WO2012053322A1 - 溶融塩電池 - Google Patents
溶融塩電池 Download PDFInfo
- Publication number
- WO2012053322A1 WO2012053322A1 PCT/JP2011/071958 JP2011071958W WO2012053322A1 WO 2012053322 A1 WO2012053322 A1 WO 2012053322A1 JP 2011071958 W JP2011071958 W JP 2011071958W WO 2012053322 A1 WO2012053322 A1 WO 2012053322A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molten salt
- electrolyte
- salt battery
- battery
- current collector
- Prior art date
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- 150000003839 salts Chemical class 0.000 title claims abstract description 69
- 239000003792 electrolyte Substances 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 229910001453 nickel ion Inorganic materials 0.000 claims abstract description 26
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims abstract description 25
- -1 iron ions Chemical class 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000007797 corrosion Effects 0.000 abstract description 18
- 238000005260 corrosion Methods 0.000 abstract description 18
- 239000012535 impurity Substances 0.000 abstract description 10
- 239000007773 negative electrode material Substances 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
-
- 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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
- H01M10/399—Cells with molten salts
-
- 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
-
- 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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- 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 molten salt battery using a molten salt as an electrolyte.
- the molten salt battery is a battery using a molten salt as an electrolyte, and operates in a state where the molten salt is melted.
- the temperature during operation of the molten salt battery is maintained at a temperature equal to or higher than the melting point of the molten salt, and is usually higher than other batteries such as lithium ion batteries.
- an aluminum foil is used as a current collector for a positive electrode, and a copper foil is used as a current collector for a negative electrode.
- Each current collector carries an active material of each electrode.
- aluminum is often used for the current collector of both electrodes.
- the aluminum current collector in contact with the electrolyte may corrode.
- corrosion of aluminum is not a major problem in lithium ion batteries
- the current collector is corroded in molten salt batteries, which have a higher operating temperature than lithium ion batteries and use aluminum current collectors at both electrodes. Doing so may cause deterioration.
- pitting corrosion occurs such that the hole erodes inside the aluminum, the current collector is easily broken and the cycle life of the molten salt battery is shortened.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a molten salt battery having an improved cycle life by using an electrolyte that hardly causes corrosion of aluminum. is there.
- the current collector of the electrode is made of aluminum, and in the molten salt battery using a molten salt as an electrolyte, the total concentration of iron ions and nickel ions contained in the electrolyte is 0.1. It is characterized by being not more than% by weight.
- the total concentration of iron ions and nickel ions contained as impurities in the electrolyte of the molten salt battery is 0.1% by weight or less, thereby suppressing the corrosion of the current collector of the electrode formed of aluminum. Is done.
- the molten salt battery according to the present invention is characterized in that the total concentration of iron ions and nickel ions contained in the electrolyte is 0.05% by weight or less.
- the total concentration of iron ions and nickel ions contained as impurities in the electrolyte of the molten salt battery is 0.05% by weight or less, whereby corrosion of the current collector of the electrode formed of aluminum is prevented. More suppressed.
- the molten salt battery according to the present invention is characterized in that the total concentration of iron ions and nickel ions contained in the electrolyte is 0.01% by weight or less.
- the total concentration of iron ions and nickel ions contained as impurities in the electrolyte of the molten salt battery is 0.01% by weight or less, whereby corrosion of the current collector of the electrode formed of aluminum is prevented. It is further suppressed.
- the corrosion of the current collector of the electrode formed of aluminum is suppressed, and the cycle life of the molten salt battery is improved.
- the cycle life of the molten salt battery is improved.
- FIG. 1 is a schematic cross-sectional view showing a configuration example of the molten salt battery of the present invention.
- FIG. 1 shows a schematic cross-sectional view of a molten salt battery cut longitudinally.
- the molten salt battery is configured such that a positive electrode 1, a separator 3, and a negative electrode 2 are arranged side by side in a rectangular parallelepiped box-shaped battery container 51 whose upper surface is open, and a lid 52 is attached to the battery container 51.
- the battery container 51 and the lid 52 are made of aluminum.
- the positive electrode 1 and the negative electrode 2 are formed in a rectangular flat plate shape, and the separator 3 is formed in a sheet shape.
