JPS6255866A - Thin cell - Google Patents
Thin cellInfo
- Publication number
- JPS6255866A JPS6255866A JP60194161A JP19416185A JPS6255866A JP S6255866 A JPS6255866 A JP S6255866A JP 60194161 A JP60194161 A JP 60194161A JP 19416185 A JP19416185 A JP 19416185A JP S6255866 A JPS6255866 A JP S6255866A
- Authority
- JP
- Japan
- Prior art keywords
- hot melt
- melt adhesive
- beads
- electrode plate
- 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
- 239000004831 Hot glue Substances 0.000 claims abstract description 40
- 239000011324 bead Substances 0.000 claims abstract description 26
- 229920005601 base polymer Polymers 0.000 claims abstract description 8
- 229920000098 polyolefin Polymers 0.000 claims abstract description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000010248 power generation Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 11
- -1 for example Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- CFJRPNFOLVDFMJ-UHFFFAOYSA-N titanium disulfide Chemical compound S=[Ti]=S CFJRPNFOLVDFMJ-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
- 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
- H01M50/186—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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はホットメルト接着剤で絶縁封止する薄形電池
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a thin battery that is insulated and sealed with a hot melt adhesive.
厚さが１ 、０ｗｍ以下、特に厚さが０．７ｍ＋ａ以下
の薄形電池では、厚さに制約を受ける関係上、合成樹脂
製の封口体を金属容器の開口端部のかしめにより封口板
に圧接して封口する封止構造が採用できないため、発電
要素を正極板と負極板との間に介在させ、発電要素の周
縁部外方で正極板の周縁部と負極板の周縁部とを絶縁し
つつ封止する構造が採用されている（たとえば特開昭５
５−１２８２６８号公報）。For thin batteries with a thickness of 1.0 wm or less, especially 0.7 m+a or less, the synthetic resin sealing body is attached to the sealing plate by caulking the open end of the metal container due to thickness constraints. Since it is not possible to adopt a sealing structure that seals by pressing, the power generation element is interposed between the positive and negative plates, and the periphery of the positive and negative plates are insulated from the outside of the periphery of the power generation element. A structure is adopted in which the seal is sealed while
5-128268).
ところが、上記のごとくホットメルト接着剤で絶縁封止
する場合には、フィルム状のホットメルト接着剤を正極
板の周縁部と負極板の周縁部との間に介在させ、加圧加
西して接着するため、接着時に熔融したホットメルト接
着剤がその周辺部に押し出され、接着所望部位における
ホットメルト接着剤層の厚みが計画した厚みより薄（な
り、接着剤層による絶縁性が低下して、自己放電を引き
起こして電池性能が低下するという問題があった、特に
、接着力が良好で、かつ接着が容易なメルトフローレー
トの高いホットメルト接着剤はど上述のような厚み減少
による絶縁性の低下を引き起こしやすかった。However, when insulating and sealing with a hot melt adhesive as described above, a film of hot melt adhesive is interposed between the peripheral edge of the positive electrode plate and the peripheral edge of the negative electrode plate, and the adhesive is bonded by applying pressure. Therefore, during bonding, the melted hot melt adhesive is pushed out to the surrounding area, and the thickness of the hot melt adhesive layer at the desired bonding area becomes thinner than the planned thickness, resulting in a decrease in the insulation properties of the adhesive layer. In particular, hot melt adhesives with good adhesion and high melt flow rate, which are easy to bond, have the problem of causing self-discharge and deteriorating battery performance. It was easy to cause a decline.
本発明は上述した従来技術の問題点を解決するもので、
上記薄形電池の絶縁封止に使用するホットメルト接着剤
として、ガラスピーズなどの無機質ビーズを混入したホ
ットメルト接着剤を用いることによって、接着時の加圧
加熱によるホットメルト接着剤層の厚み減少を防止して
、絶縁性の良好な薄形電池を提供したものである。The present invention solves the problems of the prior art described above.
By using a hot melt adhesive mixed with inorganic beads such as glass beads as the hot melt adhesive used for insulating and sealing the above-mentioned thin battery, the thickness of the hot melt adhesive layer is reduced due to pressure heating during bonding. This provides a thin battery with good insulation.
