JPWO2013002359A1 - 溶融塩電池の製造方法および溶融塩電池 - Google Patents
溶融塩電池の製造方法および溶融塩電池 Download PDFInfo
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- 150000003839 salts Chemical class 0.000 title claims abstract description 184
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000007789 gas Substances 0.000 claims description 47
- -1 imidazolinium ion Chemical class 0.000 claims description 27
- 239000011261 inert gas Substances 0.000 claims description 11
- 150000001768 cations Chemical class 0.000 claims description 10
- 150000001450 anions Chemical class 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 125000003709 fluoroalkyl group Chemical group 0.000 claims description 6
- 229910001415 sodium ion Inorganic materials 0.000 claims description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- RAXXELZNTBOGNW-UHFFFAOYSA-O Imidazolium Chemical compound C1=C[NH+]=CN1 RAXXELZNTBOGNW-UHFFFAOYSA-O 0.000 claims description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-O Pyrrolidinium ion Chemical compound C1CC[NH2+]C1 RWRDLPDLKQPQOW-UHFFFAOYSA-O 0.000 claims description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 claims description 3
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 claims description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 42
- 229910052786 argon Inorganic materials 0.000 description 21
- 239000003792 electrolyte Substances 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 230000007774 longterm Effects 0.000 description 11
- 238000011049 filling Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 239000005486 organic electrolyte Substances 0.000 description 6
- 239000007774 positive electrode material Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 5
- 229910000528 Na alloy Inorganic materials 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002482 conductive additive Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 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 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- KXNAKBRHZYDSLY-UHFFFAOYSA-N sodium;oxygen(2-);titanium(4+) Chemical compound [O-2].[Na+].[Ti+4] KXNAKBRHZYDSLY-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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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
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/049—Processes for forming or storing electrodes in the battery container
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/3909—Sodium-sulfur cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
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- H01—ELECTRIC ELEMENTS
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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
- H01M2300/0048—Molten electrolytes used at high temperature
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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
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
(5)電池容器の水分量が200ppmを超えると、溶融塩電池の長期使用により電池容量が低下する虞がある。これは、水による電極表面の酸化又は水酸化物の付着、水との反応による溶融塩の劣化等の影響によるものと考えられる。特に、溶融塩がフッ素を含む場合、約100℃での電池動作環境下で、溶融塩と水とが反応してフッ酸(HF)が発生する虞がある。この場合、フッ酸により電池容器や電極部材が腐食されて、電池性能の安定性に問題が生じる。この点、本実施形態によれば、電池容器40の含水量は200ppm以下に抑えられている。このため、電池容器40内の含水量を200ppm以下に乾燥しない場合と比べて、溶融塩電池1の長期使用により電池容量が低下することを抑制できる。
