JPH01239759A - Thin lithium battery - Google Patents
Thin lithium batteryInfo
- Publication number
- JPH01239759A JPH01239759A JP63066078A JP6607888A JPH01239759A JP H01239759 A JPH01239759 A JP H01239759A JP 63066078 A JP63066078 A JP 63066078A JP 6607888 A JP6607888 A JP 6607888A JP H01239759 A JPH01239759 A JP H01239759A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- current collector
- adhesive
- ethylene
- collector plate
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 17
- 229910052744 lithium Inorganic materials 0.000 title claims description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 20
- 239000004831 Hot glue Substances 0.000 claims abstract description 15
- 229920001577 copolymer Polymers 0.000 claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 229910000733 Li alloy Inorganic materials 0.000 claims 1
- 239000001989 lithium alloy Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 10
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract description 8
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 6
- 230000035699 permeability Effects 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 230000035515 penetration Effects 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- SMBQBQBNOXIFSF-UHFFFAOYSA-N dilithium Chemical compound [Li][Li] SMBQBQBNOXIFSF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical group CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound 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
- 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
- H01M50/183—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 of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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】
本発明は薄形リチウム電池に係わり、さらに詳しくはそ
の周縁部の接着封止に使用される接着剤の改良に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to thin lithium batteries, and more particularly to improvements in adhesives used to adhesively seal the peripheral edges of thin lithium batteries.
電池使用機器の小形、薄形化に伴い、それに使用する電
池も小形、薄形化することが要請され、現在では電池の
厚さを１．ｌ１以下にすることが要求されている。As devices that use batteries become smaller and thinner, the batteries used in them are also required to be smaller and thinner, and the thickness of batteries is now reduced to 1. It is required that it be less than l1.
ところが、厚さが１．０ｍｍ以下の薄形リチウム電池で
は、厚さに制約を受ける関係上、合成樹脂製のガスケッ
トを金属容器の開口端部のかしめにより封目板に圧接さ
せて封口する封止方法が採用できず、そのため、正極、
負極、セパレータなどの電池要素を正極集電板と負極集
電板との間に介在させ、正極集電板の周縁部と負極集電
板の周縁部とを接着剤で接着して、正極集電板と負極集
電板よを絶縁しつつ、両者の間隙を封止する封止方法が
採用されている。そして、この接着封止に使用する接着
剤として、従来はエチレン−酢酸ビニル共重合体をポリ
マー成分とするホットメルト接着剤が用いられていた（
例えば、特開昭５９−１０３２８０号公報）。However, for thin lithium batteries with a thickness of 1.0 mm or less, due to thickness restrictions, sealing is performed by pressing a synthetic resin gasket against the sealing plate by caulking the open end of the metal container. Therefore, the positive electrode,
Battery elements such as a negative electrode and a separator are interposed between the positive electrode current collector plate and the negative electrode current collector plate, and the peripheral edge of the positive electrode current collector plate and the peripheral edge of the negative electrode current collector plate are bonded with adhesive to form a positive electrode collector. A sealing method is used that insulates the electric plate and the negative current collector plate while sealing the gap between the two. As the adhesive used for this adhesive sealing, hot melt adhesives containing ethylene-vinyl acetate copolymer as a polymer component were conventionally used (
For example, Japanese Patent Application Laid-Open No. 59-103280).
しかしながら、上記のエチレン−酢酸ビニル共重合体を
ポリマー成分とするホントメルト接着剤（以下、エチレ
ン−酢酸ビニル共重合体系ホントメルト接着剤という）
は、耐ガス透過性が悪く、電池外部の水分（水蒸気）が
接着剤層を透過して電池内部に侵入し、負極のリチウム
と反応して負極表面に不働態膜を形成して電池の内部抵
抗を増加させたり、あるいは電解液溶媒が気化して接着
剤層を透過して電池外部へ揮散し、電解液組成に変動を
きたして内部抵抗を高くするという問題があった。However, true melt adhesives containing the above ethylene-vinyl acetate copolymer as a polymer component (hereinafter referred to as ethylene-vinyl acetate copolymer type true melt adhesives)
has poor gas permeability, and moisture (water vapor) from outside the battery penetrates the adhesive layer and enters the battery, reacts with the lithium of the negative electrode, forms a passive film on the negative electrode surface, and causes damage to the inside of the battery. There is a problem in that the resistance increases, or the electrolyte solvent vaporizes and permeates the adhesive layer to the outside of the battery, causing fluctuations in the electrolyte composition and increasing the internal resistance.