上記のようにホットメルト接着剤中に混入する無機質ビ
ーズとしては、たとえばガラスピーズ、アルミナビーズ
、シリカビーズなどが用いられる、これらのビーズはほ
ぼ真球に近い微小粒体であり、ホットメルト接着剤のベ
ースポリマー中への分散が非常に良好である。そして、
これらの無機質ビーズの使用にあたっては、後述するよ
うに、ホ７）メルト接着剤が一般に薄いフィルム状に成
形して使用されるため、これらのビーズ中、特に粒径が
１〜（１）μ−のものを用いるのが好ましい。As mentioned above, as the inorganic beads mixed into the hot melt adhesive, for example, glass beads, alumina beads, silica beads, etc. are used. is very well dispersed in the base polymer. and,
When using these inorganic beads, as will be described later, (7) Melt adhesives are generally used after being formed into a thin film. It is preferable to use
また、ホットメルト接着剤中に混入するにあたっては、
同一粒径のものを用いるよりも上記の粒径範囲内で粒径
が異なるものを用いる方が、接着力の低下を招くことな
く多量に混入できるので好ましい、この無機質ビーズの
混入量は、無機質ビーズを含んだ状態でのホットメルト
接着剤全体中５〜２０重量％が好ましい、これは無機質
ビーズの混入量が前記範囲より少なくなると、熔融時の
流出を防止する効果が小さく、また前記範囲より多（な
ると接着力が低下するおそれがあるからである。Also, when mixing in hot melt adhesive,
It is preferable to use beads with different particle sizes within the above particle size range than to use particles of the same size because a large amount of inorganic beads can be mixed in without causing a decrease in adhesive strength. It is preferable to use 5 to 20% by weight of the entire hot melt adhesive including beads, because if the amount of inorganic beads mixed in is less than the above range, the effect of preventing leakage during melting will be small, and if the amount is less than the above range, This is because there is a risk that the adhesive strength will decrease if the adhesive strength is increased.
ホットメルト接着剤のベースポリマーとしては、通常、
極性基を導入した″ポリエチレン、ポリプロピレン、エ
チレン−プロピレンコポリマーや、アイオノマーなどの
変性ポリオレフィンが耐ガス透過性が優れていることか
ら好用さ・れる、特に、無水マレイン酸を置換基として
有する変性ポリオレフィンが良好な耐ガス透過性を有し
、かつ、接着強度も大きいことから好ましい。The base polymer for hot melt adhesives is usually
Modified polyolefins such as polyethylene, polypropylene, ethylene-propylene copolymers and ionomers with polar groups introduced are preferred because of their excellent gas permeation resistance, especially modified polyolefins having maleic anhydride as a substituent. is preferable because it has good gas permeability and high adhesive strength.
上記のように無機質ビーズを混入したホットメルト接着
剤は、通常、使用にあたってフィルム状にされる。Hot melt adhesives mixed with inorganic beads as described above are usually formed into a film before use.
本発明において、各種の粉末中、特にビーズを用いるの
は、ビーズの場合、前述のようにほぼ真球に近い微小粒
体であって、ホットメルト接着剤のベースポリマー中へ
の分散がよく、ホットメルト接着剤をたとえば厚さ３０
μ−程度の薄いフィルム状にした場合でも均一に分散し
ており、接着力の低下を招（ことが少ないからである。In the present invention, among various powders, beads are particularly used because, as mentioned above, beads are microscopic particles that are almost perfectly spherical and are easily dispersed in the base polymer of the hot melt adhesive. For example, the thickness of hot melt adhesive is 30 mm.
This is because even when it is formed into a film as thin as μ-thin, it is uniformly dispersed and is less likely to cause a decrease in adhesive strength.
