JPH0451455A - Thin form cell - Google Patents
Thin form cellInfo
- Publication number
- JPH0451455A JPH0451455A JP2160216A JP16021690A JPH0451455A JP H0451455 A JPH0451455 A JP H0451455A JP 2160216 A JP2160216 A JP 2160216A JP 16021690 A JP16021690 A JP 16021690A JP H0451455 A JPH0451455 A JP H0451455A
- Authority
- JP
- Japan
- Prior art keywords
- electrode active
- active substance
- electricity collecting
- neg
- pos
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 239000004840 adhesive resin Substances 0.000 claims abstract description 7
- 229920006223 adhesive resin Polymers 0.000 claims abstract description 7
- 239000010419 fine particle Substances 0.000 claims description 11
- 239000007773 negative electrode material Substances 0.000 claims description 4
- 239000007774 positive electrode material Substances 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000010292 electrical insulation Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000007784 solid electrolyte Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 4
- 230000005611 electricity Effects 0.000 abstract 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 abstract 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は薄形電池の封口に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to the sealing of thin batteries.
従来技術とその問題点
従来、この種の薄形電池は第３図に示した如き構造であ
った。即ち正極活物質層、電解質層及び負極活物質層を
層状に重ねた発電要素の上下に正極集電体兼電槽及び負
極集電体兼電槽を配し、接着性樹脂と集電体兼電槽を一
本化したものである。Prior art and its problems Conventionally, this type of thin battery has had a structure as shown in FIG. That is, a positive electrode current collector/container case and a negative electrode current collector/container case are placed above and below a power generation element in which a positive electrode active material layer, an electrolyte layer, and a negative electrode active material layer are stacked in layers, and adhesive resin and a current collector/container case are placed above and below the power generating element. It is a single battery case.
しかし、電池の厚みが０．１ｍｍ程度の薄形電池におい
ては、電池周縁部の接着樹脂層が薄くなり正極集電体と
負極集電体が接触することによる短絡を生じ問題であっ
た。However, in a thin battery with a thickness of about 0.1 mm, the adhesive resin layer at the periphery of the battery becomes thin, resulting in a short circuit due to contact between the positive electrode current collector and the negative electrode current collector, which is a problem.
発明の目的
本発明は−Ｊ二部従来の問題点に鑑みなされたものであ
り、生産性及び信頼性に優れた薄形電池を捉供すること
を目的とするものである。OBJECTS OF THE INVENTION The present invention has been made in view of the problems of the -J Part 2 prior art, and an object of the present invention is to provide a thin battery with excellent productivity and reliability.
発明の構成
本発明は上記目的を達成するべく、
正極活物質、電解質及び負極活物資を層状に重ねた発電
要素に集電体兼電槽を配し、該周縁部を電気絶縁性を有
する微粒子を混入した接着性樹脂を用いて接着したこと
を特徴とする薄形電池である。Structure of the Invention In order to achieve the above object, the present invention provides a power generation element in which a positive electrode active material, an electrolyte, and a negative electrode active material are stacked in layers, and a current collector/container is arranged on the power generating element, and the peripheral part is covered with fine particles having electrically insulating properties. This is a thin battery characterized by being bonded using an adhesive resin mixed with.
更に、接着性樹脂が熱硬化性樹脂である前記の薄形電池
である。Furthermore, in the thin battery described above, the adhesive resin is a thermosetting resin.
更に、電気絶縁性を有する微粒子がセラミックス、ガラ
ス等の非金属材料である前記の薄形電池である。Further, in the thin battery described above, the electrically insulating fine particles are made of a non-metallic material such as ceramics or glass.
実施例 以下、本発明の詳細について実施例により説明する。Example Hereinafter, the details of the present invention will be explained with reference to Examples.
第１図は本発明の一実施例を示した薄形電池の要部断面
図、第２図は本発明の他の実施例を示した同ｌ、第３図
は従来の薄形電池の同図である。Fig. 1 is a cross-sectional view of main parts of a thin battery showing one embodiment of the present invention, Fig. 2 is a sectional view of a main part of a thin battery showing another embodiment of the present invention, and Fig. 3 is a sectional view of a conventional thin battery. It is a diagram.
１は正極、２は電解質層、３は負極、４は正極集電体、
５は負極集電体、６は封口樹脂、７は電気絶縁性微粒子
、７′は樹脂コーティングした電気絶縁性微粒子である
。1 is a positive electrode, 2 is an electrolyte layer, 3 is a negative electrode, 4 is a positive electrode current collector,
5 is a negative electrode current collector, 6 is a sealing resin, 7 is an electrically insulating fine particle, and 7' is a resin-coated electrically insulating fine particle.
実施例１
正極活物質は二酸化マンガンを主成分とし、高分子固体
電解質はポリエチレンオキシドに過塩素酸リチウムを加
えた、負極活物質はリチウムから成る。これらの発電要
素の上下にステンレス製集電体兼電槽を配し、各々の周
縁部を直径７０μｍの球状のアルミナの電気絶縁性微粒
子を混入したポリプロピレン系熱接着性樹脂を加熱、加
圧して封口した。第１図に要部断面を示した。この加熱
、加圧時に熱接着性樹脂が溶融しても画集電体間にアル
ミナ微粒子が介在するので正・負集電体が接触して短絡
不良を生しることがない。Example 1 The positive electrode active material was mainly composed of manganese dioxide, the polymer solid electrolyte was polyethylene oxide with lithium perchlorate added, and the negative electrode active material was made of lithium. Stainless steel current collectors/condensers are arranged above and below these power generation elements, and a polypropylene thermoadhesive resin mixed with spherical alumina electrically insulating fine particles with a diameter of 70 μm is heated and pressurized around the edges of each. It was sealed. Figure 1 shows a cross section of the main part. Even if the thermoadhesive resin melts during this heating and pressurization, since the alumina fine particles are present between the image current collectors, the positive and negative current collectors will not come into contact and cause a short circuit.
