JP2016051704A - 空気二次電池 - Google Patents
空気二次電池 Download PDFInfo
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- JP2016051704A JP2016051704A JP2015167842A JP2015167842A JP2016051704A JP 2016051704 A JP2016051704 A JP 2016051704A JP 2015167842 A JP2015167842 A JP 2015167842A JP 2015167842 A JP2015167842 A JP 2015167842A JP 2016051704 A JP2016051704 A JP 2016051704A
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
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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
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/861—Porous electrodes with a gradient in the porosity
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
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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
【解決手段】空気二次電池10は、酸素含有ガスが供給される正極12と、金属活物質を含む負極14と、前記正極12と前記負極14の間に介在する電解質16とを有する。正極12は、例えば、平均気孔径が互いに相違する第1正極層20及び第2正極層22を備える。放電時、正極12では、前記金属活物質から生じて電解質16を移動した金属イオンと、酸素含有ガス中の酸素とが結合する反応が起こり、金属酸化物が生成する。電解質16に隣接して平均気孔径が小さい第1正極層20は、この金属酸化物を捕捉する。
【選択図】図1
Description
前記正極は、放電時に、該正極に生成する金属酸化物を捕捉する捕捉部を有することを特徴とする。
Li → Li+ + e- …(A)
2(Li+ + e-)+ O2 → Li2O2 …(B)
4(Li+ + e-)+ O2 → 2Li2O …(C)
Li2O2→ 2(Li+ + e-) + O2 …(B’)
2Li2O → 4(Li+ + e-) + O2 …(C’)
14、72…負極 16…電解質
20…第1正極層 22…第2正極層
24…小気孔 26…大気孔
32a、32b、92a、92b…導線 32c…支線
34、84…充放電試験器 44…絶縁層
46…スイッチ 54…気孔
56…凹部 60…セラミックス微粒子
62…金相 64…銀相
70…空気電池 74…セパレータ
76…小気孔正極 78…大気孔正極
80…積層正極 82…ガスフロー電気化学セル
Claims (13)
- 放電時に酸素含有ガス中の酸素を還元する正極と、金属活物質を含む負極と、前記正極と前記負極の間に介在する電解質とを有する空気二次電池において、
前記正極は、放電時に、該正極に生成する金属酸化物を捕捉する捕捉部を有することを特徴とする空気二次電池。 - 請求項1記載の空気二次電池において、前記正極は、前記電解質に接触して前記捕捉部となる第1正極層と、前記電解質から離間した第2正極層とを有し、
前記第1正極層及び前記第2正極層が多孔質体からなり、且つ前記第2正極層内の気孔の平均気孔径が前記第1正極層内の気孔の平均気孔径に比して大きく、
前記第2正極層での酸素還元反応の電位が、前記第1正極層での酸素還元反応の電位に比して大きいことを特徴とする空気二次電池。 - 請求項2記載の空気二次電池において、放電時に前記第2正極層に生成して該第2正極層から移動した金属酸化物を、前記第1正極層の気孔で捕捉することを特徴とする空気二次電池。
- 請求項2又は3記載の空気二次電池において、前記第1正極層の平均気孔径が100nm未満であることを特徴とする空気二次電池。
- 請求項2〜4のいずれか1項に記載の空気二次電池において、前記第1正極層が前記第2正極層を囲繞していることを特徴とする空気二次電池。
- 請求項2〜5のいずれか1項に記載の空気二次電池において、前記第1正極層と前記第2正極層との間に絶縁層が介在することを特徴とする空気二次電池。
- 請求項6記載の空気二次電池において、充電時に、前記第1正極層及び前記第2正極層の双方が充電器に対して個別に電気的に接続されることを特徴とする空気二次電池。
- 請求項6又は7記載の空気二次電池において、前記絶縁層が高分子材からなることを特徴とする空気二次電池。
- 請求項6又は7記載の空気二次電池において、前記絶縁層が空隙からなることを特徴とする空気二次電池。
- 請求項1記載の空気二次電池において、前記正極の内部に気孔が形成され、前記捕捉部は、前記気孔に連なり且つ該気孔よりも容積が小さい凹部であることを特徴とする空気二次電池。
- 請求項10記載の空気二次電池において、前記金属酸化物の一部が前記凹部内に進入することで、前記凹部で前記金属酸化物を捕捉することを特徴とする空気二次電池。
- 請求項10又は11記載の空気二次電池において、前記凹部は、その内部よりも、前記気孔に連なる開口が狭小であることを特徴とする空気二次電池。
- 請求項1〜12のいずれか1項に記載の空気二次電池において、前記負極の前記金属活物質がリチウムであることを特徴とする空気二次電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462043656P | 2014-08-29 | 2014-08-29 | |
US62/043,656 | 2014-08-29 |
Publications (2)
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JP2016051704A true JP2016051704A (ja) | 2016-04-11 |
JP6466288B2 JP6466288B2 (ja) | 2019-02-06 |
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JP2015167842A Expired - Fee Related JP6466288B2 (ja) | 2014-08-29 | 2015-08-27 | 空気二次電池 |
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US (1) | US9954262B2 (ja) |
EP (1) | EP2991139B1 (ja) |
JP (1) | JP6466288B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019091679A (ja) * | 2017-11-16 | 2019-06-13 | パナソニックIpマネジメント株式会社 | 空気電池用正極及び空気電池 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10411317B2 (en) * | 2017-06-29 | 2019-09-10 | Toyota Research Institute, Inc. | Metal-air battery including passivation layer formed on metal anode |