つぎに本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第１図は本発明の薄形電池の一実施例を模式的に示す断
面図であり、第２図は上記第１図に示す電池の封止前の
状態を示す断面図である０図中、１は二硫化チタン（Ｔ
ｉＳ２）を活物質とする正極、２はリチウムからなる負
極、３は微孔性ポリプロピレンフィルムとポリプロピレ
ン不織布からなるセパレータであり、微孔性ポリプロピ
レンフィルムが主たるセパレータｆｉ能を発揮し、負極
２側に配置され、ポリプロピレン不織布は主として電解
液の吸収体として働く、電解液には４−メチル−１，３
−ジオキソラン６０容量％、１，２−ジメトキシエタン
３４．８容量％およびヘキサメチルホスホリックトリア
ミド５．２容量％からなる混合溶媒に１．１ＰＦ６を１
．０ ｍｏｌ／ １熔解した有機電解質溶液が使用され
ている。FIG. 1 is a cross-sectional view schematically showing an embodiment of the thin battery of the present invention, and FIG. 2 is a cross-sectional view showing the state of the battery shown in FIG. 1 before being sealed. , 1 is titanium disulfide (T
iS2) as an active material, 2 is a negative electrode made of lithium, 3 is a separator made of a microporous polypropylene film and a polypropylene nonwoven fabric, and the microporous polypropylene film exhibits the main separator fi function, The polypropylene nonwoven fabric mainly acts as an absorber for the electrolyte, and the electrolyte contains 4-methyl-1,3
- 1.1PF6 was added to a mixed solvent consisting of 60% by volume of dioxolane, 34.8% by volume of 1,2-dimethoxyethane and 5.2% by volume of hexamethylphosphoric triamide.
．． A 0 mol/1 dissolved organic electrolyte solution is used.
４は負極板であり、材質としては厚さ０ 、０３ｍ＋ｉ
のステンレス鋼板が使用されているが、容器状に形成さ
れ、その凹部内面にリチウム板を圧着して前記の負極２
が形成されている。５は正極板で、厚さ０．０５ｍｍで
、平面形状が３４１ＩＩＩ×１６ｍ−の長方形状のステ
ンレス鋼板よりなるものである。4 is a negative electrode plate, and its material has a thickness of 0.03m+i.
A stainless steel plate is used, which is formed into a container shape, and a lithium plate is pressed onto the inner surface of the recess to form the negative electrode 2.
is formed. Reference numeral 5 denotes a positive electrode plate, which is made of a rectangular stainless steel plate with a thickness of 0.05 mm and a planar shape of 341III x 16 m.
６は前記発電要素の周縁部外方で正極板５の周縁部と負
極板４の周縁部とを接着するホットメルト接着剤であり
、このホットメルト接着剤としては、無水マレイン酸を
置換基として有する変性ポリオレフィンをベースポリマ
ーとし、それに粒径１〜（１）μ−のガラスピーズを（
１）重量％混合したものが使用されている。なお、上記
ホットメルト接着剤のガラスピーズ混入前のメルトフロ
ーレート（１） ｇ ／ （１）ｍ１ｎであった。Reference numeral 6 denotes a hot melt adhesive for bonding the peripheral edge of the positive electrode plate 5 and the peripheral edge of the negative electrode plate 4 on the outer side of the peripheral edge of the power generation element, and this hot melt adhesive contains maleic anhydride as a substituent. The base polymer is a modified polyolefin with a particle size of 1 to (1) μ-.
1) A mixture of % by weight is used. The melt flow rate of the above hot melt adhesive before glass beads was mixed was (1) g/(1) m1n.
この電池の作製は、第２図に示すように、正極板５の周
縁部および負極板４の周縁部つまり鍔部に、前記のガラ
スピーズを混入させたホットメルト接着剤を厚さ３０μ
ｍのフィルム状に成形したものを予備接着しく第２図に
おいて、６ａは正極板５の周縁部に予備接着したホット
メルト接着剤、６ｂは負極板４の周縁の鍔部に予備接着
したホットメルト接着剤である。また、ホットメルト接
着剤６ａ、６ｂはそれぞれ正極板５の周縁部、負極板４
の鍔部の全周にわたって予備接着されるが、図面では、
簡略化のため、断面のみを図示した）、正極板５の内面
側に正極１を密着形成し、負極板４の凹部内面にリチウ
ムを圧着して負極２とし、電解液を注入し、その上にセ
パレータ３を載置し、これに正極板５を重ねて、ホット
メルト接着剤が介在する正極板５の周縁部と負極板４の
鍔部とを５ ｋｇ／ ｃｄで加圧しつつ１８０℃で（１
）秒間加熱して、正極板５の周縁部に予備接着しておい
たホ７）メルト接着剤６ａと負極板４の鍔部に予備接着
しておいたホットメルト接着剤６ｂとを接着することに
よって行われる。As shown in FIG. 2, this battery was manufactured by applying hot melt adhesive mixed with the glass beads to a thickness of 30 μm on the peripheral edge of the positive electrode plate 5 and the peripheral edge, that is, the collar, of the negative electrode plate 4.
