JPS63166151A - Silver oxide-lithium battery - Google Patents
Silver oxide-lithium batteryInfo
- Publication number
- JPS63166151A JPS63166151A JP61314415A JP31441586A JPS63166151A JP S63166151 A JPS63166151 A JP S63166151A JP 61314415 A JP61314415 A JP 61314415A JP 31441586 A JP31441586 A JP 31441586A JP S63166151 A JPS63166151 A JP S63166151A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- silver oxide
- separator
- lithium battery
- thickness
- 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
- OWDZAGQHRXFNID-UHFFFAOYSA-N lithium;oxosilver Chemical compound [Li].[Ag]=O OWDZAGQHRXFNID-UHFFFAOYSA-N 0.000 title claims description 12
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- 239000012811 non-conductive material Substances 0.000 claims description 8
- 229910001923 silver oxide Inorganic materials 0.000 claims description 8
- 229910000108 silver(I,III) oxide Inorganic materials 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract 3
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000010137 moulding (plastic) Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WUALQPNAHOKFBR-UHFFFAOYSA-N lithium silver Chemical compound [Li].[Ag] WUALQPNAHOKFBR-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/34—Gastight accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/30—Deferred-action cells
- H01M6/32—Deferred-action cells activated through external addition of electrolyte or of electrolyte components
-
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は正極に酸化銀または過酸化銀、負極に金属リチ
ウムを使用し、電解液として水酸化リチウムの如きアル
カリ水溶液を供給して活性化させる酸化銀−リチウム電
池に関するもので、さらに詳しく言えばこの電池に使用
される積層されたバイポーラ電極の緊圧保持に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention uses silver oxide or silver peroxide for the positive electrode, metallic lithium for the negative electrode, and supplies an alkaline aqueous solution such as lithium hydroxide as an electrolyte to activate the oxidation process. This invention relates to silver-lithium batteries, and more specifically, to maintaining the tension of stacked bipolar electrodes used in these batteries.
従来技術とその間ｒ点
高速水中航走体の推進動力源用の電池は、大電流を短時
間に放電させる必要性から、負極と正極とが電導膜を介
して接合されてなるバイポーラ極板がセパレータを介在
させて積層され、電解液が供給されることにより活性化
される電池が多く、その正極には酸化銀か過酸化銀が使
用される・このようなバイポーラ極板は第４図の如き構
成からなる。すなわち第４図において、酸化銀または過
酸化銀の粉末に結着剤としてのテフロンを混合してシー
ト状にした正極１と金属リチウムからなる負極２とが鉄
またはニッケル箔からなる電導膜３の両面に密着され、
この電導Ｍ５の周縁部にはプラスチックからなる周縁ス
ペーサー４が接着されている。金属リチウムからなる負
極２と電導Ｉ！！３とはプレスすることにより容易に圧
着することができるが、正極１と電導Ｎ３とは圧着が困
難であるため、接触抵抗が増大しない程度に部分的に接
着されて保持されている。Batteries used as propulsion power sources for high-speed underwater vehicles require a bipolar plate in which a negative electrode and a positive electrode are joined via a conductive film because of the need to discharge large currents in a short period of time. Many batteries are stacked with separators in between and are activated by supplying an electrolyte, and the positive electrode uses silver oxide or silver peroxide. Such bipolar plates are shown in Figure 4. It consists of the following structure. That is, in FIG. 4, a positive electrode 1 made of a sheet of silver oxide or silver peroxide powder mixed with Teflon as a binder and a negative electrode 2 made of metallic lithium are connected to a conductive film 3 made of iron or nickel foil. Closely attached to both sides,
A peripheral spacer 4 made of plastic is adhered to the peripheral edge of the conductive M5. Negative electrode 2 made of metallic lithium and conductive I! ! 3 can be easily crimped by pressing, but the positive electrode 1 and the conductive material N3 are difficult to crimped, so they are partially bonded and held to such an extent that contact resistance does not increase.