- the separator 3 is interposed between the positive electrode 1 and the negative electrode 2.
- the positive electrode 1, the separator 3, and the negative electrode 2 are stacked and arranged vertically with respect to the bottom surface of the battery container 51.
- a spring 41 made of corrugated metal is arranged between the negative electrode 2 and the inner wall of the battery case 51.
- the spring 41 is made of an aluminum alloy and biases a flat plate-like presser plate 42 having inflexibility to press the negative electrode 2 toward the separator 3 and the positive electrode 1 side.
- the positive electrode 1 is pressed toward the separator 3 and the negative electrode 2 side from the inner wall opposite to the spring 41 by the reaction of the spring 41.
- the spring 41 is not limited to a metal spring or the like, and may be an elastic body such as rubber, for example.
- the positive electrode 1 is formed by applying a positive electrode material 12 including a positive electrode active material such as NaCrO 2 and a binder on a rectangular plate-shaped positive electrode current collector 11 made of aluminum.
- the positive electrode active material is not limited to NaCrO 2 .
- a negative electrode material 22 containing a negative electrode active material such as tin is formed on a rectangular plate-shaped negative electrode current collector 21 made of aluminum by plating.
- tin plating is performed after zinc is plated on the base as a zincate treatment.
- the negative electrode active material is not limited to tin.
- tin may be replaced with metallic sodium, carbon, silicon, or indium.
- the negative electrode material 22 may be formed, for example, by applying a binder to a negative electrode active material powder and applying the powder onto the negative electrode current collector 21.
- the separator 3 is an insulating material such as silicate glass or resin, and is formed in a shape capable of holding an electrolyte therein and allowing sodium ions to pass therethrough.
- the separator 3 is a resin formed in, for example, a glass cloth or a porous shape.
- the positive electrode material 12 of the positive electrode 1 and the negative electrode material 22 of the negative electrode 2 face each other, and a separator 3 is interposed between the positive electrode 1 and the negative electrode 2.
- the separator 3 is impregnated with an electrolyte made of a molten salt.
- the electrolyte impregnated in the separator 3 is in contact with the positive electrode material 12 of the positive electrode 1 and the negative electrode material 22 of the negative electrode 2.
- the inner surface of the battery container 51 has an insulating structure by a method such as coating with an insulating resin.
- a positive terminal 53 and a negative terminal 54 for connecting to the outside are provided on the outside of the lid 52.
- the positive electrode terminal 53 and the negative electrode terminal 54 are insulated from each other, and the portion of the lid 52 facing the inside of the battery container 51 is also insulated by an insulating film or the like.
- One end of the positive electrode current collector 11 is connected to the positive electrode terminal 53 with a lead wire 55
- one end portion of the negative electrode current collector 21 is connected to the negative electrode terminal 54 with a lead wire 56.
- the lead wire 55 and the lead wire 56 are insulated from the lid portion 52.
- the lid 52 is attached to the battery container 51 by welding.
- the electrolyte impregnated in the separator 3 is a molten salt that becomes a conductive liquid in a molten state.
- the molten salt becomes an electrolytic solution, and the molten salt battery operates as a secondary battery.
- the electrolyte is a mixture of a plurality of types of molten salts.
- the electrolyte is a mixed salt of NaFSA using sodium ion as a cation and FSA (bisfluorosulfonylamide) as an anion and KFSA using potassium ion as a cation and FSA as an anion.
- the configuration of the molten salt battery shown in FIG. 1 is a schematic configuration, and the molten salt battery may include other components (not shown) such as a heater or a temperature sensor for heating the inside.
- Good. 1 shows a form in which a pair of positive electrodes 1 and negative electrodes 2 are provided, the molten salt of the present invention has a form in which a plurality of positive electrodes 1 and negative electrodes 2 are alternately stacked with separators 3 interposed therebetween. May be.
- FIG. 2 is a schematic cross-sectional view showing the positive electrode current collector 11 in which pitting corrosion has occurred. 2 in FIG. 2 indicates a pitting portion.
- the pitting portion 6 erodes from the portion in contact with the electrolyte into the positive electrode current collector 11. After a certain amount of pitting corrosion erodes into the positive electrode current collector 11, the positive electrode current collector 11 is easily broken when an impact is applied. Similarly, pitting corrosion occurs in the negative electrode current collector 21.