In FIG. 2, 6a is a hot melt adhesive that is preliminarily bonded to the peripheral edge of the positive electrode plate 5, and 6b is a hot melt adhesive that is preliminarily bonded to the flange of the negative electrode plate 4. It is an adhesive. Further, the hot melt adhesives 6a and 6b are applied to the peripheral edge of the positive electrode plate 5 and to the negative electrode plate 4, respectively.
It is pre-glued around the entire circumference of the flange, but in the drawing,
For simplicity, only the cross section is shown), the positive electrode 1 is closely formed on the inner surface of the positive electrode plate 5, lithium is pressed onto the inner surface of the recessed part of the negative electrode plate 4 to form the negative electrode 2, an electrolyte is injected, and then The separator 3 was placed on the separator 3, the positive electrode plate 5 was placed on top of the separator 3, and the periphery of the positive electrode plate 5 where the hot melt adhesive was interposed and the flange of the negative electrode plate 4 were heated at 180° C. while applying a pressure of 5 kg/cd. (1
7) Bonding the melt adhesive 6a that has been preliminarily bonded to the peripheral edge of the positive electrode plate 5 by heating for seconds and the hot melt adhesive 6b that has been preliminarily bonded to the flange of the negative electrode plate 4. carried out by
上記電池の発電要素の厚さは０．４ｍ−で、電池は平面
形状が３４．５ｍａＸ１６．５ｍ−の長方形状をしてお
り、電池全体の厚さは０．５ａ＋ｍである。The thickness of the power generating element of the above battery is 0.4 m-, the battery has a rectangular planar shape of 34.5 ma x 16.5 m-, and the total thickness of the battery is 0.5 a+m.
上記電池を１ 、０００個製造し、また、比較のため、
実施例の電池に用いたボンドメルト接着剤とベースポリ
マーが同じで、ガラスピーズを混入していない変性ポリ
オレフィン系ホットメルト接着剤（メルトフローレー）
（１） ｇ ／ （１）ｍ１ｎ ）を用いたほかは上
記実施例の電池と同様の電池を１ 、０００個製造し、
電池製造直後にホットメルト接着剤層の絶縁不良（つま
り短絡して電池電圧の出ないもの）を調べた結果を第１
衷゛に示す。1,000 of the above batteries were manufactured, and for comparison,
A modified polyolefin hot melt adhesive (Melt Flowray) that has the same base polymer as the bond melt adhesive used in the battery of the example and does not contain glass beads.
(1)g/(1)m1n) was used, but 1,000 batteries were manufactured in the same manner as the battery of the above example, and
The first report was based on the results of investigating insulation defects in the hot-melt adhesive layer immediately after battery manufacture (i.e. short circuits and no battery voltage).
Shown on the inside.
第１表
第１表に示すように、本発明の電池は従来電池に比べて
絶縁不良の発生が少ない、このように、本発明の電池、
従来電池ともホットメルト接着剤に同じベースポリマー
を使用しながら、本発明の電池の絶縁不良の発生が少な
がったのは、ホットメルト接着剤中に混入したガラスピ
ーズにより、加圧下での接着時に溶融した接着剤がその
周辺に流出するのが防止された結果によるものと考えら
れる。Table 1 As shown in Table 1, the battery of the present invention has fewer insulation defects than the conventional battery.
Although the same base polymer is used in the hot melt adhesive for conventional batteries, the occurrence of insulation defects in the battery of the present invention was reduced due to the glass beads mixed in the hot melt adhesive, which allows the adhesive to be bonded under pressure. This is thought to be due to the fact that the melted adhesive was prevented from flowing out to the surrounding area.
