WO2006082720A1 - 正極およびそれを用いた非水電解質二次電池 - Google Patents
正極およびそれを用いた非水電解質二次電池 Download PDFInfo
- Publication number
- WO2006082720A1 WO2006082720A1 PCT/JP2006/300881 JP2006300881W WO2006082720A1 WO 2006082720 A1 WO2006082720 A1 WO 2006082720A1 JP 2006300881 W JP2006300881 W JP 2006300881W WO 2006082720 A1 WO2006082720 A1 WO 2006082720A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- positive electrode
- secondary battery
- nonaqueous electrolyte
- electrolyte secondary
- potassium
- Prior art date
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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
- H01M4/36—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
-
- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
-
- 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
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- 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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
-
- 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
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- 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
Definitions
- the present invention relates to a positive electrode and a nonaqueous electrolyte secondary battery comprising the positive electrode, the negative electrode and a nonaqueous electrolyte.
- non-aqueous electrolyte secondary batteries that use non-aqueous electrolytes as secondary batteries with high energy density, such as charging and discharging by moving lithium ions between a positive electrode and a negative electrode, are available. Many are used.
- a lithium transition metal composite having a layered structure such as lithium nickelate (LiNiO) or lithium cobaltate (LiCoO) is generally used as a positive electrode.
- An oxide is used, and a carbon material capable of inserting and extracting lithium, a lithium metal, a lithium alloy, or the like is used as the negative electrode (see, for example, Patent Document 1).
- a potential of 4V and a theoretical capacity of about 260mAhZg can be obtained.
- an electrolyte such as lithium tetrafluoroborate (LiBF) or lithium hexafluorophosphate (LiPF) in an organic solvent such as ethylene carbonate or jetyl carbonate.
- LiBF lithium tetrafluoroborate
- LiPF lithium hexafluorophosphate
- Patent Document 1 Japanese Patent Laid-Open No. 2003-151549
- Mn manganese
- nickel or cobalt the capacity of the nonaqueous electrolyte secondary battery is halved.
- LiMnO lithium manganate
- LiMn 2 O 3 Lithium manganate (LiMn 2 O 3) having a channel structure is used. LiMn O above
- LiMnO It changes to LiMn O. Note that the layered structure LiMnO is not chemically stable.
- An object of the present invention is to provide a positive electrode that has low material strength and can sufficiently occlude and release ions.
- Another object of the present invention is to provide an inexpensive non-aqueous electrolyte secondary battery that can be reversibly charged and discharged.
- the positive electrode according to one aspect of the present invention also has an acidic strength including potassium and manganese.
- the positive electrode according to the present invention since the positive electrode also has an acidity containing potassium and manganese, potassium ions are sufficiently occluded and released from the positive electrode. In addition, low cost can be achieved by using abundant potassium.
- the oxide contains K MnO, x is greater than 0 and less than or equal to 1, and y is greater than —0.1 and 0.
- a non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte containing potassium ions. is there.
- non-aqueous electrolyte secondary battery by using a positive electrode made of an oxide containing potassium and manganese, reversible charging / discharging can be performed and low cost can be achieved. it can.
- the negative electrode may have a material force capable of inserting and extracting potassium. In this case, reversible charge / discharge can be reliably performed.
- the negative electrode may contain carbon. Thereby, a high energy density is obtained.
- the non-aqueous electrolyte may contain potassium hexafluorophosphate. In this case, safety is improved.
- the non-aqueous electrolyte is selected from the group consisting of cyclic carbonates, chain carbonates, esters, cyclic ethers, chain ethers, nitriles and amides. May contain two or more. In this case, low cost can be achieved and safety can be improved.
- potassium ions are sufficiently occluded and released from the positive electrode.
- low cost can be achieved by using resource-rich potassium.
- nonaqueous electrolyte secondary battery of the present invention by using a positive electrode made of an oxide containing potassium and manganese, reversible charging / discharging can be performed and abundant in resources. By using potassium, low cost can be achieved.