Claims (11)
- 溶融塩電池の製造方法において、
電池容器に、正極と負極とセパレータとを収容する収容工程と、
溶融した溶融塩を、前記電池容器に注入する注入工程と、
ガス排出口を備えた封止蓋により、前記電池容器を封止する封止工程と、
前記ガス排出口を開いた状態で前記電池容器をチャンバー内に収容し、前記チャンバー内を真空状態として前記電池容器を加熱する加熱乾燥工程と、
前記ガス排出口を閉鎖する密封工程とを備える
ことを特徴とする溶融塩電池の製造方法。 - 請求項1に記載の溶融塩電池の製造方法において、
前記電池容器を加熱する加熱乾燥工程の前に、加熱部分充電工程を含むことを特徴とする溶融塩電池の製造方法。 - 請求項1又は2に記載の溶融塩電池の製造方法において、
前記溶融塩は、N(SO2−R1)(SO2−R2)のアニオン(R1とR2はそれぞれ独立してフッ素またはフルオロアルキル基を示す)と、アルカリ金属およびアルカリ土類金属の少なくとも一方のカチオンとを含み、
前記加熱乾燥工程では、前記溶融塩の融点以上かつ前記溶融塩が分解する分解温度以下で加熱することを特徴とする溶融塩電池の製造方法。 - 請求項3に記載の溶融塩電池の製造方法において、
前記溶融塩は、N(SO2−R1)(SO2−R2)のアニオン(R1とR2はそれぞれ独立してフッ素またはフルオロアルキル基を示す)と、カチオンとして、ナトリウムイオンに加えて、四級アンモニウムイオン、イミダゾリウムイオン、イミダゾリニウムイオン、ピリジニウムイオン、ピロリジニウムイオン、ピペリジニウムイオン、モルホリニウムイオン、フォスフォニウムイオン、ピペラジニウムイオン及びスルフォニウムイオンのうちの少なくとも1種を含むことを特徴とする溶融塩電池の製造方法。 - 請求項1〜4のうちいずれか一項に記載の溶融塩電池の製造方法において、
前記加熱乾燥工程後、前記ガス排出口を通じて前記電池容器内に不活性ガスを充填することを特徴とする溶融塩電池の製造方法。 - 請求項5に記載の溶融塩電池の製造方法において、
前記不活性ガスの含水量は10ppm以下であることを特徴とする溶融塩電池の製造方法。 - 請求項1〜6のいずれか一項に記載の溶融塩電池の製造方法において、
前記電池容器内の含水量は200ppm以下であることを特徴とする溶融塩電池の製造方法。 - 請求項7のいずれか一項に記載の溶融塩電池の製造方法において、
前記電池容器内の溶融塩中の含水量は200ppm以下であることを特徴とする溶融塩電池の製造方法。 - 請求項1〜8のいずれか一項に記載の溶融塩電池の製造方法において、
前記封止蓋には、通気孔を前記ガス排出口として有する逆止弁が設けられていることを特徴とする溶融塩電池の製造方法。 - 請求項1〜9のいずれか一項に記載の溶融塩電池の製造方法において、
前記封止蓋には、ガス排出口としての出口と、封止することのできる管路を有するガス排管とが設けられていることを特徴とする溶融塩電池の製造方法。 - 請求項1〜10のいずれか一項の溶融塩電池の製造方法により製造された溶融塩電池。
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PCT/JP2012/066659 WO2013002359A1 (ja) | 2011-06-29 | 2012-06-29 | 溶融塩電池の製造方法および溶融塩電池 |
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JP6065443B2 (ja) | 2012-08-01 | 2017-01-25 | 住友電気工業株式会社 | 耐熱電池およびその充放電方法 |
JP2014170648A (ja) * | 2013-03-01 | 2014-09-18 | Sumitomo Electric Ind Ltd | 密閉式電池の封止構造体、および密閉式電池 |
JPWO2014170979A1 (ja) * | 2013-04-18 | 2017-02-16 | 住友電気工業株式会社 | 溶融塩電解液を使用するナトリウム二次電池用の負極活物質、負極及び溶融塩電解液を使用するナトリウム二次電池 |
JP2014238935A (ja) * | 2013-06-06 | 2014-12-18 | 住友電気工業株式会社 | ナトリウム溶融塩電池に用いるイオン液体および溶融塩電解質、ナトリウム溶融塩電池、ならびにナトリウム溶融塩電池用溶融塩電解質の製造方法 |
JP2015022907A (ja) * | 2013-07-19 | 2015-02-02 | 住友電気工業株式会社 | ナトリウム溶融塩電池 |
JP2017107638A (ja) * | 2014-04-16 | 2017-06-15 | 住友電気工業株式会社 | 溶融塩電池およびその製造方法 |
EP3786171A1 (en) | 2016-04-01 | 2021-03-03 | Nohms Technologies, Inc. | Modified ionic liquids containing phosphorus |
US20180108902A1 (en) * | 2016-10-17 | 2018-04-19 | The Paper Battery Company, Inc. | Filling and sealing energy storage structures, and fabrication tools therefor |
KR102217448B1 (ko) * | 2017-07-13 | 2021-02-22 | 주식회사 엘지화학 | 이차 전지 및 이차 전지의 제조 방법 |
US10665899B2 (en) | 2017-07-17 | 2020-05-26 | NOHMs Technologies, Inc. | Phosphorus containing electrolytes |
JP7118467B1 (ja) | 2020-09-18 | 2022-08-16 | 株式会社岩谷技研 | 被写体を撮影するための撮影方法 |
US11451112B2 (en) | 2020-11-25 | 2022-09-20 | Higher Dimension Materials, Inc. | Flywheel and molten salt hybrid energy storage systems |
US11794906B2 (en) | 2021-03-19 | 2023-10-24 | Iwaya Giken Inc. | Container for flight craft |
US11585571B1 (en) | 2022-06-28 | 2023-02-21 | Higher Dimension Materials, Inc. | Energy storage systems |
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JP5991319B2 (ja) | 2016-09-14 |
KR20140038992A (ko) | 2014-03-31 |
CN103636056A (zh) | 2014-03-12 |
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KR101846045B1 (ko) | 2018-04-05 |
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