JPS58142766A - Flat cell - Google Patents
Flat cellInfo
- Publication number
- JPS58142766A JPS58142766A JP57026228A JP2622882A JPS58142766A JP S58142766 A JPS58142766 A JP S58142766A JP 57026228 A JP57026228 A JP 57026228A JP 2622882 A JP2622882 A JP 2622882A JP S58142766 A JPS58142766 A JP S58142766A
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- acrylic acid
- butyrolactone
- acid copolymer
- ethylene
- 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
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 239000011255 nonaqueous electrolyte Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000011149 active material Substances 0.000 claims 2
- 239000002689 soil Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011888 foil Substances 0.000 abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- PDECINHTUQHWJM-UHFFFAOYSA-N lithium;trifluoroborane Chemical compound [Li].FB(F)F PDECINHTUQHWJM-UHFFFAOYSA-N 0.000 abstract 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 abstract 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 8
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- -1 lithium fluoroborate Chemical compound 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-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
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920003182 Surlyn® Polymers 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- OJKANDGLELGDHV-UHFFFAOYSA-N disilver;dioxido(dioxo)chromium Chemical compound [Ag+].[Ag+].[O-][Cr]([O-])(=O)=O OJKANDGLELGDHV-UHFFFAOYSA-N 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229920000554 ionomer Polymers 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
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- RXBXBWBHKPGHIB-UHFFFAOYSA-L zinc;diperchlorate Chemical compound [Zn+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O RXBXBWBHKPGHIB-UHFFFAOYSA-L 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は扁平電池、例えば負極にリチウム、マグネシウ
ム、カリウム、ナトリウムなどの活ｆ１軽金属、正極に
フッ化黒鉛、二酸化マンガン、三酸化モリブデン、クロ
ム酸銀、五酸化バナジウム。DETAILED DESCRIPTION OF THE INVENTION The present invention is a flat battery, for example, an active F1 light metal such as lithium, magnesium, potassium, or sodium is used as a negative electrode, and graphite fluoride, manganese dioxide, molybdenum trioxide, silver chromate, or vanadium pentoxide is used as a positive electrode.
硫化銅、酸化銅、硫化鉄などの各種酸化物、ハロゲン化
物、硫化物などを用い、電解液には有機溶媒に過塩素酸
リチウム、ホウフッ化リチウムなどの無機塩を溶解した
非水電解液を用いた電池要素を、感熱性接着剤を内面に
塗布した外装フィルムで密封した扁平電池に関するもの
である。Various oxides such as copper sulfide, copper oxide, and iron sulfide, halides, and sulfides are used, and the electrolyte is a non-aqueous electrolyte in which inorganic salts such as lithium perchlorate and lithium fluoroborate are dissolved in an organic solvent. This invention relates to a flat battery in which the battery element used is sealed with an exterior film coated with a heat-sensitive adhesive on the inner surface.
最近の小型軽肝な電子機器の発達により、その電源とし
ての電池も薄形化および軽量化が重要な課題となってい
る。例えばラジオやマイクロカセットなどは増々小智」
化、薄形化の方向に進んでいる。これらの電源としては
現在、単３４ノあるいは単４型のマンガン乾電池などが
使われているが、単３型乾電池は直径が１４．５ｍｍ＋
高さが５０．５ｍｍであり、単４型乾電池でも直径１０
．５ｍｎｚ高さが４４．５ｍｍあり、電源としてマンガ
ン乾電池を使用する場合は機器の薄形化は電池のサイズ
に制限されるようになり、ｒ）１４型乾電池を使用して
も１０．５ｍｍ１υ、下に薄形化すること目、不可能で
ある。With the recent development of small, lightweight electronic devices, it has become important to make the batteries that serve as their power sources thinner and lighter. For example, radios and micro cassettes are all very small.
The trend is toward thinning and thinning. Currently, AA or AAA size manganese batteries are used as power sources for these batteries, but AA batteries have a diameter of 14.5mm+.
The height is 50.5mm, and even a AAA battery has a diameter of 10mm.
．． 5mnz height is 44.5mm, and when using manganese dry batteries as a power source, making the device thinner is limited by the size of the battery. To make it thinner than the eye, it is impossible.
従来、このような問題に対処すべく、負極に亜鉛、正極
に二酸化マンガン、電解液に過塩素酸亜鉛などの無機塩
をに１解した水溶液系の電解液を用イ、外装フィルムで
封ｎ Ｌ ｋペーパーバッテリーが開発された。しかし
この電池は長期間保存すると電池が膨張するという問題
点があった。Conventionally, in order to deal with such problems, an aqueous electrolyte solution containing zinc for the negative electrode, manganese dioxide for the positive electrode, and an inorganic salt such as zinc perchlorate was used for the electrolyte, and the electrolyte was sealed with an exterior film. Lk paper battery was developed. However, this battery had a problem in that it expanded when stored for a long period of time.