- FIG. 1 is a perspective view showing a nonaqueous electrolyte secondary battery according to the present embodiment.
- FIG. 2 is a schematic cross-sectional view of the nonaqueous electrolyte secondary battery in FIG.
- FIG. 3 is a graph showing the charge / discharge characteristics of a nonaqueous electrolyte secondary battery.
- the nonaqueous electrolyte secondary battery according to the present embodiment includes a positive electrode, a negative electrode, and a nonaqueous electrolyte.
- K MnO potassium manganate
- positive electrode active material 85 parts by weight of potassium manganate (K MnO) (for example, positive electrode active material)
- the potassium manganate manganic acid having a card number of 160205 in JCPDSOoint Committee on Powder Diffraction Standards) in which X-ray diffraction data of about 6000 kinds of inorganic compounds and organic compounds are recorded. Use potassium.
- the crystal system of potassium manganate with the above card number is disclosed as unknown.
- potassium manganate of card number 160205 potassium manganate of card number 3110 52, monoclinic (b axis) (SG C), potassium manganate and monoclinic crystal of card number 311048 Potassium manganate with card number 441025, 752171 of the system (b axis) (SG P21 / m) can be used.
- the positive electrode material is mixed with, for example, 10% by weight of a methylpyrrolidone solution with respect to the positive electrode material to prepare a slurry as a positive electrode mixture.
- the slurry is applied to the positive electrode current collector, for example, on a 3 cm x 3 cm region of an aluminum foil having a thickness of 18 ⁇ m, for example, by a doctor blade method, and then dried to thereby produce a positive electrode active material. Form a layer.
- a positive electrode tab is attached to a region of the aluminum foil where the positive electrode active material layer is not formed, thereby producing a positive electrode.
- binder of the positive electrode material instead of poly (vinylidene fluoride), polytetrafluoroethylene, polyethylene oxide, polyvinyl acetate, polymetatalylate, polyatalylate, polyacrylonitrile, polybulal alcohol, styrene butadiene La At least one selected from bar, carboxymethyl cellulose and the like can be used.
- poly (vinylidene fluoride) polytetrafluoroethylene, polyethylene oxide, polyvinyl acetate, polymetatalylate, polyatalylate, polyacrylonitrile, polybulal alcohol, styrene butadiene La At least one selected from bar, carboxymethyl cellulose and the like can be used.
- the amount of the binder is in the range of 0 to 30% by weight of the whole positive electrode material, preferably in the range of 0 to 20% by weight, and more preferably in the range of 0 to 10% by weight.
- the conductive agent of the positive electrode material other carbon materials such as acetylene black and graphite can be used instead of ketjen black. If the addition amount of the conductive agent is small, the conductivity in the positive electrode material cannot be sufficiently improved. On the other hand, if the addition amount is too large, the proportion of the positive electrode active material contained in the positive electrode material decreases and is high. Energy density cannot be obtained. Therefore, the amount of the conductive agent is in the range of 0 to 30% by weight of the positive electrode material, preferably in the range of 0 to 20% by weight, and more preferably in the range of 0 to 10% by weight.
- foamed aluminum, foamed nickel, or the like can be used in order to increase electronic conductivity.
- a negative electrode active material having a carbon power and polyvinylidene fluoride (PVdF) as a binder are added so that the weight ratio thereof is 95: 5, and then mixed, thereby mixing as a negative electrode mixture.
- PVdF polyvinylidene fluoride
- a slurry is prepared by adding, for example, N-methyl-2-pyrrolidone to the negative electrode mixture and kneading.
- the negative electrode active material layer is formed by applying the slurry to both surfaces of a negative electrode current collector, for example, a copper foil having a thickness of 20 m, by a doctor blade method.
- the current collector on which the negative electrode active material layer is formed is cut into a size of 2. Ocm X 2. Ocm, and a negative electrode tab is attached to produce a negative electrode.
