JPS6372073A - Sodium-sulfur battery - Google Patents
Sodium-sulfur batteryInfo
- Publication number
- JPS6372073A JPS6372073A JP61213932A JP21393286A JPS6372073A JP S6372073 A JPS6372073 A JP S6372073A JP 61213932 A JP61213932 A JP 61213932A JP 21393286 A JP21393286 A JP 21393286A JP S6372073 A JPS6372073 A JP S6372073A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- sodium
- solid electrolyte
- battery
- sulfur
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 26
- 239000012535 impurity Substances 0.000 claims abstract description 24
- 239000011149 active material Substances 0.000 claims abstract description 18
- 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 claims abstract description 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 239000011593 sulfur Substances 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims description 7
- 239000006182 cathode active material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 3
- 229910001415 sodium ion Inorganic materials 0.000 claims description 3
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 claims description 2
- 239000006183 anode active material Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000004615 ingredient Substances 0.000 abstract 2
- 239000010406 cathode material Substances 0.000 abstract 1
- RPMPQTVHEJVLCR-UHFFFAOYSA-N pentaaluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3] RPMPQTVHEJVLCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000002516 radical scavenger Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000873 Beta-alumina solid electrolyte Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-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
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電池活物質の純化装置を備えたナトリウム−
硫黄電池に蘭する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a sodium chloride solution equipped with a battery active material purification device.
Related to sulfur batteries.
ナトリウム−硫黄電池は陰極活物質として溶融ナトリウ
ム、陽極活物質として溶融硫黄と多硫化ナトリウムを使
用し、電解質としてナトリウムイオンの電導性をもつ固
体電解質枠を用いたものである。この固体電解質は、ガ
ラス、または、セラミックスにより構成されるが、特に
β−アルミナ（？Ｖａ２０・１１ Ａ Ｑ ｚｏｓ＞お
よびβ′−アルミナ（Ｎａｘｏ・５ＡＲＯａ）はナトリ
ウムイオンの伝導性が大きいので、現在開発中の本電池
の大部分がこれを電解質として使用している（特開昭６
０−１７８６８号公報参照）
〔発明が解決しようとする問題点〕
現在研究開発中のナトリウム−硫黄電池では、ナトリウ
ム中に含まれる不純物に起因したβ′−アルミナ等の固
体ｆｆ１Ｍ質の破損がしばしば発生し電池寿命の低下を
招いている。このため、ナトリウム−硫ｆＩｔ電池の実
用化が実現しないのが現状である。電池寿命を左右する
不純物（カリウム、カルシウム、シリコン、＃１素など
）を除去するには、コールドトラップ法や蒸留法などが
考えられる。A sodium-sulfur battery uses molten sodium as a cathode active material, molten sulfur and sodium polysulfide as anode active materials, and a solid electrolyte frame with sodium ion conductivity as an electrolyte. This solid electrolyte is composed of glass or ceramics, but β-alumina (?Va20・11 A Q zos>) and β′-alumina (Naxo・5AROa) have high conductivity for sodium ions, so they are currently Most of the batteries currently under development use this as an electrolyte (Japanese Unexamined Patent Publication No. 6
(Refer to Publication No. 0-17868) [Problems to be solved by the invention] In sodium-sulfur batteries currently under research and development, solid ff1M materials such as β'-alumina often break due to impurities contained in sodium. This causes a decrease in battery life. For this reason, the present situation is that sodium-sulfur fIt batteries have not been put into practical use. To remove impurities that affect battery life (potassium, calcium, silicon, #1 element, etc.), cold trap methods and distillation methods can be considered.
しかし、これらの従来法をナトリウム−硫黄電池に適用
した場合、システムが煩雑になると共に、電池寿命を左
右する多種の不純物のうち、一部しか除去できない。ま
た、電池運転経過後、電池構成部材から溶出する不純物
の除去は困難である。However, when these conventional methods are applied to sodium-sulfur batteries, the system becomes complicated and only some of the various impurities that affect battery life can be removed. Furthermore, it is difficult to remove impurities eluted from the battery components after the battery has been operated.