上記の如きパイボーフ極板とセパレータとが交互に積層
されてなる酸化銀−リチウム電池を放電させると、負極
２の金属リチウムが起電反応および電解液中の水との直
接反応により、水酸化リチウムになって電解液中に溶解
するため、金属リチウムは放電の進行とともに薄くなり
、極群の緊圧が低下する。そのため正極１と電導膜３と
の接触状態が悪化し、第５図のように接触不良による電
圧降下や不安定現象な生じるという欠点があった。なお
第５図の放電特性図は、１０セル形電池を電流密度ＩＡ
／ｃイで放電させた時のものである。When a silver oxide-lithium battery consisting of Paibov electrode plates and separators as described above are alternately laminated, when the silver oxide-lithium battery is discharged, the metallic lithium in the negative electrode 2 undergoes an electromotive reaction and a direct reaction with water in the electrolyte, causing lithium hydroxide. The metal lithium becomes thinner as the discharge progresses and dissolves in the electrolyte, reducing the tension in the electrode group. Therefore, the contact condition between the positive electrode 1 and the conductive film 3 deteriorates, resulting in a drawback that a voltage drop or instability phenomenon occurs due to poor contact as shown in FIG. The discharge characteristic diagram in Figure 5 shows a 10-cell battery at a current density IA.
This is what happens when discharging at /c A.
上記欠点を解消するものとして、特公昭５８−１６３０
４号公報には、積層されたバイボーフ極板をスプリング
やベローズなどで押圧し、正極、負極間の距離を一定に
しようとする方法が記載されている。しかしながらこの
方法では、放電によって負極２の金属リチウムが消耗す
ると、表面に凹凸を生じて反応が不均一になったり、凸
部がセパレータを貫通して内部短絡を引き起こすという
危険性を有していた。また電池の構造が複雑になり、重
量効率や体積効率を低下させるという欠点があった。As a solution to the above drawbacks,
Publication No. 4 describes a method in which the distance between the positive electrode and the negative electrode is made constant by pressing stacked Bybov electrode plates with a spring, bellows, or the like. However, with this method, when the metallic lithium of the negative electrode 2 is consumed due to discharge, there is a risk that the surface becomes uneven and the reaction becomes uneven, or that the protrusions penetrate the separator and cause an internal short circuit. . Furthermore, the structure of the battery becomes complicated, resulting in a decrease in weight efficiency and volumetric efficiency.
発明の目的
本発明は上記欠点を解消するもので、簡単な構成で放電
中の極群の緊圧低下を防止することにより、放電中の電
圧降下や不安定現象の生じない酸化銀−リチウム電池を
得ることを目的とする・
発明の構成
本発明の酸化銀−リチウム電池は、複数個の貫通孔を設
けた負極の金属リチウムを電導膜の一方の面に圧着する
とともに、前記貫通孔に厚みが少なくとも負極とセパレ
ータの厚みの和以上の非電導性材料を埋設し、シート状
に成形した正極の酸化銀または過酸化銀を前記電導膜の
他方の面に密着させ、セパレータを介在させて積層した
ものである。OBJECT OF THE INVENTION The present invention solves the above-mentioned drawbacks, and provides a silver oxide-lithium battery that does not cause voltage drop or instability during discharge by preventing a decrease in the pressure of the electrode group during discharge with a simple structure. Structure of the Invention In the silver oxide-lithium battery of the present invention, metallic lithium as a negative electrode having a plurality of through holes is bonded to one surface of a conductive film, and a thickness is formed in the through holes. is embedded with a non-conductive material whose thickness is at least greater than the sum of the thickness of the negative electrode and the separator, and silver oxide or silver peroxide of the positive electrode formed into a sheet is brought into close contact with the other surface of the conductive film, and laminated with a separator interposed. This is what I did.
実施例
以下実施例により説明する。第１図は本発明の酸化銀−
リチウム電池に使用されるパイボーフａ板の正面図（ｂ
）とＢ−Ｂ’断面図（ａ）で、第４図と共通する部分に
は同じ符号を付している＠第１図において、負柾２の金
属リチウムに設けた複数個の貫通孔５に非電導性材料と
してのプラスチックを円柱状に成形した成形品６を埋設
している。この成形品６は厚みを負極２とセパレータ９
の厚みの和にほぼ等しくシ、電導膜６の一方の面に当接
するまでリチウム極に貫通させる。また前記電導膜３の
他方の面には、シート状に成形された正極１の酸化銀ま
たは過酸化銀を密着する。ここで端部の正極あるいは負
極は正極集電板８あるいは負極集電板７に密着された電
導膜３に酸化銀または過酸化銀からなる正極あるいはリ
チウムからなる負極が密着されて構成されている。この
ように構成されたパイポーフ極板が第２図のようにセパ
レータ９を介して積層され、電解液出口１０と電解液人
口１１とを有する電Ｗ１１２内に収納されて電池が構成
される。EXAMPLES The present invention will be explained below using examples. Figure 1 shows the silver oxide of the present invention.