本発明は、従来使用のエチレン−酢酸ビニル共重合体系
ホットメルト接着剤が耐ガス透過性に欠けていたために
負極の劣化や電解液の組成変化が生じて電池の内部抵抗
が増加して電池性能の低下を引き起こしていたという問
題点を解決し、電池性能の低下が少ない信頼性の高い薄
形リチウム電池を提供することを目的とする。The present invention aims to improve battery performance by increasing the internal resistance of the battery due to deterioration of the negative electrode and changes in the composition of the electrolyte due to the lack of gas permeation resistance of conventionally used ethylene-vinyl acetate copolymer hot melt adhesives. The purpose of the present invention is to provide a highly reliable thin lithium battery with little deterioration in battery performance by solving the problem that caused a decrease in battery performance.
本発明は、電池周縁部の接着封止に使用する接着剤とし
て無水マレイン酸を１換基として有するエチレン−プロ
ピレン共重合体をポリマー成分とするホットメルト接着
剤を用いることによって、上記目的を達成するようにし
たものである。The present invention achieves the above object by using a hot melt adhesive whose polymer component is an ethylene-propylene copolymer having maleic anhydride as one substituent as an adhesive used for adhesively sealing the peripheral portion of a battery. It was designed to do so.
上記の無水マレイン酸を置換基として有するエチレン−
プロピレン共重合体をポリマー成分とするホットメルト
接着剤は、接着力が従来使用のエチレン−酢酸ビニル共
重合体系ホットメルト接着剤と同等またはそれ以上であ
り、しかも耐ガス透過性に優れているので、電池内部へ
の水分の侵入が少なく、かつ電池内部からの電解液溶媒
の揮散も少なくなり、したがって電池外部から侵入した
水分と負極リチウムとの反応による負極の劣化や、電解
液溶媒の電池外部への揮散による電解液の組成変化が抑
制されて、内部抵抗の増加などの電池性能の低下が少な
くなる。Ethylene having the above maleic anhydride as a substituent
Hot-melt adhesives containing propylene copolymer as a polymer component have adhesive strength equal to or higher than conventionally used ethylene-vinyl acetate copolymer-based hot-melt adhesives, and also have excellent gas permeation resistance. , there is less moisture intrusion into the battery, and less volatilization of the electrolyte solvent from inside the battery.Therefore, the deterioration of the negative electrode due to the reaction between moisture entering from the outside of the battery and the negative electrode lithium, and the electrolyte solvent being removed from the outside of the battery. Changes in the composition of the electrolytic solution due to volatilization are suppressed, and deterioration in battery performance such as an increase in internal resistance is reduced.
」二足の無水マレイン酸を置換基として有するエチレン
−プロピレン共重合体をポリマー成分とすルホットメル
ト接着剤は、上記エチレン−プロピレン共重合体のみで
構成するか、あるいは上記エチレン−プロピレン共重合
体にタンキファイヤ、可塑剤、酸化防止剤などの添加剤
を添加したものからなり、上記エチレン−プロピレン共
重合体のエチレン分率としては２５〜９８％のものが好
ましく、その市販品としては、例えば三菱油化■からＭ
ＯＤＩＣＨ−４００Ｆの商品名で市販されているものが
あげられる。"A hot-melt adhesive whose polymer component is an ethylene-propylene copolymer having two maleic anhydride substituents may be composed only of the above-mentioned ethylene-propylene copolymer, or may be composed of the above-mentioned ethylene-propylene copolymer alone. The ethylene-propylene copolymer preferably has an ethylene content of 25 to 98%, and its commercially available products include, for example, Mitsubishi Co., Ltd. Yuka ■ to M
One example is one commercially available under the trade name ODICH-400F.