CN109244475A (zh) | 2018-11-05 | 2019-01-18 | 宁德新能源科技有限公司 | 电化学装置及包含其的电子装置 |
KR102610181B1 (ko) | 2018-11-30 | 2023-12-04 | 퓨얼셀 에너지, 인크 | 향상된 co2 이용률로 작동되는 연료 전지를 위한 촉매 패턴의 개질 |
KR102610184B1 (ko) | 2018-11-30 | 2023-12-04 | 퓨얼셀 에너지, 인크 | 용융 탄산염 연료 전지를 위한 연료 전지 스테이징 |
WO2020112806A1 (en) * | 2018-11-30 | 2020-06-04 | Exxonmobil Research And Engineering Company | Layered cathode for molten carbonate fuel cell |
WO2020112774A1 (en) | 2018-11-30 | 2020-06-04 | Exxonmobil Research And Engineering Company | Elevated pressure operation of molten carbonate fuel cells with enhanced co2 utilization |
US11888187B2 (en) | 2018-11-30 | 2024-01-30 | ExxonMobil Technology and Engineering Company | Operation of molten carbonate fuel cells with enhanced CO2 utilization |
KR20210107700A (ko) | 2018-11-30 | 2021-09-01 | 퓨얼 셀 에너지, 인크 | 심층 co2 포획을 위한 용융 탄산염 연료전지들의 재생성 |
CN111668452B (zh) | 2019-03-06 | 2021-06-04 | 宁德时代新能源科技股份有限公司 | 一种负极及其锂离子二次电池 |
KR20220107183A (ko) | 2019-11-26 | 2022-08-02 | 엑손모빌 테크놀로지 앤드 엔지니어링 컴퍼니 | 높은 전해질 충전 수준을 갖는 용융 탄산염 연료 전지의 작동 |
WO2021107933A1 (en) | 2019-11-26 | 2021-06-03 | Exxonmobil Research And Engineering Company | Fuel cell module assembly and systems using same |
US11978931B2 (en) | 2021-02-11 | 2024-05-07 | ExxonMobil Technology and Engineering Company | Flow baffle for molten carbonate fuel cell |
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EP1113885A4 (en) * | 1998-08-21 | 2004-08-04 | Stanford Res Inst Int | PRINTING ELECTRONIC BOARDS AND COMPONENTS |
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2015
- 2015-08-25 US US14/835,033 patent/US9954262B2/en not_active Expired - Fee Related
- 2015-08-27 JP JP2015167842A patent/JP6466288B2/ja not_active Expired - Fee Related
- 2015-08-28 EP EP15183012.2A patent/EP2991139B1/en not_active Not-in-force
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5064744A (ja) * | 1973-10-12 | 1975-06-02 | ||
US20120270115A1 (en) * | 2004-02-20 | 2012-10-25 | Excellatron Solid State, Llc | Lithium Oxygen Batteries Having a Carbon Cloth Current Collector and Method of Producing Same |
JP2013214383A (ja) * | 2012-04-02 | 2013-10-17 | Sony Corp | 空気電池、空気電池の使用方法および電子機器 |
US20140045080A1 (en) * | 2012-08-10 | 2014-02-13 | Robert Bosch Gmbh | Controlling the Location of Product Distribution and Removal in a Metal/Oxygen Cell |
US20140255799A1 (en) * | 2013-03-08 | 2014-09-11 | Ford Global Technologies, Llc | Lithium-Air Battery Cathodes and Methods of Making the Same |
JP2015141862A (ja) * | 2014-01-30 | 2015-08-03 | シャープ株式会社 | 金属空気電池 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019091679A (ja) * | 2017-11-16 | 2019-06-13 | パナソニックIpマネジメント株式会社 | 空気電池用正極及び空気電池 |
US10700343B2 (en) | 2017-11-16 | 2020-06-30 | Panasonic Intellectual Property Management Co., Ltd. | Positive electrode for air battery |
JP7117662B2 (ja) | 2017-11-16 | 2022-08-15 | パナソニックIpマネジメント株式会社 | 空気電池用正極及び空気電池 |
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Publication number | Publication date |
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EP2991139B1 (en) | 2017-07-05 |
US9954262B2 (en) | 2018-04-24 |
US20160064787A1 (en) | 2016-03-03 |
EP2991139A1 (en) | 2016-03-02 |
JP6466288B2 (ja) | 2019-02-06 |
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