JP2616167B2 - Film battery assembly - Google Patents
Film battery assemblyInfo
- Publication number
- JP2616167B2 JP2616167B2 JP2186673A JP18667390A JP2616167B2 JP 2616167 B2 JP2616167 B2 JP 2616167B2 JP 2186673 A JP2186673 A JP 2186673A JP 18667390 A JP18667390 A JP 18667390A JP 2616167 B2 JP2616167 B2 JP 2616167B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- film battery
- view
- film
- cell
- 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.)
- Expired - Fee Related
Links
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)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はフィルム電池の集合体の構造に関するもので
ある。Description: TECHNICAL FIELD The present invention relates to a structure of an assembly of a film battery.
従来技術とその問題点 近年、リチウム電池の発火事故が発生し電池の安全性
の確保が大きな問題となっている。2. Related Art and its Problems In recent years, a lithium battery ignition accident has occurred, and securing the safety of the battery has become a major problem.
厚みが薄いフィルム電池は単電池における電池体積に
対する表面積が円筒形電池に比べてはるかに大きいこと
から、放熱性がよく本質的に安全性が高い。Since a thin film battery has a much larger surface area with respect to the battery volume in a unit cell than a cylindrical battery, it has good heat dissipation and is inherently high in safety.
しかし、積層構造の集合電池としたとき、内部短絡等
により単電池が発熱すると、近接する他の電池に熱が伝
わり、放熱が不十分となり電池温度が高くなる欠点が避
けられなかった。However, in the case of an assembled battery having a laminated structure, when a unit cell generates heat due to an internal short circuit or the like, heat is transmitted to other adjacent cells, heat radiation is insufficient, and the disadvantage of increasing the battery temperature cannot be avoided.
発明の目的 本発明は上記従来の問題点に鑑みなされたものであ
り、空間利用率に優れた安全性及び信頼性の極めて高い
フィルム電池集合体を提供することを目的とするもので
ある。SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and has as its object to provide a film battery assembly having excellent space utilization and extremely high safety and reliability.
発明の構成 本発明は上記目的を達成すべく、放熱フィンを有する
フィルム電池を並列に接続してなるフィルム電池集合体
の群電池において、各単電池と群電池集合体間に過電流
により前記単電池の電流通過部の一部の抵抗を増大せし
める要素又は過電流により前記単電池の電流通過部の一
部を溶融切断する要素を設け、且つ該単電池の外装が厚
さ0.5mm以下の電気絶縁フィルムで覆われ、放熱用の幅
0.5mm以下の溝を有するフィルム電池集合体としたもの
である。Configuration of the Invention In order to achieve the above object, the present invention provides a group battery of a film battery assembly in which film batteries having radiating fins are connected in parallel. An element for increasing the resistance of a part of the current passing part of the battery or an element for melting and cutting a part of the current passing part of the unit cell due to overcurrent, and the outer casing of the unit cell has an outer thickness of 0.5 mm or less. Covered with insulating film, heat dissipation width
This is a film battery assembly having a groove of 0.5 mm or less.
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。Examples Hereinafter, the present invention will be described in detail with reference to examples.
第１図は本発明の一実施例を示したフィルム電池の平
面図、第２図は第１図のＡ−Ａ要部断面図、第３図は第
１図のＢ−Ｂ要部断面図、第４図は本発明の他の実施例
を示したフィルム電池の平面図、第５図は第４図のＣ−
Ｃ要部断面図、第６図は本発明の他の実施例を示したフ
ィルム電池の平面図、第７図は第６図のＤ−Ｄ要部断面
図である。FIG. 1 is a plan view of a film battery showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part AA of FIG. 1, and FIG. 3 is a cross-sectional view of a main part BB of FIG. FIG. 4 is a plan view of a film battery showing another embodiment of the present invention, and FIG.
FIG. 6 is a plan view of a film battery showing another embodiment of the present invention, and FIG. 7 is a cross-sectional view of a main part DD of FIG.
ここで１は正極活物質、２は電解質、３は負極活物
質、４は正極集電体、５は負極集電体、６は封口接着樹
脂、7,7′は電気絶縁フィルム、８は放熱溝、９はヒュ
ーズ、10は接続導体、11はセル間接続線である。Here, 1 is a positive electrode active material, 2 is an electrolyte, 3 is a negative electrode active material, 4 is a positive electrode current collector, 5 is a negative electrode current collector, 6 is a sealing adhesive resin, 7, 7 'is an electric insulating film, and 8 is heat radiation. The groove, 9 is a fuse, 10 is a connection conductor, and 11 is a connection line between cells.
