JPS63181272A - Plastic battery - Google Patents
Plastic batteryInfo
- Publication number
- JPS63181272A JPS63181272A JP62011999A JP1199987A JPS63181272A JP S63181272 A JPS63181272 A JP S63181272A JP 62011999 A JP62011999 A JP 62011999A JP 1199987 A JP1199987 A JP 1199987A JP S63181272 A JPS63181272 A JP S63181272A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- positive electrode
- terminal portions
- plastic
- resin
- 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
- 239000004033 plastic Substances 0.000 title claims description 26
- 229920003023 plastic Polymers 0.000 title claims description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 12
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 239000003792 electrolyte Substances 0.000 claims description 9
- 229920001940 conductive polymer Polymers 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 239000000088 plastic resin Substances 0.000 claims 1
- -1 polyethylene Polymers 0.000 abstract description 13
- 229920005989 resin Polymers 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000004698 Polyethylene Substances 0.000 abstract description 6
- 229920000573 polyethylene Polymers 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 2
- 229910052744 lithium Inorganic materials 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920000128 polypyrrole Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920001197 polyacetylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910013075 LiBF Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012685 gas phase polymerization Methods 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
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000013585 weight reducing agent 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/121—Organic material
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/131—Primary casings, jackets or wrappings of a single cell or a single battery characterised by physical properties, e.g. gas-permeability or size
- H01M50/133—Thickness
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、少なくとも正極に高分子材料を用いたプラス
チック電池に関し、詳細には、電極および電解液を収容
する電槽の構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plastic battery using a polymeric material at least for the positive electrode, and more particularly to the structure of a battery case containing an electrode and an electrolyte.
この発明に関するプラスチック電池は、自動車、電化製
品等の電池を必要とする製品においてそのケース等に適
用するため薄型化が可能な電池として利用される。The plastic battery according to the present invention is used as a battery that can be made thinner so that it can be applied to cases, etc. of products that require batteries, such as automobiles and electrical appliances.
従来、電極として導電性高分子材料を用いたプラスチッ
ク電池が知られている。このプラスチック電池は鉛電池
に比較して開路電圧が大きく、しかも軽量であるため出
力密度が大きいという優れた利点を有する。Conventionally, plastic batteries using conductive polymer materials as electrodes are known. This plastic battery has excellent advantages over lead batteries in that it has a higher open circuit voltage, is lighter in weight, and has a higher output density.
高分子材料からなる電極は、正極および負極の両極に用
いられる場合と、負極をリチウムとして正極にのみ用い
られる。後者は、約３．７■と高い開路電圧を発生する
。Electrodes made of polymeric materials are used for both the positive and negative electrodes, and are used only for the positive electrode with lithium as the negative electrode. The latter generates a high open circuit voltage of about 3.7μ.
これらのプラスチック電池は、出力密度の高さから、軽
量化を必要とされる自動車、電化製品等への適用が検討
されている。Due to their high output density, these plastic batteries are being considered for application in automobiles, electrical appliances, etc. that require weight reduction.
そして、電槽は、従来の鉛バッテリーと同様の樹脂製の
箱型電槽が用いられている。この箱型電槽は、Ａｓ樹脂
、ポリプロピレン等を薄肉に成形して作られる。（例え
ば、「電池ハンドブック」；電気書院発行、３−１６〜
３−１８を参照）。The battery case is a resin box-shaped battery case similar to that of conventional lead-acid batteries. This box-shaped battery case is made by molding thin As resin, polypropylene, or the like. (For example, "Battery Handbook"; Published by Denkishoin, 3-16~
3-18).
なお、本出願人は、ポリプロピレン等の樹脂から構成し
た箱型電槽に正極としてポリピロールを用い、負極とし
てリチウムを用いたプラスチック電池を既に提案済であ
る（特願昭６０−１６４９１８号；未公知）。The present applicant has already proposed a plastic battery using polypyrrole as the positive electrode and lithium as the negative electrode in a box-shaped battery made of resin such as polypropylene (Japanese Patent Application No. 164918/1989; unknown) ).
しかしながら、上記のプラスチック電池においては、電
槽の隙間から水分、空気等が侵入して、電極、特に負極
のリチウムが徐々に劣化してしまう問題があった。However, the above-mentioned plastic battery has a problem in that moisture, air, etc. enter through gaps in the battery case, causing gradual deterioration of the electrodes, especially the lithium of the negative electrode.