- non-aqueous electrolyte an electrolyte salt dissolved in a non-aqueous solvent can be used.
- the nonaqueous solvent include cyclic carbonates, chain carbonates, esters, cyclic ethers, chain ethers, nitriles, amides, and the like, which are usually used as nonaqueous solvents for batteries. Combination power.
- Examples of the cyclic carbonate include ethylene carbonate, propylene carbonate, butylene carbonate and the like, and those in which some or all of these hydrogen groups are fluorinated can be used.
- ethylene carbonate, propylene carbonate, butylene carbonate and the like and those in which some or all of these hydrogen groups are fluorinated can be used.
- Trifluoropropylene carbonate, fluorethyl carbonate and the like Trifluoropropylene carbonate, fluorethyl carbonate and the like.
- chain carbonic acid ester examples include dimethyl carbonate, ethyl methyl carbonate, dimethylol carbonate, methinorepropinole carbonate, ethyl propyl carbonate, and methyl isopropyl carbonate. Some or all of them may be fluorinated.
- esters include methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, and ⁇ -petit-mouth rataton.
- Cyclic ethers include 1,3 dioxolane, 4-methyl 1,3 dioxolane, tetrahydrofuran, 2-methyltetrahydrofuran, propylene oxide, 1,2 butylene oxide, 1,4 dioxane, 1,3,5 trioxane, furan, Examples include 2-methylfuran, 1,8 cineole, and crown ether.
- chain ethers examples include 1,2 dimethoxyethane, jetyl ether, dipropyl etherenole, diisopropino enotenole, dibutino enoate, dihexino ethenore, ethyl vinyl ether, butyl vinyl ether, Methyl phenyl ether, ethyl phenyl enoleate, butino leneno enoate, pentino leneno enoate, methoxytonolene, benzeno retino enotenole, diphenino enotenate, dipenzino reeenore, ⁇ dimethoxybenzene 1,2-diethoxyethane, 1,2-dibutoxetane, diethylene glycol dimethylol ether, diethylene glycol jetinole ether, diethylene glycol dibutyl ether, 1,1-dimethoxymethane, 1,
- Examples of nitriles include acetonitrile, and examples of amides include dimethylformamide.
- Examples of the electrolyte salt include potassium hexafluorophosphate (KPF) and potassium tetrafluoroborate.
- One of the above electrolyte salts may be used, or two or more may be used in combination.
- potassium hexafluorophosphate as an electrolyte salt is added to a nonaqueous solvent in which ethylene carbonate and jetyl carbonate are mixed at a volume ratio of 50:50 as a nonaqueous electrolyte. Use the one added to a concentration of 7 molZl.
- FIG. 1 is a perspective view showing a nonaqueous electrolyte secondary battery according to the present embodiment.
- the nonaqueous electrolyte secondary battery according to the present embodiment includes an exterior body 40.
- the negative electrode tab 47 and the positive electrode tab 48 are provided so as to be pulled out from the exterior body 40 to the outside.
- FIG. 2 is a schematic cross-sectional view of the nonaqueous electrolyte secondary battery of FIG.
- the exterior body 40 is formed of, for example, a laminate film having an aluminum force.
- a negative electrode current collector 41 and a positive electrode current collector 43 are provided in the exterior body 40.
- a negative electrode active material layer 42 containing carbon is formed on the negative electrode current collector 41.
- a positive electrode active material layer 44 is formed on 43.
- the negative electrode active material layer 42 formed on the negative electrode current collector 41 and the positive electrode active material layer 44 formed on the positive electrode current collector 43 are provided so as to face each other with the separator 45 interposed therebetween. ⁇ .
- a non-aqueous electrolyte 46 is injected into the exterior body 40.
- a sealing portion 40a sealed by welding is formed at the end of the exterior body 40 on the side from which the negative electrode tab 47 and the positive electrode tab 48 are drawn.