゛□本発明の目的は、ナトリウム−硫黄電池の寿命を左
右する電池活物質中の不純物を除去することにより長寿
命なナトリウム−硫黄電池を提供することにある。゛□An object of the present invention is to provide a sodium-sulfur battery with a long life by removing impurities in the battery active material that affect the life of the sodium-sulfur battery.
上記目的は、固体電解質と同一組成の粒体、又は、多孔
質体を、活物質充填用配管、あるいは、電池容器内に設
け、活物質を精製することによす達成される。The above object is achieved by providing granules or porous bodies having the same composition as the solid electrolyte in an active material filling pipe or a battery container to purify the active material.
固体電解質に用いているβ′−アルミナ等の内部の不純
物濃度と電池活物質中の不純物濃度間には平衡状態が存
在し、β′−アルミナ等の固体電解質の破損に影響する
不純物は固体電解質内へ捕集されやすい、この性質によ
って、固体電解質と同一組成の粒体、又は、多孔質体を
活物質充填用配管、又は、電池容器内に設は不純物を除
去することにより長寿命のナトリウム−硫黄電池が得ら
れる。There is an equilibrium state between the impurity concentration inside the β'-alumina used in the solid electrolyte and the impurity concentration in the battery active material, and impurities that affect the damage of the solid electrolyte such as β'-alumina are contained in the solid electrolyte. Due to this property, sodium particles with the same composition as the solid electrolyte or porous materials can be installed in the active material filling piping or in the battery container to remove impurities and increase the longevity of sodium. - A sulfur battery is obtained.
以下、本発明の一実施例を第１図により説明する。固体
電解質（例えばβ′−アルミナ焼結体）３を境として、
内側に陰極活物質１であるナトリウム、外側に陽極活物
質２である硫黄を充填して電池を植成する。この電池活
物質を充填する際。An embodiment of the present invention will be described below with reference to FIG. With a solid electrolyte (for example, β'-alumina sintered body) 3 as a boundary,
A battery is implanted by filling the inside with sodium, which is the cathode active material 1, and the outside with sulfur, which is the anode active material 2. When filling this battery active material.
精製容器内に設けた不純物捕集材８である固体電解質３
と同一組成粒体、又は、多孔質体を通過させることによ
り固体電解質３の破損に影響する不純物を除去できる。A solid electrolyte 3 which is an impurity collecting material 8 provided in a purification container
Impurities that may affect the damage of the solid electrolyte 3 can be removed by passing the solid electrolyte 3 through a granular material having the same composition as the solid electrolyte 3 or a porous material.
図中では陰極活物質１の精製について記載したが、陽極
活物質２の精製についても適用できる。第２図に他の実
施例を示す、この実施例は、電池容器内に不純物捕集材
８である固体電解質３と同一組成の粒体、又は、多孔質
体、を設置したものである。この実施例により、電池運
転経過後、電池構成材から溶出する不純物を捕集できる
。Although the purification of the cathode active material 1 is described in the figure, the purification of the anode active material 2 is also applicable. Another embodiment is shown in FIG. 2, and in this embodiment, particles or porous bodies having the same composition as the solid electrolyte 3, which is the impurity trapping material 8, are placed inside the battery container. According to this embodiment, impurities eluted from the battery constituent materials can be collected after the battery has been operated.
第３図に示した実施例は、固体電解質３の陰極側表面に
不純物捕集材８を配した例である。ここでは、不純物捕
集材８に毛細管力によるナトリウムの吸上げ能力を持た
せることにより、固体電解質３のほぼ全面を電池反応に
利用できる。The embodiment shown in FIG. 3 is an example in which an impurity trapping material 8 is arranged on the surface of the solid electrolyte 3 on the cathode side. Here, almost the entire surface of the solid electrolyte 3 can be used for the battery reaction by providing the impurity collecting material 8 with the ability to suck up sodium by capillary force.