これに対して、本出願人は、積層型電槽を備えたプラス
チック電池を別途提案している（本願と同日提出）。こ
のプラスチック電池においては、内層の樹脂の熱溶着よ
って電極の端子部分を密封している。ところが、熱溶着
による密封では端子部分と内層樹脂が接する部分の接着
力が弱く、長期にわたる密封性が必ずしも十分でない。In response, the present applicant has separately proposed a plastic battery equipped with a stacked battery case (filed on the same day as the present application). In this plastic battery, the terminal portions of the electrodes are sealed by thermal welding of the inner layer resin. However, in sealing by thermal welding, the adhesive force at the portion where the terminal portion and the inner layer resin come into contact is weak, and long-term sealing performance is not necessarily sufficient.
本発明の目的は、この積層型電槽を備えたプラスチッ
ク電池において、端子部分の密封性をさらに向上させる
ことにある。An object of the present invention is to further improve the sealing performance of the terminal portion in a plastic battery equipped with this laminated battery case.
そこで、本発明のプラスチック電池は、シール部分にエ
ポキシ樹脂を介在させることを特徴とする。Therefore, the plastic battery of the present invention is characterized in that an epoxy resin is interposed in the seal portion.
具体的には、本発明の構成は次の通りである。Specifically, the configuration of the present invention is as follows.
本発明は、少なくとも正極に導電性高分子材料を用い、
電解液に接触するように正極および負極を所定間隔で電
槽中に配設したプラスチック電池である。そして、軽金
属の薄板を外層とし電解液の腐食を受けない樹脂を内層
として積層し電槽を構成するとともに、正極および負極
の端子部分においてエポキシ樹脂を介在させて溶着した
シール部を設けである。The present invention uses a conductive polymer material for at least the positive electrode,
This is a plastic battery in which a positive electrode and a negative electrode are placed in a container at a predetermined interval so as to be in contact with an electrolyte. The battery case is constructed by laminating a light metal thin plate as an outer layer and a resin that is not corroded by the electrolyte as an inner layer, and seals are welded to the positive and negative terminals with epoxy resin interposed therebetween.
上記の構成において、外層の軽金属は、アルミニウムシ
ート等を用いることができる。また、内層の樹脂は、電
解液に対する耐蝕性を有するものであればよく、例えば
、ポリプロピレン、ポリエチレン、ポリエチレンテレフ
タレート等を用いることができる。In the above configuration, an aluminum sheet or the like can be used as the light metal of the outer layer. Further, the resin of the inner layer may be any resin as long as it has corrosion resistance against the electrolytic solution, and for example, polypropylene, polyethylene, polyethylene terephthalate, etc. can be used.
また、正極の導電性高分子材料は、ポリピロール、ポリ
チェニレン、ポリアニリン、ポリアセチレン、ポリチオ
フェン等を挙げることができ、これらの導電性高分子材
料は、別途集電体の表面に電解重合、気相重合（たとえ
ばポリアセチレン）等によって形成される。In addition, conductive polymer materials for the positive electrode include polypyrrole, polythenylene, polyaniline, polyacetylene, polythiophene, etc. These conductive polymer materials are separately applied to the surface of the current collector by electrolytic polymerization, gas phase polymerization ( For example, it is formed from polyacetylene) or the like.
そして、この集電体としては、導電性で電解液と反応す
ることのない材料であればよく、例えばアルミニウム板
等の金属材料をシート状に加工し。The current collector may be made of any material that is conductive and does not react with the electrolytic solution, such as a metal material such as an aluminum plate that is processed into a sheet shape.
たちの、カーボン繊維によって繊維間に間隔を有するよ
うにシート状に加工したもの等を挙げることができる。Examples include those processed into a sheet shape using carbon fibers such that there are spaces between the fibers.
なお、カーボン繊維は導電性を有するために、特に他の
導電性材料を被覆する必要はないが、より導電性を向上
させるために他の導電性材料を被覆したものを用いても
よい、その際の導電性材料としては、金、銀、銅等の金
属材料の他、Ｉｎ、Ｑ３ ＳｎＱ□の固溶体等を用いる
ことができる。そして、導電性材料は真空蒸着法、イオ
ンブレーティング、スパッタリング等の適宜手段によっ
てカーボン繊維の表面に形成することができる。Note that since carbon fibers have conductivity, it is not necessary to coat them with other conductive materials; however, in order to further improve conductivity, carbon fibers may be coated with other conductive materials. In addition to metal materials such as gold, silver, and copper, solid solutions of In and Q3SnQ□ can be used as the conductive material. The conductive material can be formed on the surface of the carbon fiber by appropriate means such as vacuum evaporation, ion blasting, and sputtering.