- the internal temperature during operation is higher than that of other batteries such as a lithium ion battery, so that pitting corrosion is likely to occur.
- the positive electrode current collector 11 and the negative electrode current collector 21 are easily deteriorated due to the occurrence of pitting corrosion, and the cycle life is shortened. Become.
- the molten salt battery of the present invention has improved cycle life by reducing the concentration of iron ions and nickel ions contained as impurities in the electrolyte.
- FIG. 3 is a chart showing the relationship between the total concentration of iron ions and nickel ions contained in the electrolyte of the molten salt battery and the cycle life of the molten salt battery.
- FIG. 3 shows the results of measuring the cycle life of a molten salt battery in which the total concentration of iron ions and nickel ions contained as impurities in the electrolyte is adjusted.
- the cycle life of the molten salt battery is 50 cycles or less, and the practicality of the molten salt battery is Low.
- the total concentration of iron ions and nickel ions contained as impurities in the electrolyte needs to be at least 0.1 wt% or less.
- the cycle life of the molten salt battery is 500 to 1000 cycles. Therefore, in order to improve the practicality of the molten salt battery by setting the cycle life to 500 to 1000 cycles or more, the total concentration of iron ions and nickel ions contained as impurities in the electrolyte of the molten salt battery is 0.05% by weight or less. It is desirable that Further, as shown in FIG. 3, when the total concentration of iron ions and nickel ions contained in the electrolyte is 0.01% by weight or less, the cycle life of the molten salt battery is 3000 cycles or more.
- a molten salt battery having a cycle life of 3000 cycles or more has sufficient practicality. Therefore, in order to set the cycle life to 3000 cycles or more and sufficiently improve the practicality of the molten salt battery, the total concentration of iron ions and nickel ions contained as impurities in the electrolyte of the molten salt battery is 0.01% by weight or less. It is desirable that As described above, the total concentration of iron ions and nickel ions contained as impurities in the electrolyte is 0.1% by weight or less, preferably 0.01% by weight or less, so that the positive electrode current collector 11 made of aluminum and Corrosion of the negative electrode current collector 21 is suppressed, and the cycle life of the molten salt battery is improved. By improving the cycle life, the molten salt battery can be used repeatedly, and the practicality of the molten salt battery is improved.
Abstract
Description
図1は、本発明の溶融塩電池の構成例を示す模式的断面図である。図1には、溶融塩電池を縦に切断した模式的断面図を示している。溶融塩電池は、上面が開口した直方体の箱状の電池容器51内に、正極1、セパレータ3及び負極2を並べて配置し、電池容器51に蓋部52を冠着して構成されている。電池容器51及び蓋部52はアルミニウムで形成されている。正極1及び負極2は矩形平板状に形成されており、セパレータ3はシート状に形成されている。セパレータ3は正極1及び負極2の間に介装されている。正極1、セパレータ3及び負極2は、重ねられ、電池容器51の底面に対して縦に配置されている。
セパレータ3は、ケイ酸ガラス又は樹脂等の絶縁性の材料で、内部に電解質を保持でき、またナトリウムイオンが通過できるような形状に形成されている。セパレータ3は、例えばガラスクロス又は多孔質の形状に形成された樹脂である。