第１図に７負極にリチウム、正極にフッ化黒鉛、電解液
としてγ−ブチロラクトンにホウフッ化リチウムを１モ
ル／ｐの濃度に溶解した非水電解液を用いた、非水電解
液系扁平電池と、前記二酸化マンガン、亜鉛を用いた水
溶液系の扁平電池との２０”Ｃにおける６００Ω連続放
電の性能を示したが、非水電解液系の扁平電池１は、水
溶液電解液系の扁平電池２に比べて同面積当たり６倍以
上の放電性能を示し、捷だ長期保存においても電池膨張
などの問題は生じない。Figure 1 shows 7 A nonaqueous electrolyte-based flat battery using lithium as the negative electrode, graphite fluoride as the positive electrode, and a nonaqueous electrolyte in which lithium borofluoride is dissolved in γ-butyrolactone at a concentration of 1 mol/p as the electrolyte. The performance of 600 Ω continuous discharge at 20"C with the aqueous flat battery using manganese dioxide and zinc was shown, but the non-aqueous electrolyte flat battery 1 is different from the aqueous electrolyte flat battery 2. It exhibits more than six times the discharge performance per the same area compared to the battery, and problems such as battery expansion do not occur even during long-term storage.
しかし、一般に接着剤は有機溶媒におかされやすく、非
水電解液系の扁平電池においてはその外装フィルムに塗
布する接着剤の選定が大きな問題である。However, adhesives are generally susceptible to organic solvents, and in non-aqueous electrolyte-based flat batteries, selecting the adhesive to be applied to the exterior film is a major problem.
本発明はγ−ブチロラクトンを電解液の溶媒とするとき
、外装フィルムに塗布する感熱性接着剤としてエチレン
−アクリル酸共重合体樹脂を用いることにより、樹脂フ
ィルムによる封口構造の信頼性を高めることを目的とし
たものである。The present invention aims to improve the reliability of the sealing structure using the resin film by using ethylene-acrylic acid copolymer resin as the heat-sensitive adhesive applied to the exterior film when γ-butyrolactone is used as the solvent for the electrolyte. This is the purpose.
第２図に本発明の扁平電池の一実施例を示す。FIG. 2 shows an embodiment of the flat battery of the present invention.
ニッケル箔からなる負極集電体３、リチウムンートから
なる負極活物質４、γ−ブチロラクトンを″ 溶媒と１
−こｈにホウフッ化リチウムを溶解した非水電解液を含
浸したセパレータ６、フッ化黒鉛からなる正極活物質６
およびアルミニウム箔からなる正極集電体７の電池構成
要素を順次積層し、これを感熱性接着剤としてエチレン
−アクリル酸共重合体樹脂を内面に塗布した外装フィル
ム８ａ。A negative electrode current collector 3 made of nickel foil, a negative electrode active material 4 made of lithium salt, γ-butyrolactone and a solvent 1
- a separator 6 impregnated with a non-aqueous electrolyte in which lithium borofluoride is dissolved; a positive electrode active material 6 made of graphite fluoride;
and an exterior film 8a in which the battery components of the positive electrode current collector 7 made of aluminum foil are sequentially laminated, and an ethylene-acrylic acid copolymer resin is applied to the inner surface using this as a heat-sensitive adhesive.
８ｂで液密に封口したものである。負極端子９および正
極端子１０はそれぞ九前記外装フィルムに孔をあけるこ
とにより、前記負極集電体３および正極集電体子を露出
させることにより設けられている。第３図に外装フィル
ム８ａ、８ｂの一例を示す。アルミニウム箔１２の両面
をポリエチレンテレフタレート樹脂フィルム１１．１３
でラミネートシ、内側のフィルム１３上に感熱性接着剤
としてエチレン−アクリル酸共重合体樹脂１４を塗布し
た４層構造のフィルムである。8b is sealed liquid-tightly. The negative electrode terminal 9 and the positive electrode terminal 10 are provided by exposing the negative electrode current collector 3 and the positive electrode current collector by making nine holes in the exterior film, respectively. FIG. 3 shows an example of the exterior films 8a and 8b. Polyethylene terephthalate resin film 11.13 is applied to both sides of aluminum foil 12.
It is a four-layered film in which an ethylene-acrylic acid copolymer resin 14 is applied as a heat-sensitive adhesive onto an inner film 13.