また、負極のリチウムは、たとえば、Ａｌ板の表面にリ
チウム薄膜を電解により析出させたものを用いることが
できる。Further, as the lithium for the negative electrode, for example, a thin lithium film deposited on the surface of an Al plate by electrolysis can be used.
また、非水電解液における電解質は、ホウフッ化リチウ
ム（ＬｉＢＦ＋）、過塩素酸リチウム（Ｌｉ ＣＩ Ｏ
＃）、Ｒａ Ｎ Ｃｊ！ ０４（Ｒ：アルキル基、以下
同じ） 、Ｒ４ＮＢＦａ 、Ｒａ ＮＰＦ６等を用いる
ことができる。これらの中で、ホウフッ化リチウムと漫
塩素酸リチウムは、負極をリチウムとした場合に用いら
れる。In addition, the electrolyte in the non-aqueous electrolyte is lithium borofluoride (LiBF+), lithium perchlorate (Li CI O
#), Ra N Cj! 04 (R: alkyl group, the same applies hereinafter), R4NBFa, RaNPF6, etc. can be used. Among these, lithium fluoroborate and lithium hachlorate are used when lithium is used as the negative electrode.
上述の本発明のプラスチック電池は、軽金属外層と樹脂
内層からなる積層電槽を備えており、端子部分にエポキ
シ樹脂を介在させて溶着によりシールされているので、
端子部分とエポキシ樹脂との密着性が極めて高く、外部
に水分、酸素は、外層および溶着部分に妨げられて電槽
内部に極めて侵入しにくくなる。The plastic battery of the present invention described above includes a laminated battery case consisting of a light metal outer layer and a resin inner layer, and the terminal portion is sealed by welding with epoxy resin interposed therebetween.
The adhesion between the terminal portion and the epoxy resin is extremely high, and moisture and oxygen from the outside are blocked by the outer layer and the welded portion, making it extremely difficult for them to enter the inside of the battery case.
次に、第１図ないし第３図に基づき、本発明にかかるプ
ラスチック電池の実施例を説明する。Next, examples of the plastic battery according to the present invention will be described based on FIGS. 1 to 3.
第１図は、第２図のＩ−Ｉ線矢視断面図であり、第１図
（ａ）は、シール部分の溶着前の図、第１図（ｂ）は、
シール部分の溶着後の図、第２図は、一部を破断したプ
ラスチック電池の斜視図、そして、第３図は、第２図に
おける■−■線矢視断面図である。FIG. 1 is a sectional view taken along the line II in FIG. 2, FIG. 1(a) is a view before welding of the seal portion, and FIG.
FIG. 2 is a partially cutaway perspective view of the plastic battery, and FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2.
第３図に示すように、本実施例におけるプラスチック電
池は、その電槽１０が外層のアルミニウムシート１２と
内層のポリエチレンシート１４を積層したラミネート状
のシートからなる。アルミニウムシート１２およびポリ
エチレンシート１４は、０．１ｆｌの厚さをそれぞれ有
しており、それらの間は、接着剤により接着されている
。電槽１０の内部には、電解液１６が封入されている。As shown in FIG. 3, the plastic battery according to this embodiment has a battery case 10 made of a laminated sheet made by laminating an aluminum sheet 12 as an outer layer and a polyethylene sheet 14 as an inner layer. The aluminum sheet 12 and the polyethylene sheet 14 each have a thickness of 0.1 fl, and are bonded together with an adhesive. An electrolytic solution 16 is sealed inside the battery case 10 .
電解液１６は、０．５Ｍ（モル／ｌ）の（ＬｉＢＦ４）
を炭酸プロピレンに溶解させたものを用いる。このホウ
フッ化リチウムは、０．５〜１．０Ｍの範囲で添加され
る。The electrolyte 16 is 0.5M (mol/l) (LiBF4)
Dissolved in propylene carbonate is used. This lithium borofluoride is added in a range of 0.5 to 1.0M.