実施例１ 第１図に示した単電池の外形寸法は縦54mm、横86mm、
厚み0.3mmである。正極活物質は二酸化マンガン、バナ
ジウム酸化物等を主成分とする、電解質はポレエチレン
オキシドに過塩素酸リチウムを加えた高分子固体電解質
である。負極活物質はリチウム又はカーボン等から成
る。これらの発電要素の上下にステンレス製集電体を配
し、各々の周縁部をポリプロピレン系熱接着性樹脂を介
して接着した。Example 1 The external dimensions of the unit cell shown in FIG.
The thickness is 0.3 mm. The positive electrode active material is mainly composed of manganese dioxide, vanadium oxide or the like, and the electrolyte is a polymer solid electrolyte obtained by adding lithium perchlorate to polyethylene oxide. The negative electrode active material is made of lithium, carbon, or the like. Current collectors made of stainless steel were arranged above and below these power generating elements, and the peripheral portions of the current collectors were adhered to each other via a polypropylene-based thermoadhesive resin.
電気絶縁フィルムはテフロン、ポリイミド等の材質か
らなる厚みが0.3mmであり、放熱のために幅0.5mmの溝を
設けている。尚、電気絶縁フィルムは厚さが厚い場合、
電池集合体としての体積エネルギー密度が低下するだけ
でなく、放熱を妨げるので、厚みは0.5mm以下が望まし
い。The electrical insulating film is made of a material such as Teflon or polyimide, has a thickness of 0.3 mm, and has a groove of 0.5 mm width for heat radiation. In addition, when the thickness of the electrical insulation film is large,
The thickness is preferably 0.5 mm or less because not only does the volume energy density of the battery assembly decrease, but it also hinders heat radiation.
ヒューズはその材質が例えば錫であり、その断面積は
0.005mm2である。The material of the fuse is tin, for example, and its cross-sectional area is
It is 0.005mm 2.
第３図に示した如く、集電体の外周部をはみ出させる
ことにより、放熱フィンとしての機能を保持せしめた。As shown in FIG. 3, the function as a radiation fin was maintained by protruding the outer peripheral portion of the current collector.
実施例２ 第４図に、本発明の他の実施例を示したフィルム電池
の平面図を示した。実施例１のフィルム電池のヒューズ
に替えて、抵抗を増大せしめる構造とした。その他は、
実施例１と同様である。第４図のＣ−Ｃ要部断面図を第
５図に示した。集電体５′の電流通過部分の断面積を0.
005mm2とした。Example 2 FIG. 4 shows a plan view of a film battery showing another example of the present invention. Instead of the fuse of the film battery of Example 1, the structure was such that the resistance was increased. Others
This is similar to the first embodiment. FIG. 5 shows a cross-sectional view of the CC main part in FIG. Set the cross-sectional area of the current passing portion of the current collector 5 'to 0.
It was 005mm 2.
実施例３ 第６図に、本発明の他の実施例を示したフィルム電池
の平面図を示した。又、第７図に第６図のＤ−Ｄ要部断
面図を示した。実施例１のフィルム電池のヒューズに替
えてセル間接続線を用いた。その他は実施例１と同様で
ある。ここではセル間接続線が過電流により切断する構
造である。この材質はSUS304であり、断面積を0.005mm2
（電池面積100cm2）とした。Example 3 FIG. 6 is a plan view of a film battery showing another example of the present invention. FIG. 7 is a sectional view of a principal part taken along line DD of FIG. An intercell connecting wire was used in place of the fuse of the film battery of Example 1. Others are the same as the first embodiment. Here, the structure is such that the inter-cell connection line is disconnected by overcurrent. This material is SUS304 and the cross-sectional area is 0.005mm 2
(Battery area: 100 cm 2 ).
上記各々のフィルム電池は、内部短絡等の異常を生じ
て過電流が流れた場合、溶融切断あるいは抵抗増大せし
めて、正常な電池から強制通電がなされない。When an overcurrent flows due to an abnormality such as an internal short circuit or the like, each of the above-mentioned film batteries is melt-cut or has an increased resistance, so that a normal battery cannot be forcibly energized.
発明の効果 上述した如く、本発明は空間利用率に優れた安全性及
び信頼性の極めて高いフィルム電池集合体を提供するこ
とが出来るので、その工業的価値は極めて大である。Effect of the Invention As described above, the present invention can provide a highly reliable and highly reliable film battery assembly excellent in space utilization factor, and therefore has an extremely large industrial value.