（実施例〕 本発明の実施例を図面に基づいて説明する。(Example〕 Embodiments of the present invention will be described based on the drawings.
第１面は本発明の薄形リチウム電池の一実施例を模式的
に示す断面図である０図中、１は正極集電板で、厚さ０
．０５ｍ＋ｍのステンレス鋼板を用いて深さの浅い容器
状に成形したものからなり、その周縁部１ａは平坦な鍔
状に形成されていて、その幅は２１１１１で、中央の四
部の深さは０．３ｍｍであって、平面形状は１ｔ１６．
５ｍｍ、横３４．５ｍｍの長方形に形成されている。２
は正極で、この正極２は二酸化マンガンを活物質とし、
これに導電助剤としてりん状黒鉛と結着剤としてポリテ
トラフルオロエチレンを添加した正極合剤を加圧成形す
ることによって作製した厚さ０．２ｍｍで縦７ＩＩ＋１
、横２５ＩｎＩ１１の長方形状の成形体からなるもので
ある。３はポリプロピレン不織布からなるセパレータで
あり、４は負極で、この負ｐｉ４は厚さ０．１ｓａ＋、
縦７ ａｉｍ、横２５ａｍの長方形状のリチウム板を負
極集電板５に圧着し、そのリチウム板上に厚さ０．００
５ａ＋ｍで縦７１ＩＩ１１１横２５１の長方形状のアル
ミニウム板を圧着し、電池組立時にアルミニウム板側が
セパレータ３と接触するように配置し、電池組立後、上
記リチウムとアルミニウムとが電解液の存在下で電気化
学的に合金化するようにしたものである。負極集電板５
は厚さ０．０ｈａ＋のニッケル板からなり、平板状でそ
の平面形状は縦１６ｍｍ、横３４ｍｍの長方形に形成さ
れている。The first side is a cross-sectional view schematically showing an embodiment of the thin lithium battery of the present invention.
．． It is made of stainless steel plate of 0.5m+m and formed into a shallow container shape, and its peripheral edge 1a is formed into a flat flange shape, its width is 2111111, and the depth of the four central parts is 0.05m. 3mm, and the planar shape is 1t16.
It is formed into a rectangle with a width of 5 mm and a width of 34.5 mm. 2
is a positive electrode, and this positive electrode 2 uses manganese dioxide as an active material,
A positive electrode mixture with a thickness of 0.2 mm and a height of 7II
, a rectangular molded body with a width of 25 InI11. 3 is a separator made of polypropylene nonwoven fabric, 4 is a negative electrode, and this negative pi4 has a thickness of 0.1 sa+,
A rectangular lithium plate with a length of 7 aim and a width of 25 am is crimped onto the negative electrode current collector plate 5, and a thickness of 0.00 mm is placed on the lithium plate.
A rectangular aluminum plate measuring 71II by 111 by 251 by width is crimped with 5a+m, and when the battery is assembled, the aluminum plate side is placed in contact with the separator 3. After the battery is assembled, the lithium and aluminum are electrochemically bonded in the presence of an electrolyte. It is designed to be alloyed with other materials. Negative electrode current collector plate 5
is made of a nickel plate with a thickness of 0.0 ha+, and is flat and has a rectangular planar shape with a length of 16 mm and a width of 34 mm.
