JPH11144701A - Connecting method of thin battery - Google Patents
Connecting method of thin batteryInfo
- Publication number
- JPH11144701A JPH11144701A JP9302604A JP30260497A JPH11144701A JP H11144701 A JPH11144701 A JP H11144701A JP 9302604 A JP9302604 A JP 9302604A JP 30260497 A JP30260497 A JP 30260497A JP H11144701 A JPH11144701 A JP H11144701A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- batteries
- unit cell
- completed
- sealed
- 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
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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、集電体の片面に固
体電解質からなる活物質層が配され、作用面が非円形の
電極と、固体電解質からなるセパレータを組合せて、そ
の電池を平面に連ねてなる薄形電池の接続方法に関する
ものである。BACKGROUND OF THE INVENTION The present invention relates to a current collector in which an active material layer made of a solid electrolyte is disposed on one side of a current collector, and an electrode having a non-circular working surface and a separator made of the solid electrolyte are combined to form a flat battery. The present invention relates to a method of connecting a thin battery connected to a battery.
【０００２】[0002]
【従来の技術】フィルム状の電池を数個連ねて集合電池
を形成する場合、電池を平面に連ねて接続する場合があ
る。2. Description of the Related Art When a battery pack is formed by connecting several film-shaped batteries, the batteries may be connected in a plane.
【０００３】[0003]
【発明が解決しようとする課題】このとき図４に示した
如く、単セルの封止部が単セルの厚さ方向の中央部にあ
るため、各単セルの封止部が一直線上（同一の高さ位
置）に存在することになり、集合電池内で容量に寄与し
ない封止部の占める割合が大きく、体積効率が悪く、エ
ネルギー効率の小さい集合電池しか供給できなかった。At this time, as shown in FIG. 4, the sealing portion of each single cell is located at the center in the thickness direction of the single cell. Height position), the ratio of the sealing portion that does not contribute to the capacity in the assembled battery is large, the volume efficiency is poor, and only the assembled battery with low energy efficiency can be supplied.
【０００４】本発明は上述の問題に対し、集合電池にお
ける単セルの封止部の占める割合を低減しようとするも
のである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is an object of the present invention to reduce the proportion of a sealed portion of a unit cell in a battery pack.
【０００５】[0005]
【課題を解決するための手段】フィルム状の電池を平面
に連ねて接続する場合、単セルの封止部同士を重ね合わ
せることができるように、接着材を含む外装体の片面が
凸形のものを使用し、単セルの周囲を熱溶着することに
より、単セル形状を凸形になるように接続することによ
り、体積効率の大きい、エネルギー密度の大きな電池を
供給することができる。SUMMARY OF THE INVENTION When connecting a film-shaped battery in a plane, one side of an outer package including an adhesive has a convex shape so that sealing portions of single cells can be overlapped. By using a single cell and heat-welding the periphery of the single cell to connect the single cell in a convex shape, a battery with high volumetric efficiency and high energy density can be supplied.
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態として、例え
ばフィルム状固体電解質電池の単セルの外装体を３層構
造をしたアルミラミネートシートによりシールする場
合、電極部が凸形になるように封止したものを作成し、
隣り合う単セルの封止部がそれぞれ上下に重なるように
平面に連ねることにより、直列および並列もしくはその
混在形の接続が可能で、単セルの封止部が占める面積が
小さい組電池を得ることができる。BEST MODE FOR CARRYING OUT THE INVENTION As an embodiment of the present invention, for example, when a single cell outer package of a film-shaped solid electrolyte battery is sealed with an aluminum laminate sheet having a three-layer structure, the electrode portion is made to have a convex shape. Create a sealed one,
By connecting the sealing portions of adjacent single cells to a plane so as to overlap each other vertically, it is possible to connect in series and parallel or a mixed type thereof, and to obtain an assembled battery having a small area occupied by the sealing portions of the single cells. Can be.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。なお、本発明の電極その他の材料および形状は
以下に示した例に限定されるものではない。An embodiment of the present invention will be described below with reference to the drawings. The electrodes and other materials and shapes of the present invention are not limited to the examples shown below.