- the negative electrode tab 47 connected to the negative electrode current collector 41 is drawn to the outside through the sealing portion 40a.
- the positive electrode tab 48 connected to the positive electrode current collector 43 is also pulled out to the outside through the sealing portion 40a, like the negative electrode tab 47. (Effect in the present embodiment)
- potassium ions are sufficiently occluded and released from the positive electrode.
- the cost can be reduced by using abundant potassium.
- non-aqueous electrolyte secondary battery by using the positive electrode as described above for a non-aqueous electrolyte secondary battery, reversible charging / discharging can be performed and an inexpensive non-aqueous electrolyte 2 is used.
- a secondary battery can be provided.
- FIG. 3 is a graph showing the charge / discharge characteristics of the nonaqueous electrolyte secondary battery.
- the discharge capacity density per lg of the negative electrode active material was about lOOmAhZg, which proved that charge and discharge were performed satisfactorily. That is, it has been clarified that potassium ions are stored and released reversibly from the positive electrode. As a result, the effectiveness of the new non-aqueous electrolyte secondary battery replacing the conventional non-aqueous electrolyte secondary battery using lithium ions could be confirmed.
- the nonaqueous electrolyte secondary battery according to the present invention can be used as various power sources such as a portable power source and an automobile power source.
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- General Chemical & Material Sciences (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800042135A CN101116199B (zh) | 2005-02-07 | 2006-01-20 | 正极和使用该正极的非水电解质二次电池 |
US11/883,808 US20080292959A1 (en) | 2005-02-07 | 2006-01-20 | Positive Electrode and Non-Aqueous Electrolyte Secondary Battery Using the Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005030893A JP2006216510A (ja) | 2005-02-07 | 2005-02-07 | 正極およびそれを用いた非水電解質二次電池 |
JP2005-030893 | 2005-02-07 |
Publications (1)
Publication Number | Publication Date |
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WO2006082720A1 true WO2006082720A1 (ja) | 2006-08-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/300881 WO2006082720A1 (ja) | 2005-02-07 | 2006-01-20 | 正極およびそれを用いた非水電解質二次電池 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080292959A1 (ja) |
JP (1) | JP2006216510A (ja) |
KR (1) | KR100982599B1 (ja) |
CN (1) | CN101116199B (ja) |
WO (1) | WO2006082720A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103441260A (zh) * | 2013-08-12 | 2013-12-11 | 恩力能源科技(南通)有限公司 | 一种水系碱性电化学储能器件 |
CN103441259A (zh) * | 2013-08-12 | 2013-12-11 | 恩力能源科技(南通)有限公司 | 一种高倍率水系碱金属电化学电池正极材料及其制备方法 |
JPWO2017099137A1 (ja) * | 2015-12-07 | 2018-09-27 | 国立研究開発法人産業技術総合研究所 | カリウムイオン二次電池用正極活物質 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10593992B2 (en) | 2014-10-15 | 2020-03-17 | Tokyo University Of Science Foundation | Negative electrode for potassium ion secondary batteries, negative electrode for potassium ion capacitors, potassium ion secondary battery, potassium ion capacitor, and binder for negative electrodes of potassium ion secondary batteries or negative electrodes of potassium ion capacitors |
KR20200025425A (ko) | 2018-08-30 | 2020-03-10 | 한국에너지기술연구원 | Ess를 연계한 저온조건의 바이오매스내 회분유발성분을 제거한 연료 생산 시스템 |
