (en) * 1987-10-27 1990-01-16 Duracell Inc. Cathode for zinc air cells
JP3450894B2 (ja) 1994-03-28 2003-09-29 松下電器産業株式会社 アルカリマンガン電池
US5594060A (en) 1994-07-18 1997-01-14 Applied Sciences, Inc. Vapor grown carbon fibers with increased bulk density and method for making same
US6828064B1 (en) * 1998-01-07 2004-12-07 Eveready Battery Company, Inc. Alkaline cell having a cathode incorporating enhanced graphite
US6589694B1 (en) * 1999-05-14 2003-07-08 Mitsubishi Cable Industries, Ltd. Positive electrode active material, positive electrode active material composition and lithium ion secondary battery
US6251539B1 (en) * 1999-06-14 2001-06-26 The Gillette Company Alkaline cell with improved anode
US6451486B1 (en) * 2000-05-01 2002-09-17 The Gillette Company Battery cathode including a mixture of manganese dioxide with carbon particles of expanded and non-expanded graphite
US6858349B1 (en) * 2000-09-07 2005-02-22 The Gillette Company Battery cathode
US6620550B2 (en) * 2001-01-23 2003-09-16 The Gillette Company Battery cathode and method of manufacture therefor
US20020172867A1 (en) * 2001-04-10 2002-11-21 Anglin David L. Battery cathode

Also Published As

Publication number Publication date
JP4434727B2 (ja) 2010-03-17
EP1425812A2 (en) 2004-06-09
WO2002101856A3 (en) 2004-04-01
EP1425812B1 (en) 2011-11-23
JP2005518633A (ja) 2005-06-23
US20030008211A1 (en) 2003-01-09
US6596438B2 (en) 2003-07-22
WO2002101856A2 (en) 2002-12-19
ATE535032T1 (de) 2011-12-15
CN100414748C (zh) 2008-08-27
CN1698226A (zh) 2005-11-16

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time