この電解液１６中には、中央に導電性高分子からなる正
極１８を配置し、セパレータ２Ｑａ、ｂを介してリチウ
ムからなる負極２２ａ、ｂが配置される。なお、分かり
易くするために第１図において正極１８、セパレータ２
０８％ｂ％負極２２ａ、ｂの間を離間させて描いである
が、実際は、密着しているものである。正極１８は、厚
さ０．２鶴の可撓性を有するカーボングラファイトペー
パーからなる集電体２４上に正極活物質のポリピロール
２６を析出させたものである。負極２２ａ１ｂは、厚さ
０．１５ ｔｍのアルミニウム板２８ａ、ｂ上に負極活
物質のリチウム３Ｑａ、ｂを析出させたものである。ま
た、セパレータ２０ａＳｂは、濾紙からなる。In this electrolytic solution 16, a positive electrode 18 made of a conductive polymer is arranged at the center, and negative electrodes 22a and 22b made of lithium are arranged with separators 2Qa and 2Qb interposed therebetween. In addition, for the sake of clarity, the positive electrode 18 and separator 2 are shown in FIG.
08%b% Although the negative electrodes 22a and 22b are shown separated from each other, they are actually in close contact with each other. The positive electrode 18 is obtained by depositing polypyrrole 26 as a positive electrode active material on a current collector 24 made of flexible carbon graphite paper with a thickness of 0.2 mm. The negative electrode 22a1b is obtained by depositing lithium 3Qa, b as a negative electrode active material on aluminum plates 28a, b having a thickness of 0.15 tm. Furthermore, the separator 20aSb is made of filter paper.
これらの電極部は、第２図に示すように一方に正極１８
の端子３２を、他方に負極の端子３４ａ、ｂを電槽１０
の外へ突出させている。正極１８の端子３２は、カーボ
ングラファイトペーパーにステンレス板を取り付けて構
成される。These electrode parts have a positive electrode 18 on one side as shown in FIG.
terminal 32 of the battery case 10, and the negative terminals 34a, b of the other
It protrudes outside. The terminal 32 of the positive electrode 18 is constructed by attaching a stainless steel plate to carbon graphite paper.
これらの端子３２．３４ａＳｂは、第１図に示すように
、予めエポキシ樹脂層３６．３８を０．５鶴の厚さで塗
布しておいた。そして、アルミニウムシート１２の外側
より（図上矢印Ａ方向より）加圧し、１３０℃の加熱状
態で溶着、硬化させた。As shown in FIG. 1, these terminals 32, 34aSb were coated with an epoxy resin layer 36, 38 in advance to a thickness of 0.5 mm. Then, pressure was applied from the outside of the aluminum sheet 12 (from the direction of arrow A in the figure), and the aluminum sheet 12 was welded and cured under heating at 130°C.
上述のプラスチック電池を３つ接続して現在車載用の鉛
バッテリーであるＮ５４０Ｚと同等の性能である約２８
ＡＨの容量と約１２Ｖの電圧を備えるようして構成して
そのサイクル寿命を調べた。By connecting three of the above-mentioned plastic batteries, a battery of approximately 28.0
It was configured to have an AH capacity and a voltage of about 12V, and its cycle life was investigated.
サイクル寿命は、７００回であった。The cycle life was 700 times.
これと同時に比較例として、エポキシ樹脂３６．３８を
塗布しなかった点以外は本実施例と同じ材質の正極、負
極、電解液および電槽を用いてプラスチック電池を作製
し、同一の初期性能が得られるようにして試験を行った
。この比較例の電池のサイクル寿命は、５００回であっ
た。At the same time, as a comparative example, a plastic battery was manufactured using the same materials as the positive electrode, negative electrode, electrolyte, and battery case as in this example, except that epoxy resin 36.38 was not applied, and the same initial performance was obtained. The test was conducted as obtained. The cycle life of the battery of this comparative example was 500 cycles.
これにより、本実施例のプラスチック電池は、比較例に
対してサイクル寿命で約４０％の性能向上が達成された
ことが分かる。この性能向上は、ポリエチレンに比べて
エポキシ樹脂と端子のステンレス材との接着性が良いた
めに、密封性が向上したためと考えられる。As a result, it can be seen that the plastic battery of this example achieved about 40% performance improvement in cycle life compared to the comparative example. This improvement in performance is thought to be due to improved sealing performance due to better adhesion between the epoxy resin and the stainless steel material of the terminal than with polyethylene.
また、本実施例のプラスチック電池は、比較例のものと
同様その可撓性のために、車載場所の選択範囲が広がり
、例えば、エンジンフード内でもポデーの曲面部分に沿
わせて配置することができる。他にもボデーのルーフ内
部や、キャビン下部等へ埋め込むことができる。また、
自動車用のバッテリーだけではなく、ＴＶ等の電化製品
のケースにも適用することができ、その場合には、バッ
テリースペースの大幅な節約が可能となる。In addition, the plastic battery of this example, like that of the comparative example, is flexible, so it can be installed in a wider range of locations.For example, it can be placed along the curved surface of the pod even inside the engine hood. can. It can also be embedded inside the roof of the body or under the cabin. Also,
It can be applied not only to automobile batteries but also to the cases of electrical appliances such as TVs, in which case it is possible to significantly save battery space.