Front view of Paiboff A plate used in lithium batteries (b
) and BB' cross-sectional view (a), parts common to those in FIG. 4 are given the same reference numerals. In FIG. A molded product 6 made of plastic as a non-conductive material is embedded in the cylinder. This molded product 6 has a thickness of negative electrode 2 and separator 9.
The lithium electrode is made to penetrate approximately equal to the sum of the thicknesses of the conductive film 6 until it comes into contact with one surface of the conductive film 6. Further, on the other surface of the conductive film 3, silver oxide or silver peroxide of the positive electrode 1 formed into a sheet is closely attached. Here, the positive electrode or the negative electrode at the end is constituted by a positive electrode made of silver oxide or silver peroxide, or a negative electrode made of lithium, in close contact with the conductive film 3 which is in close contact with the positive current collector plate 8 or the negative current collector plate 7. . The Pipof electrode plates constructed in this way are stacked with a separator 9 interposed therebetween as shown in FIG. 2, and housed in a cell W112 having an electrolyte outlet 10 and an electrolyte outlet 11 to form a battery.
上記の如き構成とすることにより、放電が進行して負極
２のリチウムが薄くなっても、プラスチックを円柱状に
成形した成形品６からなる非電導性材料によって極群の
緊圧は一定に保持よ
されるので、第５６１７のように接触不良になる電圧降
下や不安定現象は生じることはなく、安定した特性が得
られる。With the above configuration, even if the lithium in the negative electrode 2 becomes thinner as the discharge progresses, the tension in the electrode group is maintained constant by the non-conductive material made of the plastic molded product 6 into a cylindrical shape. Therefore, voltage drops and unstable phenomena that cause poor contact as in No. 5617 do not occur, and stable characteristics can be obtained.
次に第３図は本発明の酸化銀−リチウム電池に使用され
るパイボーフ極板の他の実施例図で、非電導性材料とし
てのゴム球６′を負極２の金属リチウムに設けた貫通孔
５に埋設したものである。このゴム球６′は直径を負極
２とセパレータ９の厚みの和より大きくシ、積層時にゴ
ム球６′の直径が前記厚みの和と等しくなるまで圧縮し
て電槽１２内に収納し、電池を構成するものである。こ
のような構成としても第１図のバイポーラ極板を使用し
た時と同様の効果が得られる。Next, FIG. 3 shows another embodiment of the Paibov electrode plate used in the silver oxide-lithium battery of the present invention, in which a rubber ball 6' as a non-conductive material is provided with a through hole in the metal lithium of the negative electrode 2. It was buried in No. 5. The rubber bulb 6' has a diameter larger than the sum of the thicknesses of the negative electrode 2 and the separator 9, and is compressed during stacking until the diameter of the rubber bulb 6' becomes equal to the sum of the thicknesses, and then stored in the battery case 12. It constitutes. Even with this configuration, the same effect as when using the bipolar plate shown in FIG. 1 can be obtained.
なお上記各実施例における非電導性材料の形状は特に限
定するものではなく、厚みが少なくとも負極２とセパレ
ータ９の厚みの和以上で、積層して押圧効果が得られる
ものであればどのようなものでもよい。Note that the shape of the non-conductive material in each of the above examples is not particularly limited, and any material can be used as long as the thickness is at least the sum of the thicknesses of the negative electrode 2 and the separator 9 and that a pressing effect can be obtained when laminated. It can be anything.