【０００８】図１は本発明のフィルム状固体電解質電池
の組電池を示す斜視図、図２は単セルの斜視図、図３は
図２の分解図、図４は従来の単セルの平面図および底面
図であり、１は正極、２は負極、３は固体電解質層、４
は外装体であるアルミラミネートシート、５は外側に凸
になるように成型したアルミラミネートシートである。FIG. 1 is a perspective view showing an assembled battery of the film solid electrolyte battery of the present invention, FIG. 2 is a perspective view of a single cell, FIG. 3 is an exploded view of FIG. 2, and FIG. 4 is a plan view of a conventional single cell. 1 is a positive electrode, 2 is a negative electrode, 3 is a solid electrolyte layer,
Is an aluminum laminate sheet as an exterior body, and 5 is an aluminum laminate sheet formed so as to be convex outward.
【０００９】正極1 は長方形のアルミニウム箔からなる
集電体１a の片面に、コバルト酸リチウム（ＬｉＣｏＯ
2 ）等の活物質粉末と、アセチレンブラック等の導電剤
と結着剤および固体電解質である例えばポリエチレンオ
キサイド（ＰＥＯ）と電解液である例えば６フッ化リン
酸リチウム（ＬｉＰＦ6 ）のプロピレンカーボネート
（ＰＣ）溶液からなる電解液の混合物からなる合剤層
（活物質層）1bが配置されている。負極２は銅箔からな
る集電体２ａの片面に、炭素粉末とＰＥＯおよび電解液
の混合液からなる合剤層（活物質層）２ｂが配置されて
いる。固体電解質層（セパレータ）３は、ＰＥＯおよび
電解液の混合液から成っている。このような正極１と負
極２とセパレータ３を用いて単セルを作製し、予めアル
ミラミネートシートの片側が外側に凸になるように形成
したシート５と、形成していないシート４を溶着するこ
とにより、封止部が電池の厚さの中心線からはずれた本
発明の単セルが完成する。なお、１ｃ、２ｃは端子部で
ある。The positive electrode 1 is provided on one side of a current collector 1a made of a rectangular aluminum foil with lithium cobalt oxide (LiCoO 2).
2 ), a conductive agent such as acetylene black, a binder, a solid electrolyte such as polyethylene oxide (PEO), and an electrolytic solution such as lithium hexafluorophosphate (LiPF 6 ) propylene carbonate (LiPF 6 ). A mixture layer (active material layer) 1b composed of a mixture of electrolyte solutions composed of a PC) solution is disposed. In the negative electrode 2, a mixture layer (active material layer) 2b composed of a mixture of carbon powder, PEO and an electrolytic solution is disposed on one surface of a current collector 2a composed of a copper foil. The solid electrolyte layer (separator) 3 is composed of a mixture of PEO and an electrolyte. A single cell is produced using such a positive electrode 1, a negative electrode 2, and a separator 3, and a sheet 5 formed in advance so that one side of an aluminum laminated sheet is outwardly convex and a sheet 4 not formed are welded. Thereby, the single cell of the present invention in which the sealing portion is off the center line of the thickness of the battery is completed. 1c and 2c are terminal portions.
【００１０】次に、完成した単セルを交互に向きを変え
て隣り合う電池の封止部同士が、重なり合うように、か
つ平面に連なるように接続する。これにより、本発明の
薄形電池の接続が完成する。[0010] Next, the completed single cells are connected alternately so that the sealing portions of adjacent batteries are overlapped with each other and connected to a plane. Thereby, the connection of the thin battery of the present invention is completed.
【００１１】[0011]
【発明の効果】以上詳述したように、本発明は、次に記
載する効果を奏する。As described in detail above, the present invention has the following effects.
【００１２】（１）請求項１記載の電池は、隣り合う単
セルの封止部同士が重なるため、単セルを平面に連ねて
接続する場合、単セルの封止部幅が実質半分になり、エ
ネルギー密度が向上する。(1) In the battery according to the first aspect, since the sealing portions of adjacent single cells overlap each other, when connecting the single cells in a plane, the width of the sealing portion of the single cell becomes substantially half. , Energy density is improved.
【００１３】（２）請求項２記載の電池は、直列接続し
ても電池のトータル厚さが単セル厚さと同じであるた
め、パソコン等に実装する場合も、機器全体が薄くでき
る。(2) In the battery according to the second aspect, the total thickness of the battery is the same as the thickness of a single cell even when the battery is connected in series. Therefore, even when the battery is mounted on a personal computer or the like, the entire device can be made thin.