以上、本発明の特定の実施例について説明したが、本発
明は、この実施例に限定されるものではなく、特許請求
の範囲に記載の範囲内で種々の実施態様が包含されるも
のである。Although specific embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and includes various embodiments within the scope of the claims. .
以上より、本発明のプラスチック電池によれば、電槽内
への水分、酸素の侵入が極めてしにくく、電槽の密封性
がさらに向上される。また、樹脂の一部に代えて軽金属
を用いているので、電槽を薄型にすることができる。As described above, according to the plastic battery of the present invention, it is extremely difficult for moisture and oxygen to enter the battery case, and the sealing performance of the battery case is further improved. Furthermore, since a light metal is used in place of a portion of the resin, the battery case can be made thin.
第１図ないし第３図は、本発明にかかるプラスチック電
池の実施例を説明するための図面である。
第１図は、第２図のＩ−ｒ線矢視断面図であり、第１図
（ａ）は、シール部分の溶着前の図、そして、第１図（
ｂ）は、シール部分の溶着後の図である。
第２図は、一部を破断したプラスチック電池の斜視図で
ある。
第３図は、第２図における■−■線矢視断面図である。
１０−・・−・−・電槽
１２−−−−−−一外層（アルミニウムシート）１４−
・−内層（ポリエチレンシート）１６−・−電解液
１８−・−一一一・正極
２２ａ’、ｂ−−−・−・負極
３２．３４ ａ 、 ｂ−−−−−−−一端子３６．
３８−・・−エポキシ樹脂
出願人 トヨタ自動車株式会社
１Ｏ−−−ｔｒｉ！
１２−タトＪ（アルミニウムシート）
１４−一一円漫（ボリエ千しレシート）３２．３４ａ、
ｂ−鳩子1 to 3 are drawings for explaining an embodiment of a plastic battery according to the present invention. FIG. 1 is a cross-sectional view taken along the line I-r in FIG. 2, and FIG.
b) is a view after the seal portion has been welded. FIG. 2 is a partially cutaway perspective view of the plastic battery. FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2. 10-...--Battery case 12--Outer layer (aluminum sheet) 14-
-Inner layer (polyethylene sheet) 16--Electrolyte 18--111-Positive electrode 22a', b--Negative electrode 32.34 a, b--One terminal 36.
38--Epoxy resin applicant Toyota Motor Corporation 1O---tri! 12-Tato J (aluminum sheet) 14-11 Yenman (Bolier Senshi Receipt) 32.34a,
b-Hatoko
Claims (1)
触するように正極および負極を所定間隔で電槽中に配設
したプラスチック電池であって、軽金属の薄板を外層と
し電解液の腐食を受けない樹脂を内層として積層し電槽
を構成するとともに、正極および負極の端子部分におい
てエポキシ樹脂を介在させて溶着したシール部を設けた
ことを特徴とするプラスチック電池。A plastic battery in which at least the positive electrode is made of a conductive polymer material, and the positive and negative electrodes are placed in a battery case at predetermined intervals so as to be in contact with the electrolyte, and the outer layer is made of a thin plate of light metal and is not susceptible to corrosion by the electrolyte. What is claimed is: 1. A plastic battery characterized in that a battery case is formed by laminating plastic resin as an inner layer, and a seal portion is provided at the terminal portions of a positive electrode and a negative electrode by welding with an epoxy resin interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011999A JPS63181272A (en) | 1987-01-21 | 1987-01-21 | Plastic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011999A JPS63181272A (en) | 1987-01-21 | 1987-01-21 | Plastic battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63181272A true JPS63181272A (en) | 1988-07-26 |
Family
ID=11793285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62011999A Pending JPS63181272A (en) | 1987-01-21 | 1987-01-21 | Plastic battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1133781A1 (en) * | 1998-09-16 | 2001-09-19 | Energy Storage Systems Pty, Ltd | A flexible charge storage device |
-
1987
- 1987-01-21 JP JP62011999A patent/JPS63181272A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1133781A1 (en) * | 1998-09-16 | 2001-09-19 | Energy Storage Systems Pty, Ltd | A flexible charge storage device |
| EP1133781A4 (en) * | 1998-09-16 | 2007-01-10 | A flexible charge storage device |
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