第１図は本発明の一実施例を示したフィルム電池の平面
図、第２図は第１図のＡ−Ａ要部断面図、第３図は第１
図のＢ−Ｂ要部断面図、第４図は本発明の他の実施例を
示したフィルム電池の平面図、第５図は第４図のＣ−Ｃ
要部断面図、第６図は本発明の他の実施例を示したフィ
ルム電池の平面図、第７図は第６図のＤ−Ｄ要部断面図
である。 １…正極活物質、２…電解質 ３…負極活物質、４…正極集電体 ５…負極集電体、６…封口接着樹脂 7,7′…電気絶縁フィルム、８…放熱溝 ９…ヒューズ、10…接続導体 11…セル間接続線FIG. 1 is a plan view of a film battery showing one embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part of AA in FIG. 1, and FIG.
FIG. 4 is a cross-sectional view of a main part taken along line BB of FIG. 4, FIG. 4 is a plan view of a film battery showing another embodiment of the present invention, and FIG.
FIG. 6 is a plan view of a film battery showing another embodiment of the present invention, and FIG. 7 is a cross-sectional view of a main part DD in FIG. DESCRIPTION OF SYMBOLS 1 ... Positive electrode active material, 2 ... Electrolyte 3 ... Negative electrode active material, 4 ... Positive electrode collector, 5 ... Negative electrode collector, 6 ... Sealing adhesive resin 7, 7 '... Electrical insulating film, 8 ... Heat dissipation groove 9 ... Fuse, 10… Connection conductor 11… Connection line between cells
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−108677（ＪＰ，Ａ) 実開 昭59−161266（ＪＰ，Ｕ) 実開 昭56−32378（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-63-108677 (JP, A) JP-A-59-161266 (JP, U) JP-A-56-32378 (JP, U)
Claims (1)
接続してなるフィルム電池集合体の群電池において、各
単電池と群電池集合体間に過電流により前記単電池の電
流通過部の一部の抵抗を増大せしめる要素又は過電流に
より前記単電池の電流通過部の一部を溶融切断する要素
を設け、且つ該単電池の外装が厚さ0.5mm以下の電気絶
縁フィルムで覆われ、放熱用の幅0.5mm以下の溝を有す
ることを特徴とするフィルム電池集合体。1. A group of battery cells comprising a film battery having heat-dissipating fins connected in parallel, wherein a part of a current passing portion of the single cell is caused by an overcurrent between each cell and the group of battery cells. An element that increases the resistance of the cell or an element that melts and cuts a part of the current passing portion of the cell by overcurrent, and the exterior of the cell is covered with an electrically insulating film having a thickness of 0.5 mm or less, Characterized by having a groove having a width of 0.5 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2186673A JP2616167B2 (en) | 1990-07-12 | 1990-07-12 | Film battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2186673A JP2616167B2 (en) | 1990-07-12 | 1990-07-12 | Film battery assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473870A JPH0473870A (en) | 1992-03-09 |
| JP2616167B2 true JP2616167B2 (en) | 1997-06-04 |
Family
ID=16192658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2186673A Expired - Fee Related JP2616167B2 (en) | 1990-07-12 | 1990-07-12 | Film battery assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2616167B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190143013A (en) * | 2018-06-19 | 2019-12-30 | 삼성에스디아이 주식회사 | Rechargeable battery |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4053802B2 (en) * | 2002-03-28 | 2008-02-27 | Ｔｄｋ株式会社 | Electrochemical devices |
| JP4499977B2 (en) * | 2002-05-07 | 2010-07-14 | 富士重工業株式会社 | Plate battery electrode insulation structure |
| US8623537B2 (en) | 2009-08-18 | 2014-01-07 | Samsung Sdi Co., Ltd. | Rechargeable battery and battery module |
| JP2013537690A (en) * | 2010-08-04 | 2013-10-03 | フロント エッジ テクノロジー，インコーポレイテッド | Rechargeable battery with current limiter |
| US9466823B2 (en) * | 2013-02-28 | 2016-10-11 | Samsung Sdi Co., Ltd. | Rechargeable battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632378U (en) * | 1979-08-20 | 1981-03-30 | ||
| JPS63108677A (en) * | 1986-10-24 | 1988-05-13 | Toshiba Battery Co Ltd | Packed battery system |
-
1990
- 1990-07-12 JP JP2186673A patent/JP2616167B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190143013A (en) * | 2018-06-19 | 2019-12-30 | 삼성에스디아이 주식회사 | Rechargeable battery |
| KR102629052B1 (en) * | 2018-06-19 | 2024-01-23 | 삼성에스디아이 주식회사 | Rechargeable battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0473870A (en) | 1992-03-09 |
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Legal Events
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|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
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| R350 | Written notification of registration of transfer |
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| LAPS | Cancellation because of no payment of annual fees |