なお、実施例では発電要素として、正極、負極、セパレ
ータおよび電解液からなるものを用いたが、発電要素は
正極、固体電解質、負極からなるものでもよい。In the examples, a power generation element consisting of a positive electrode, a negative electrode, a separator, and an electrolyte was used, but the power generation element may also be formed of a positive electrode, a solid electrolyte, and a negative electrode.
以上説明したように、本発明ではホットメルト接着剤中
への無機質ビーズの混入により、接着時の加圧加熱によ
るホットメルト接着剤の周辺部への流出を防止して、ホ
ットメルト接着剤層の厚み減少を防止し、正負極間の絶
縁性が高く、自己放電の少ない薄形電池を提供すること
ができた。As explained above, in the present invention, by mixing inorganic beads into the hot melt adhesive, it is possible to prevent the hot melt adhesive from flowing out to the peripheral area due to pressurization and heating during bonding, and to form a hot melt adhesive layer. It was possible to provide a thin battery with reduced thickness, high insulation between positive and negative electrodes, and less self-discharge.
一第１図は本発明の薄形電池の一実施例を示す断面図で
あり、第２図は第１図に示す電池の接着前を示す断面図
である。
ｌ・・・正極、 ２・・・負極、 ３・・・セパレータ
、４・・・負極板、 ５・・・正極板、 ６・・・ホッ
トメルト接着剤1 is a sectional view showing an embodiment of the thin battery of the present invention, and FIG. 2 is a sectional view showing the battery shown in FIG. 1 before being bonded. 1...Positive electrode, 2...Negative electrode, 3...Separator, 4...Negative electrode plate, 5...Positive electrode plate, 6...Hot melt adhesive
Claims (2)
電要素の周縁部外方で正極板と負極板を、無機質ビーズ
を混入したホットメルト接着剤で接着して絶縁封止した
ことを特徴とする薄形電池。(1) A power generation element was interposed between a positive electrode plate and a negative electrode plate, and the positive and negative electrode plates were bonded and insulated outside the periphery of the power generation element with a hot melt adhesive mixed with inorganic beads. A thin battery characterized by:
イン酸を置換基として有する変性ポリオレフィンである
特許請求の範囲第１項記載の薄形電池。(2) The thin battery according to claim 1, wherein the base polymer of the hot melt adhesive is a modified polyolefin having maleic anhydride as a substituent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60194161A JPS6255866A (en) | 1985-09-02 | 1985-09-02 | Thin cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60194161A JPS6255866A (en) | 1985-09-02 | 1985-09-02 | Thin cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6255866A true JPS6255866A (en) | 1987-03-11 |
Family
ID=16319936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60194161A Pending JPS6255866A (en) | 1985-09-02 | 1985-09-02 | Thin cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6255866A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1221734A2 (en) * | 2001-01-05 | 2002-07-10 | Nokia Corporation | Flexible battery structure |
| WO2003007401A1 (en) * | 2001-07-09 | 2003-01-23 | Hitachi Maxell, Ltd. | Battery |
| EP3340332A1 (en) * | 2016-12-23 | 2018-06-27 | The Swatch Group Research and Development Ltd | Battery and its method of fabrication |
| GB2578486A (en) * | 2018-09-28 | 2020-05-13 | Sumitomo Chemical Co | Flexible battery |
-
1985
- 1985-09-02 JP JP60194161A patent/JPS6255866A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1221734A2 (en) * | 2001-01-05 | 2002-07-10 | Nokia Corporation | Flexible battery structure |
| EP1221734A3 (en) * | 2001-01-05 | 2003-07-16 | Nokia Corporation | Flexible battery structure |
| WO2003007401A1 (en) * | 2001-07-09 | 2003-01-23 | Hitachi Maxell, Ltd. | Battery |
| US7524578B2 (en) | 2001-07-09 | 2009-04-28 | Hitachi Maxell, Ltd. | Battery comprising a flange formed at a peripheral edge and a protection circuit attached to the flange |
| EP3340332A1 (en) * | 2016-12-23 | 2018-06-27 | The Swatch Group Research and Development Ltd | Battery and its method of fabrication |
| GB2578486A (en) * | 2018-09-28 | 2020-05-13 | Sumitomo Chemical Co | Flexible battery |
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