図中４は電池容器、５は電気絶縁材、６は活物質充填配
管、７は精製容器、９はバルブである。In the figure, 4 is a battery container, 5 is an electrical insulating material, 6 is an active material filling pipe, 7 is a purification container, and 9 is a valve.
本発明によれば、ナトリウム−硫黄電池の活物質中の不
純物を除去できるので、固体電解質のクラックの発生を
防止しナトリウム−硫黄電池の寿命を延ばすことができ
る。According to the present invention, since impurities in the active material of a sodium-sulfur battery can be removed, cracks in the solid electrolyte can be prevented and the life of the sodium-sulfur battery can be extended.
第１図ないし第３図は本発明の実施例を示すアトリウム
ー硫黄電池の断面図である。
１・・・陰極活物質、２・・・陽極活物質、３・・・固
体電解質、４・・・電池容器、５・・・電気絶縁材、６
・・・活物質充填配管、７・・・精製容器、８・・・不
純物捕集材、９・・・バルブ、１０・・・安全管。1 to 3 are cross-sectional views of an atrium-sulfur battery showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Cathode active material, 2... Anode active material, 3... Solid electrolyte, 4... Battery container, 5... Electrical insulating material, 6
. . . Active material filling pipe, 7. Purification container, 8. Impurity collection material, 9. Valve, 10. Safety pipe.
Claims (1)
て、ナトリウムを必須成分とする陰極活物質と、硫黄ま
たは多硫化ナトリウムを必須成分とする陽極活物質が接
するナトリウム−硫黄電池において、 前記活物質中の不純物捕集手段として、前記固体電解質
と同一組成の粒体、又は、多孔質体を用いることを特徴
とするナトリウム−硫黄電池。 ２、特許請求の範囲第１項において、 前記不純物捕集手段を活物質精製装置又は電池活物質充
填用配管及び電池容器内の少なくとも一箇所に設けるこ
とを特徴とするナトリウム−硫黄電池。 ３、特許請求の範囲第２項において、 前記不純物捕集手段を前記固体電解質の表面に設けるこ
とを特徴とするナトリウム−硫黄電池。[Claims] 1. Sodium-sulfur, in which a cathode active material containing sodium as an essential component and a cathode active material containing sulfur or sodium polysulfide as an essential component are in contact with a solid electrolyte through which sodium ions can pass. A sodium-sulfur battery, characterized in that a granule or a porous body having the same composition as the solid electrolyte is used as a means for collecting impurities in the active material. 2. The sodium-sulfur battery according to claim 1, wherein the impurity collecting means is provided at at least one location in an active material purification device, a battery active material filling pipe, and a battery container. 3. The sodium-sulfur battery according to claim 2, wherein the impurity collecting means is provided on the surface of the solid electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61213932A JPS6372073A (en) | 1986-09-12 | 1986-09-12 | Sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61213932A JPS6372073A (en) | 1986-09-12 | 1986-09-12 | Sodium-sulfur battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6372073A true JPS6372073A (en) | 1988-04-01 |
Family
ID=16647429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61213932A Pending JPS6372073A (en) | 1986-09-12 | 1986-09-12 | Sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6372073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284266U (en) * | 1988-12-19 | 1990-06-29 | ||
| US5538808A (en) * | 1989-07-21 | 1996-07-23 | The Tokyo Electric Power Co., Inc. | Sodium sulfur cell and process of manufacturing the same |
-
1986
- 1986-09-12 JP JP61213932A patent/JPS6372073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284266U (en) * | 1988-12-19 | 1990-06-29 | ||
| US5538808A (en) * | 1989-07-21 | 1996-07-23 | The Tokyo Electric Power Co., Inc. | Sodium sulfur cell and process of manufacturing the same |
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