実施例２
正極、負極、電解質層集電体の構成は、実施例１と同様
であり、第２図に要部断面図を示した。Example 2 The configurations of the positive electrode, negative electrode, and electrolyte layer current collector were the same as in Example 1, and a cross-sectional view of the main parts is shown in FIG.
直径１０〜２０μｍのガラスの電気絶縁性の微粒子を用
い、粒子表面がポリプロピレン系熱接着性樹脂でコーテ
ィングされたものである。Electrically insulating fine particles of glass with a diameter of 10 to 20 μm are used, and the particle surfaces are coated with a polypropylene thermoadhesive resin.
比較例
従来の薄形電池であり、正極、負極、電解質層集電体の
構成は実施例１と同様であり、第３図に要部断面を示し
た。尚、ポリプロピレン系熱接着性樹脂には、電気絶縁
性の微粒子を含まない。Comparative Example This was a conventional thin battery, and the configurations of the positive electrode, negative electrode, and electrolyte layer current collector were the same as in Example 1, and a cross section of the main part is shown in FIG. Note that the polypropylene thermoadhesive resin does not contain electrically insulating fine particles.
実施例１による電池（本発明■）と実施例２による電池
（本発明■）と比較例に示した従来の電池を各々１００
個づつ製作し短絡不良を調べた。The battery according to Example 1 (invention ■), the battery according to Example 2 (invention ■), and the conventional battery shown in Comparative Example were each tested at 100
We manufactured each one individually and checked for short circuit defects.
本発明の電池はいずれも短絡不良は生じなかった。これ
に対して、従来の電池は１７個が短絡を生した。No short-circuit failure occurred in any of the batteries of the present invention. In contrast, 17 conventional batteries experienced short circuits.
このように、本発明の電池では、加熱、封口に際して、
短絡不良を生しないので、生産において生産速度を高く
することができる。In this way, in the battery of the present invention, during heating and sealing,
Since no short-circuit defects occur, production speed can be increased.
発明の効果
」−述した如く、本発明は生産性及び信軌性に優れた薄
形電池を提供することが出来るので、その工業的価値は
極めて大である。"Effects of the Invention" - As described above, the present invention can provide a thin battery with excellent productivity and reliability, and therefore has extremely great industrial value.
第１図は本発明の一実施例を示した薄形電池の要部断面
図、第２図は本発明の他の実施例を示した同図、第３図
は従来の薄形電池の同図である。
１・・・正極 ２・・・電解質層３・・・負
極 ４・・・正極集電体５・・・負極集電体
６・・・封口樹脂７．７′・・・電気絶縁性微粒
子Fig. 1 is a cross-sectional view of essential parts of a thin battery showing one embodiment of the present invention, Fig. 2 is the same drawing showing another embodiment of the present invention, and Fig. 3 is the same diagram of a conventional thin battery. It is a diagram. 1... Positive electrode 2... Electrolyte layer 3... Negative electrode 4... Positive electrode current collector 5... Negative electrode current collector 6... Sealing resin 7.7'... Electrically insulating fine particles
Claims (3)
ねた発電要素に集電体兼電槽を配し、該周縁部を電気絶
縁性を有する微粒子を混入した接着性樹脂を用いて接着
したことを特徴とする薄形電池。(1) A current collector/container is arranged on a power generation element in which a positive electrode active material, an electrolyte layer, and a negative electrode active material are stacked in layers, and the periphery is covered with an adhesive resin mixed with fine particles having electrical insulation properties. A thin battery characterized by being bonded.
薄形電池。(2) The thin battery according to claim 1, wherein the adhesive resin is a thermosetting resin.
ス等の非金属材料からなる請求項１記載の薄形電池。(3) The thin battery according to claim 1, wherein the electrically insulating fine particles are made of a non-metallic material such as ceramics or glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2160216A JPH0451455A (en) | 1990-06-18 | 1990-06-18 | Thin form cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2160216A JPH0451455A (en) | 1990-06-18 | 1990-06-18 | Thin form cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0451455A true JPH0451455A (en) | 1992-02-19 |
Family
ID=15710245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2160216A Pending JPH0451455A (en) | 1990-06-18 | 1990-06-18 | Thin form cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180198169A1 (en) * | 2015-06-23 | 2018-07-12 | Hitachi Zosen Corporation | All-solid-state secondary battery and method of producing the same |
| GB2578486A (en) * | 2018-09-28 | 2020-05-13 | Sumitomo Chemical Co | Flexible battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60216440A (en) * | 1984-04-10 | 1985-10-29 | Matsushita Electric Ind Co Ltd | Flat type cell |
| JPS625557A (en) * | 1985-06-28 | 1987-01-12 | Toppan Printing Co Ltd | Flat type nonaqueous electrolyte battery |
-
1990
- 1990-06-18 JP JP2160216A patent/JPH0451455A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60216440A (en) * | 1984-04-10 | 1985-10-29 | Matsushita Electric Ind Co Ltd | Flat type cell |
| JPS625557A (en) * | 1985-06-28 | 1987-01-12 | Toppan Printing Co Ltd | Flat type nonaqueous electrolyte battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180198169A1 (en) * | 2015-06-23 | 2018-07-12 | Hitachi Zosen Corporation | All-solid-state secondary battery and method of producing the same |
| US10651506B2 (en) * | 2015-06-23 | 2020-05-12 | Hitachi Zosen Corporation | All-solid-state secondary battery and method of producing the same |
| GB2578486A (en) * | 2018-09-28 | 2020-05-13 | Sumitomo Chemical Co | Flexible battery |
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