発明の効果
実施例において詳述した如く１本発明の酸化銀−リチウ
ム電池は、負極に非１導性材料を埋設するだけで極群の
緊圧を一定に保持することができるので、安定した特性
を得ることができる０Effects of the Invention As detailed in the Examples, the silver oxide-lithium battery of the present invention can maintain a constant pressure in the electrode group simply by embedding a non-conducting material in the negative electrode, so it is stable. Characteristics can be obtained 0
第１図は本発明の酸化銀−リチウム電池に使用されるバ
イポーラ極板の一実施例図、第２図は本発明電池の断面
図、第３図は本発明電池に使用されるバイポーラ極板の
他の実施例図、第４図は従来の酸化銀−リチウム電池に
使用されるバイポーラ極板図、第５図は電池の放電特性
図である。
１・・・正極 ２・・・負極
３・・・電導膜 ４・・・周縁スペーサー５・・
・貫通孔 ６・・・プラスチック成形品６′・
・・ゴム球 ７・・・負極集電板８・・・正極
集電板 ９・・・セパレータ１２・・・電槽FIG. 1 is an embodiment of a bipolar plate used in the silver oxide-lithium battery of the present invention, FIG. 2 is a sectional view of the battery of the present invention, and FIG. 3 is a bipolar plate used in the battery of the present invention. FIG. 4 is a diagram of a bipolar plate used in a conventional silver oxide-lithium battery, and FIG. 5 is a diagram of the discharge characteristics of the battery. 1... Positive electrode 2... Negative electrode 3... Conductive film 4... Peripheral spacer 5...
・Through hole 6...Plastic molded product 6'・
...Rubber bulb 7...Negative electrode current collector plate 8...Positive electrode current collector plate 9...Separator 12...Battery container
Claims (3)
導膜の一方の面に圧着するとともに、前記貫通孔に厚み
が少なくとも負極とセパレータの厚みの和以上の非電導
性材料を埋設し、前記電導膜の他方の面にシート状に成
形した正極の酸化銀または過酸化銀を密着させ、セパレ
ータを介在させて積層したことを特徴とする酸化銀−リ
チウム電池。(1) A negative electrode metal lithium having a plurality of through holes is crimped onto one surface of a conductive film, and a non-conductive material having a thickness at least equal to or greater than the sum of the thicknesses of the negative electrode and the separator is buried in the through holes. A silver oxide-lithium battery, characterized in that silver oxide or silver peroxide as a positive electrode formed into a sheet is brought into close contact with the other surface of the conductive film and laminated with a separator interposed.
成形品で、厚みが負極とセパレータの厚みの和にほぼ等
しいことを特徴とする特許請求の範囲第１項記載の酸化
銀−リチウム電池。(2) The silver oxide-lithium battery according to claim 1, wherein the non-conductive material is a molded article made of plastic into a cylindrical shape, and the thickness is approximately equal to the sum of the thicknesses of the negative electrode and the separator. .
タの厚みの和以上であることを特徴とする特許請求の範
囲第１項記載の酸化銀−リチウム電池。(3) The silver oxide-lithium battery according to claim 1, wherein the non-conductive material is a rubber ball whose diameter is greater than or equal to the sum of the thicknesses of the negative electrode and the separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314415A JPS63166151A (en) | 1986-12-26 | 1986-12-26 | Silver oxide-lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314415A JPS63166151A (en) | 1986-12-26 | 1986-12-26 | Silver oxide-lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63166151A true JPS63166151A (en) | 1988-07-09 |
Family
ID=18053069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61314415A Pending JPS63166151A (en) | 1986-12-26 | 1986-12-26 | Silver oxide-lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63166151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9853325B2 (en) | 2011-06-29 | 2017-12-26 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10601074B2 (en) | 2011-06-29 | 2020-03-24 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10658705B2 (en) | 2018-03-07 | 2020-05-19 | Space Charge, LLC | Thin-film solid-state energy storage devices |
| US11527774B2 (en) | 2011-06-29 | 2022-12-13 | Space Charge, LLC | Electrochemical energy storage devices |
-
1986
- 1986-12-26 JP JP61314415A patent/JPS63166151A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9853325B2 (en) | 2011-06-29 | 2017-12-26 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10199682B2 (en) | 2011-06-29 | 2019-02-05 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10601074B2 (en) | 2011-06-29 | 2020-03-24 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US11527774B2 (en) | 2011-06-29 | 2022-12-13 | Space Charge, LLC | Electrochemical energy storage devices |
| US10658705B2 (en) | 2018-03-07 | 2020-05-19 | Space Charge, LLC | Thin-film solid-state energy storage devices |
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