溶融塩の融点以上の温度で、溶融塩は電解液となり、溶融塩電池は二次電池として動作する。融点を低下させるために、電解質は、複数種類の溶融塩が混合していることが望ましい。例えば、電解質は、ナトリウムイオンをカチオンとしFSA(ビスフルオロスルフォニルアミド)をアニオンとしたNaFSAと、カリウムイオンをカチオンとしFSAをアニオンとしたKFSAとの混合塩である。なお、図1に示した溶融塩電池の構成は模式的な構成であり、溶融塩電池内には、内部を加熱するヒータ、又は温度センサ等、図示しないその他の構成物が含まれていてもよい。また、図1には正極1及び負極2を一対備える形態を示したが、本発明の溶融塩は、セパレータ3を間に介して複数の正極1及び負極2を交互に重ねてある形態であってもよい。
11 正極集電体
2 負極
21 負極集電体
3 セパレータ
41 バネ
51 電池容器
52 蓋部
6 孔食部分
Claims (3)
- 電極の集電体がアルミニウム製であり、電解質として溶融塩を用いた溶融塩電池において、
電解質に含まれる鉄イオン及びニッケルイオンの合計の濃度が、0.1重量%以下であることを特徴とする溶融塩電池。 - 前記電解質に含まれる鉄イオン及びニッケルイオンの合計の濃度が、0.05重量%以下であることを特徴とする請求項1に記載の溶融塩電池。
- 前記電解質に含まれる鉄イオン及びニッケルイオンの合計の濃度が、0.01重量%以下であることを特徴とする請求項2に記載の溶融塩電池。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180050806.6A CN103181020B (zh) | 2010-10-21 | 2011-09-27 | 熔融盐电池 |
US13/823,595 US20130171513A1 (en) | 2010-10-21 | 2011-09-27 | Molten salt battery |
KR1020137008670A KR20130130701A (ko) | 2010-10-21 | 2011-09-27 | 용융염 전지 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010236822A JP5614234B2 (ja) | 2010-10-21 | 2010-10-21 | 溶融塩電池 |
JP2010-236822 | 2010-10-21 |
Publications (1)
Publication Number | Publication Date |
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WO2012053322A1 true WO2012053322A1 (ja) | 2012-04-26 |
Family
ID=45975041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/071958 WO2012053322A1 (ja) | 2010-10-21 | 2011-09-27 | 溶融塩電池 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130171513A1 (ja) |
JP (1) | JP5614234B2 (ja) |
KR (1) | KR20130130701A (ja) |
CN (1) | CN103181020B (ja) |
WO (1) | WO2012053322A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109698377B (zh) * | 2018-12-09 | 2020-12-25 | 中南新能源技术研究院(南京)有限公司 | 一种塑封结构的锂离子电池 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1186905A (ja) * | 1997-09-12 | 1999-03-30 | Toshiba Corp | 非水電解質二次電池 |
JP2011192474A (ja) * | 2010-03-12 | 2011-09-29 | Sumitomo Electric Ind Ltd | 電池用負極材料、電池用負極前駆体材料、及び電池 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3355377B2 (ja) * | 1995-12-08 | 2002-12-09 | 株式会社日立製作所 | ナトリウム/溶融塩電池 |
EP1862452A1 (en) * | 2005-03-23 | 2007-12-05 | Kyoto University | Molten salt composition and use thereof |
US20070003831A1 (en) * | 2005-07-01 | 2007-01-04 | Fripp Michael L | Construction and operation of an oilfield molten salt battery |
JP2008004461A (ja) * | 2006-06-26 | 2008-01-10 | Sanyo Electric Co Ltd | 非水電解質二次電池 |
JP4435194B2 (ja) * | 2007-03-27 | 2010-03-17 | 株式会社東芝 | 非水電解質電池、電池パック及び自動車 |
-
2010
- 2010-10-21 JP JP2010236822A patent/JP5614234B2/ja active Active
-
2011
- 2011-09-27 KR KR1020137008670A patent/KR20130130701A/ko not_active Application Discontinuation
- 2011-09-27 US US13/823,595 patent/US20130171513A1/en not_active Abandoned
- 2011-09-27 WO PCT/JP2011/071958 patent/WO2012053322A1/ja active Application Filing
- 2011-09-27 CN CN201180050806.6A patent/CN103181020B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1186905A (ja) * | 1997-09-12 | 1999-03-30 | Toshiba Corp | 非水電解質二次電池 |
JP2011192474A (ja) * | 2010-03-12 | 2011-09-29 | Sumitomo Electric Ind Ltd | 電池用負極材料、電池用負極前駆体材料、及び電池 |
Also Published As
Publication number | Publication date |
---|---|
JP2012089423A (ja) | 2012-05-10 |
KR20130130701A (ko) | 2013-12-02 |
US20130171513A1 (en) | 2013-07-04 |
CN103181020A (zh) | 2013-06-26 |
JP5614234B2 (ja) | 2014-10-29 |
CN103181020B (zh) | 2016-05-18 |
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