【図１】本発明に係る組電池を示す斜視図である。FIG. 1 is a perspective view showing an assembled battery according to the present invention.
【図２】本発明に係る単セルの斜視図である。FIG. 2 is a perspective view of a single cell according to the present invention.
【図３】本発明に係る単セルの分解図である。FIG. 3 is an exploded view of a single cell according to the present invention.
【図４】従来の単セルの平面図および底面図である。FIG. 4 is a plan view and a bottom view of a conventional single cell.
【符号の説明】 １ 正極 ２ 負極 ３ 固体電解質層（セパレータ） ４ アルミラミネートシート ５ 外側が凸形に成型されたアルミラミネートシー
ト ６ 樹脂接着材 1a、2a 集電体 1b、2b 合剤層（活物質層） 1c、2c 端子部[Explanation of Signs] 1 Positive electrode 2 Negative electrode 3 Solid electrolyte layer (separator) 4 Aluminum laminated sheet 5 Aluminum laminated sheet molded with convex outside 6 Resin adhesives 1a, 2a Current collector 1b, 2b Mixture layer (active Material layer) 1c, 2c terminal
Claims (5)
っていることを特徴とする薄形電池の接続方法。1. A method for connecting thin batteries, wherein sealing portions of adjacent batteries overlap each other.
特徴とする請求項１記載の薄形電池の接続方法。2. The method for connecting a thin battery according to claim 1, wherein the batteries are connected in a plane.
徴とする請求項２記載の薄形電池の接続方法。3. The method for connecting a thin battery according to claim 2, wherein the shape of the battery is convex.
て、非対称形であることを特徴とする請求項１記載の薄
形電池の接続方法。4. The method for connecting a thin battery according to claim 1, wherein the battery is asymmetric with respect to a center line in a thickness direction.
らなることを特徴とする請求項１記載の薄形電池の接続
方法。5. The method for connecting a thin battery according to claim 1, wherein the exterior of the battery is made of a laminate sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9302604A JPH11144701A (en) | 1997-11-05 | 1997-11-05 | Connecting method of thin battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9302604A JPH11144701A (en) | 1997-11-05 | 1997-11-05 | Connecting method of thin battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11144701A true JPH11144701A (en) | 1999-05-28 |
Family
ID=17910989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9302604A Pending JPH11144701A (en) | 1997-11-05 | 1997-11-05 | Connecting method of thin battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11144701A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005021280A1 (en) * | 2003-08-28 | 2005-03-10 | Toppan Forms Co., Ltd. | Speech-message delivery sheet, its manufacturing method, and power supply circuit |
| JP2005116456A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Battery pack |
| JP2005302383A (en) * | 2004-04-07 | 2005-10-27 | Toshiba Corp | Battery pack |
| JP2006236828A (en) * | 2005-02-25 | 2006-09-07 | Toyota Motor Corp | Battery module |
| WO2007063877A1 (en) * | 2005-12-01 | 2007-06-07 | Nec Corporation | Method for producing electrical device assembly |
-
1997
- 1997-11-05 JP JP9302604A patent/JPH11144701A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005021280A1 (en) * | 2003-08-28 | 2005-03-10 | Toppan Forms Co., Ltd. | Speech-message delivery sheet, its manufacturing method, and power supply circuit |
| AU2004268861B2 (en) * | 2003-08-28 | 2008-05-08 | Toppan Forms Co., Ltd. | Audio message transfer sheet and manufacturing method thereof, and power supply circuit |
| US7840017B2 (en) | 2003-08-28 | 2010-11-23 | Toppan Forms Co., Ltd. | Audio message transfer sheet and manufacturing method thereof, and power supply circuit |
| JP2005116456A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Battery pack |
| JP2005302383A (en) * | 2004-04-07 | 2005-10-27 | Toshiba Corp | Battery pack |
| JP2006236828A (en) * | 2005-02-25 | 2006-09-07 | Toyota Motor Corp | Battery module |
| WO2007063877A1 (en) * | 2005-12-01 | 2007-06-07 | Nec Corporation | Method for producing electrical device assembly |
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