そして、電解液にはプロピレンカーボネートに過塩素酸
リチウムを１．Ｏｍｏｌ／ｊ！溶解した有機電解液が使
用されている。６は接着剤であり、この接着剤６は無水
マレイン酸を置換基として有するエチレン−プロピレン
共重合体をポリマー成分とするホットメルト接着剤〔三
菱油化１…０ＤＩＣ１ｌ−４００Ｆ（商品名）〕）であ
って、正極集電板１の平坦な鍔状周縁部１ａと負極集電
板５の周縁部５ａとを接着して、正極集ＴＬ仮１と負極
集電板５とを絶縁しつつ、両者の間の間隙を封止してい
る。そして、上記接着剤６は、電池作製にあたっては、
厚さ約３０Ｉ！ｍのフィルム状に成形したものが用いら
れ、それを方形のリング状に打ち抜いて、あらかじめ正
極集電板ｌの周縁部１ａと負極集電板５の周縁部５ａと
に分けて予備接着しておき、電池組立の最終工程で正極
集電板１の周縁部１ａに予備接着しておいた接着剤と負
極集電板５の周縁部５ａに予備接存しておいた接着剤と
を５ ｋｇ ／ ｃｄの加圧下、２００°Ｃで１０秒間
加熱することにより接着させ第１図に示すような状態に
したものである。Then, the electrolyte is propylene carbonate and lithium perchlorate. Omol/j! A dissolved organic electrolyte is used. 6 is an adhesive, and this adhesive 6 is a hot melt adhesive whose polymer component is an ethylene-propylene copolymer having maleic anhydride as a substituent [Mitsubishi Yuka 1...0DIC11-400F (trade name)]). The flat brim-shaped peripheral edge 1a of the positive electrode current collector plate 1 and the peripheral edge 5a of the negative electrode current collector plate 5 are adhered to insulate the positive electrode current collector TL temporary 1 and the negative electrode current collector plate 5, It seals the gap between the two. The adhesive 6 is used in battery production.
Approximately 30I thick! m is used, which is formed into a film shape, which is punched out into a rectangular ring shape, which is divided in advance into the peripheral edge 1a of the positive electrode current collector plate l and the peripheral edge part 5a of the negative electrode current collector plate 5, and is preliminarily bonded. 5 kg of the adhesive preliminarily attached to the peripheral edge 1a of the positive electrode current collector plate 1 and the adhesive preliminarily applied to the peripheral edge 5a of the negative electrode current collector plate 5 in the final process of battery assembly. / cd and heated at 200° C. for 10 seconds to form a state as shown in FIG. 1.
上記実施例に示す本発明の電池と、電池周縁部の接着封
止に従来使用のエチレン−酢酸ビニル共重合体系ホット
メルト接着剤を用いたほかは本発明の電池と同様に作製
した薄形リチウム電池（従来品）を６０’Ｃ１無加湿の
条件下および６０°Ｃ１相対湿度９０％の条件下でそれ
ぞれ４０日間貯蔵し、内部抵抗の変化を調べた。両電池
の上記貯蔵による内部抵抗の増加量を第１表に示す。な
お、両電池とも初度の内部抵抗はいずれも２０Ωであっ
た。The battery of the present invention shown in the above example and the thin lithium lithium manufactured in the same manner as the battery of the present invention except that a conventionally used ethylene-vinyl acetate copolymer hot melt adhesive was used to adhesively seal the battery periphery. The battery (conventional product) was stored for 40 days under 60'C1 non-humidified conditions and 60°C1 and 90% relative humidity, and changes in internal resistance were examined. Table 1 shows the increase in internal resistance of both batteries due to the storage. Note that the initial internal resistance of both batteries was 20Ω.
第 １ 表
第１表に示すように、本発明の電池はエチレン−酢酸ビ
ニル共重合体系ホットメルト接着剤を用いた従来品の電
池に比べて、いずれの条件下での貯蔵においても内部抵
抗増加が少なかった。Table 1 As shown in Table 1, the battery of the present invention shows an increase in internal resistance when stored under any conditions compared to conventional batteries using an ethylene-vinyl acetate copolymer hot melt adhesive. There were few.
以上説明したように、本発明では無水マレイン酸を宜換
基として存するエチレン−プロピレン共重合体をポリマ
ー成分とするホットメルト接着剤を薄形リチウム電池の
接着封止に用いることによって、電池外部の水分が電池
内部に侵入するのを抑制すると共に、電解液溶媒が電池
外部へ揮散するのを抑制して、電池性能の低下の少ない
、長期債転性の高い薄形リチウム電池を提供することが
できた。As explained above, in the present invention, by using a hot melt adhesive whose polymer component is an ethylene-propylene copolymer containing maleic anhydride as an optional group for adhesive sealing of a thin lithium battery, It is possible to provide a thin lithium battery that suppresses moisture from entering the inside of the battery and suppresses volatilization of the electrolyte solvent to the outside of the battery, resulting in less deterioration in battery performance and high long-term convertibility. did it.