次表に前記外装フィルムの感熱性接着剤上してエチレン
−アクリル酸共重合体樹脂、アイオノマー樹脂であるサ
ーリン（三片ポリケミカル■製）およびアトマー（三片
石油化学工業（ハ）く）製）を用い、γ−ブチロラクト
ンを溶媒とした非水電解液を用いて扁平電池を構成した
ときの保存の様子を示す。すなわち６０゛ｃの環境下に
１か月放匿した場合の電池重量減程度を調べた。The following table shows the heat-sensitive adhesives used for the exterior film: ethylene-acrylic acid copolymer resin, ionomer resins Surlyn (manufactured by Mikata Polychemical Co., Ltd.) and Atmer (manufactured by Mikata Petrochemical Industry Co., Ltd.). ) and a non-aqueous electrolyte containing γ-butyrolactone as a solvent to form a flat battery. That is, the degree of weight loss of the battery was investigated when it was left in an environment of 60°C for one month.
重量減は電解液の飛散によるものであり、重量減率は初
期と６０℃で１か月保存後の電池の重量差を電解液重量
で割って求めたものである。このようにエチ１ツノーア
クリル酸共重合体樹脂は耐γ−ブチロラクトン性に優れ
ており、γ−ブチロラクトンを非水電解液の溶媒とする
ときの外装フィルムの感熱性接着剤として極めて有用で
ある。The weight loss is due to scattering of the electrolyte, and the weight loss rate is calculated by dividing the difference in weight between the initial battery and the battery after storage at 60° C. for one month by the weight of the electrolyte. As described above, the ethyl-acrylic acid copolymer resin has excellent resistance to γ-butyrolactone, and is extremely useful as a heat-sensitive adhesive for an exterior film when γ-butyrolactone is used as a solvent for a non-aqueous electrolyte.
第１図は従来の二酸化マンガンを用いた水溶液電解液系
扁平電池と、本発明における非水電解液系扁平電池の２
０′ｃにおける５００Ω連続放電の比較図、第２図は本
発明の実施例における扁平電池の部分断面図、第３図は
外装フィルムを示す拡大断面図である。
３・・・・・・負極集電体、４・・・・・・負極活物質
、５・・・・・・非水電解液を含浸保持したセパレータ
、６・・・・・・正極活物質、７・・・・・・正極集電
体、８ａ。
８ｂ、・・・・・外装フィルム、１１，１３・・・・・
・ポリエチレンテレフタレート樹脂、１２・・・・・・
アルミニウム箔、１４・・・・・・エチレン−アクリル
酸共重合体樹脂。Figure 1 shows two types of flat batteries: a conventional aqueous electrolyte-based flat battery using manganese dioxide and a non-aqueous electrolyte-based flat battery according to the present invention.
2 is a partial sectional view of a flat battery in an example of the present invention, and FIG. 3 is an enlarged sectional view showing an exterior film. 3... Negative electrode current collector, 4... Negative electrode active material, 5... Separator impregnated with non-aqueous electrolyte, 6... Positive electrode active material , 7... Positive electrode current collector, 8a. 8b,... Exterior film, 11, 13...
・Polyethylene terephthalate resin, 12...
Aluminum foil, 14...Ethylene-acrylic acid copolymer resin.
Claims (1)
に活物質を圧着した負極体との間に、γ−ブチロラクト
ンを溶媒とする非水電解液を含浸したセパレータを介在
させた電池要素を、多層樹脂フィルムの内面に感熱性接
着剤としてエチレン−アクリル酸共重合体樹脂を塗布し
た外装フィルムにより密封したことを特徴とする扁ゞト
電池。A separator impregnated with a nonaqueous electrolyte containing γ-butyrolactone as a solvent is interposed between the positive electrode body, which has an active material applied to the positive electrode current collector pot soil, and the negative electrode body, which has the active material pressed onto a negative electrode current collector. A flat battery characterized in that the battery element is sealed with an exterior film in which an ethylene-acrylic acid copolymer resin is applied as a heat-sensitive adhesive to the inner surface of a multilayer resin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026228A JPS58142766A (en) | 1982-02-19 | 1982-02-19 | Flat cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026228A JPS58142766A (en) | 1982-02-19 | 1982-02-19 | Flat cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58142766A true JPS58142766A (en) | 1983-08-24 |
Family
ID=12187490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57026228A Pending JPS58142766A (en) | 1982-02-19 | 1982-02-19 | Flat cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58142766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987244A (en) * | 2019-05-23 | 2020-11-24 | 瓦尔达微电池有限责任公司 | Production process for one or more button cells |
-
1982
- 1982-02-19 JP JP57026228A patent/JPS58142766A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987244A (en) * | 2019-05-23 | 2020-11-24 | 瓦尔达微电池有限责任公司 | Production process for one or more button cells |
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