JP7169650B2 (ja) * | 2019-04-08 | 2022-11-11 | 国立研究開発法人産業技術総合研究所 | カリウムイオン二次電池用正極活物質及びその製造方法、並びにカリウムイオン二次電池 |
KR102251160B1 (ko) | 2020-10-27 | 2021-05-14 | 한국에너지기술연구원 | Ess를 연계한 저온조건의 바이오매스내 회분유발성분을 제거한 연료 생산 시스템 |
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JPH09102311A (ja) * | 1995-10-03 | 1997-04-15 | Nippon Telegr & Teleph Corp <Ntt> | 二次電池 |
JPH09102312A (ja) * | 1995-10-03 | 1997-04-15 | Nippon Telegr & Teleph Corp <Ntt> | 二次電池 |
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JPH06163080A (ja) * | 1992-11-19 | 1994-06-10 | Sanyo Electric Co Ltd | 二次電池 |
US5601949A (en) * | 1992-11-19 | 1997-02-11 | Sanyo Electric Co., Ltd. | Ion conductive material for secondary battery |
JP3325423B2 (ja) * | 1995-03-20 | 2002-09-17 | 松下電器産業株式会社 | 非水電解質二次電池、電池用正極活物質およびその製造方法 |
US6306509B2 (en) * | 1996-03-21 | 2001-10-23 | Showa Denko K.K. | Ion conductive laminate and production method and use thereof |
EP0880187B1 (en) * | 1997-05-22 | 2004-11-24 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
US6423448B1 (en) * | 1997-05-22 | 2002-07-23 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
US6306542B1 (en) * | 1998-05-22 | 2001-10-23 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Lithium manganese composite oxide for lithium secondary battery cathode active material, manufacturing method thereof, and lithium secondary battery using the composite oxide as cathode active material |
JP2000149988A (ja) * | 1998-09-10 | 2000-05-30 | Sanyo Electric Co Ltd | 非水電解液二次電池 |
US6730435B1 (en) * | 1999-10-26 | 2004-05-04 | Sumitomo Chemical Company, Limited | Active material for non-aqueous secondary battery, and non-aqueous secondary battery using the same |
JP2001332256A (ja) * | 2000-05-22 | 2001-11-30 | Nippon Telegr & Teleph Corp <Ntt> | 電極材料、その製造方法及びそれを用いた電池 |
JP2002280078A (ja) * | 2001-03-16 | 2002-09-27 | Sony Corp | 電 池 |
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2005
- 2005-02-07 JP JP2005030893A patent/JP2006216510A/ja active Pending
-
2006
- 2006-01-20 CN CN2006800042135A patent/CN101116199B/zh not_active Expired - Fee Related
- 2006-01-20 KR KR1020077020374A patent/KR100982599B1/ko not_active IP Right Cessation
- 2006-01-20 WO PCT/JP2006/300881 patent/WO2006082720A1/ja active Application Filing
- 2006-01-20 US US11/883,808 patent/US20080292959A1/en not_active Abandoned
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JPH09102311A (ja) * | 1995-10-03 | 1997-04-15 | Nippon Telegr & Teleph Corp <Ntt> | 二次電池 |
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OHASHI M.: "Sojo Kessho KxMnxTi2-xO4 no Gosei to Lithium Niji Denchi Seikyoku Katsu Busshitsu eno Oyo", RESEARCH REPORTS OF THE TOKUYAMA COLLEGE OF TECHNOLOGY, no. 22, 1998, pages 61 - 66, XP003004065 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103441260A (zh) * | 2013-08-12 | 2013-12-11 | 恩力能源科技(南通)有限公司 | 一种水系碱性电化学储能器件 |
CN103441259A (zh) * | 2013-08-12 | 2013-12-11 | 恩力能源科技(南通)有限公司 | 一种高倍率水系碱金属电化学电池正极材料及其制备方法 |
JPWO2017099137A1 (ja) * | 2015-12-07 | 2018-09-27 | 国立研究開発法人産業技術総合研究所 | カリウムイオン二次電池用正極活物質 |
Also Published As
Publication number | Publication date |
---|---|
CN101116199B (zh) | 2010-05-19 |
KR20070100919A (ko) | 2007-10-12 |
US20080292959A1 (en) | 2008-11-27 |
JP2006216510A (ja) | 2006-08-17 |
CN101116199A (zh) | 2008-01-30 |
KR100982599B1 (ko) | 2010-09-15 |
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