第１図は本発明の薄形リチウム電池の一実施例を示す断
面図である。
１・・・正掻集電体、 １ａ・・・周縁部、 ２・・・
正極、３・・・セパレータ、 ４・・・負極、 ５
・・・負極集電板、 ５ａ・・・周縁部、 ６・・・接
着剤第１図
１・・・正極集電板
１ａ・・・周縁部
２・・・正極
３・・・セパレータ
４・・・負極
５・・・負極集電板
５ａ・・・周縁部
６・・・接着剤FIG. 1 is a sectional view showing an embodiment of the thin lithium battery of the present invention. 1... Positive current collector, 1a... Peripheral part, 2...
Positive electrode, 3...Separator, 4...Negative electrode, 5
...Negative electrode current collector plate, 5a...Peripheral part, 6...Adhesive Figure 1 1...Positive electrode current collector plate 1a...Peripheral part 2...Positive electrode 3...Separator 4. ...Negative electrode 5...Negative electrode current collector plate 5a...Peripheral part 6...Adhesive
Claims (1)
リチウムまたはリチウム合金からなる負極４と両極間に
介在するセパレータ３とを含む電池要素が配置され、両
極集電板１、５の対向する平坦状の周縁部１ａ、５ａで
接着剤６により接着封止された構造の薄形リチウム電池
において、上記接着封止に使用された接着剤６が無水マ
レイン酸を置換基として有するエチレン−プロピレン共
重合体をポリマー成分とするホットメルト接着剤である
ことを特徴とする薄形リチウム電池。(1) A battery element including a positive electrode 2, a negative electrode 4 made of lithium or a lithium alloy, and a separator 3 interposed between the two electrodes is arranged between the positive electrode current collector plate 1 and the negative electrode current collector plate 5, and the battery element is arranged between the positive electrode current collector plate 1 and the negative electrode current collector plate 5. In a thin lithium battery having a structure in which the opposing flat peripheral edges 1a and 5a of the plates 1 and 5 are adhesively sealed with an adhesive 6, the adhesive 6 used for the adhesive sealing replaces maleic anhydride. 1. A thin lithium battery characterized in that it is a hot melt adhesive whose polymer component is an ethylene-propylene copolymer as a base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066078A JPH01239759A (en) | 1988-03-18 | 1988-03-18 | Thin lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066078A JPH01239759A (en) | 1988-03-18 | 1988-03-18 | Thin lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01239759A true JPH01239759A (en) | 1989-09-25 |
Family
ID=13305455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63066078A Pending JPH01239759A (en) | 1988-03-18 | 1988-03-18 | Thin lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01239759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150013249A (en) * | 2012-05-08 | 2015-02-04 | 바텔리 메모리얼 인스티튜트 | Multifunctional cell for structural applications |
| WO2015115080A1 (en) * | 2014-01-30 | 2015-08-06 | 三洋電機株式会社 | Sealed storage battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255865A (en) * | 1985-09-02 | 1987-03-11 | Hitachi Maxell Ltd | Thin lithium cell |
-
1988
- 1988-03-18 JP JP63066078A patent/JPH01239759A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255865A (en) * | 1985-09-02 | 1987-03-11 | Hitachi Maxell Ltd | Thin lithium cell |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150013249A (en) * | 2012-05-08 | 2015-02-04 | 바텔리 메모리얼 인스티튜트 | Multifunctional cell for structural applications |
| JP2015520923A (en) * | 2012-05-08 | 2015-07-23 | バテル・メモリアル・インスティテュートＢａｔｔｅｌｌｅ Ｍｅｍｏｒｉａｌ Ｉｎｓｔｉｔｕｔｅ | Multifunctional cell for structural applications |
| WO2015115080A1 (en) * | 2014-01-30 | 2015-08-06 | 三洋電機株式会社 | Sealed storage battery |
| JPWO2015115080A1 (en) * | 2014-01-30 | 2017-03-23 | 三洋電機株式会社 | Sealed storage battery |
| US9685642B2 (en) | 2014-01-30 | 2017-06-20 | Sanyo Electric Co., Ltd. | Sealed storage battery |
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