JPH0279366A - Organic electrolyte battery - Google Patents
Organic electrolyte batteryInfo
- Publication number
- JPH0279366A JPH0279366A JP63230425A JP23042588A JPH0279366A JP H0279366 A JPH0279366 A JP H0279366A JP 63230425 A JP63230425 A JP 63230425A JP 23042588 A JP23042588 A JP 23042588A JP H0279366 A JPH0279366 A JP H0279366A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- inner case
- case
- leakage resistance
- organic electrolyte
- 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.)
- Granted
Links
- 239000005486 organic electrolyte Substances 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229910002102 lithium manganese oxide 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
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は有機電解液電池に関するものである１、従来の
技術
従来、この種の有機電解液電池は、第３図に示すような
構成であった。第３図において、１は負極端子を兼ねる
封口板、２は正極端子をかねる電２ へ−７
池ケース、３はポリプロピレンからなるガスケット、４
は二酸化マンガン等を活物質とする正極、５は負極活物
質であるリチウム、６はポリプロピレン等からなるセパ
レータ、７は正極リングである。[Detailed Description of the Invention] Industrial Field of Application The present invention relates to an organic electrolyte battery. 1. Prior Art Conventionally, this type of organic electrolyte battery had a configuration as shown in Fig. 3. . In Fig. 3, 1 is a sealing plate that also serves as a negative terminal, 2 is a battery case that serves as a positive terminal, 3 is a gasket made of polypropylene, and 4 is a gasket made of polypropylene.
5 is a positive electrode made of manganese dioxide or the like as an active material, 5 is lithium as a negative electrode active material, 6 is a separator made of polypropylene or the like, and 7 is a positive electrode ring.
発明が解決しようとする課題
このような従来構成を応用して、厚さの厚い電池の構成
方法は以下の３種類があった。Problems to be Solved by the Invention There are three types of methods for constructing a thick battery by applying such a conventional configuration.
（１）第４図に示すように封口板１の折シ返し部ａの寸
法を長くする方法。(1) A method of lengthening the folded portion a of the sealing plate 1 as shown in FIG.
Ｇ２） 第５図に示すように封口板１のＲ部すの形状
を変化させる方法。G2) A method of changing the shape of the R portion of the sealing plate 1 as shown in FIG.
（３）第６図に示すようにガスケット３の底部厚さＣを
厚くする方法。(3) A method of increasing the bottom thickness C of the gasket 3 as shown in FIG.
しかし、これら３種類の方法を用いることにより耐漏液
性能が悪化することが問題となっている。However, there is a problem in that the use of these three methods deteriorates the leakage resistance.
又、電池内容積がガスケットの内径φ によって決って
しまうため、電池容量をさらに」二げることができない
。Furthermore, since the internal volume of the battery is determined by the inner diameter φ of the gasket, the battery capacity cannot be further increased.
本発明は、上記のような従来の問題点を解決し、３ ・
＼−７
耐漏液性能を向上させるとともに、さらに電池の容量ア
ップをはかることを目的としたものである。The present invention solves the conventional problems as described above, and provides three points.
＼-7 The purpose is to improve the leakage resistance and further increase the capacity of the battery.
課題を解決するための手段
この問題を解決するために、本発明は、第２図に示すよ
うな、側面部に少なくとも１ケ所以上の穴をもうけた、
断面逆ハント状の電池内ケース８を電池ケース内に設置
して溶接したものである。Means for Solving the Problems In order to solve this problem, the present invention provides at least one hole in the side surface, as shown in FIG.
A battery inner case 8 having a reverse hunt-like cross section is installed inside the battery case and welded.
作 用
この構成により、耐漏液性能の大きな因子となるガスケ
ットの圧縮率及び封口板の変形量を薄形構造とほぼ同程
度におさえることが可能となシ、耐漏液性能が安定する
。又、前記電池内ケース側面部に穴をもうけることで、
ケースと内ケース側面部との間の空間部を液溜まりとす
ることができ、従来構造では、デッドヌベースとなって
いた体積を活用できるため、容量アップが可能となる。Function: With this configuration, it is possible to suppress the compressibility of the gasket and the amount of deformation of the sealing plate, which are major factors in the leakage resistance performance, to approximately the same level as the thin structure, and the leakage resistance performance is stabilized. Also, by making a hole in the side surface of the battery inner case,
The space between the case and the side surface of the inner case can be used as a liquid reservoir, and the volume that would otherwise be a dead base in the conventional structure can be utilized, making it possible to increase the capacity.
実施例
以下本発明の実施例を高さ５．０Ｎ１Ｎ、直径２０．０
Ｕの有機電解液電池を例にと９説明する。Examples Below, examples of the present invention will be described with a height of 5.0N1N and a diameter of 20.0N.
This will be explained using the U organic electrolyte battery as an example.
第１図は、本発明によるリチウムに酸化マンガン系の有
機電解液電池の断面図である。第１図において、１はス
テンレス鋼製の負極端子を兼ねる封口板、２はステンレ
ス鋼製の正極端子を兼ねる電池ケース、３はポリプロピ
レンからなるガスケット、４は正極活物質である二酸化
マンガン等からなる正極、５は負極活物質であるリチウ
ムであシ、前記封口板１に圧着している。６はポリプロ
ピレン等よりなるセパレータ、８はステンレス鋼製の本
発明の電池内ケースである。本実施例では、前記電池内
ケース側面部に、径方向に４ケ所の穴９を設けている。FIG. 1 is a cross-sectional view of a lithium-manganese oxide-based organic electrolyte battery according to the present invention. In Figure 1, 1 is a sealing plate made of stainless steel that also serves as a negative electrode terminal, 2 is a battery case made of stainless steel that also serves as a positive terminal, 3 is a gasket made of polypropylene, and 4 is made of manganese dioxide, etc., which is a positive electrode active material. The positive electrode 5 is made of lithium, which is a negative electrode active material, and is pressure-bonded to the sealing plate 1. 6 is a separator made of polypropylene or the like, and 8 is a battery inner case of the present invention made of stainless steel. In this embodiment, four holes 9 are provided in the radial direction on the side surface of the battery inner case.
電解液には、プロピレンカーボネイトとジメトキシエタ
ンとの等容積混合溶媒に過塩素酸リチウムを溶解させた
ものを使用した。The electrolytic solution used was one in which lithium perchlorate was dissolved in an equal volume mixed solvent of propylene carbonate and dimethoxyethane.
第２図は、本発明の電池内ケースの斜視図であシ、フラ
ンジ部１ｏと、中央平坦部１１とを環状の側面部１２で
つないで逆ハント状としている。FIG. 2 is a perspective view of the battery inner case of the present invention, in which the flange portion 1o and the central flat portion 11 are connected by an annular side portion 12 to form a reverse hunt shape.
上記のように構成された本発明の電池Ａと、従来例の第
４図、第５図、第６図に示す構造の電池Ｂ、Ｃ，Ｄの耐
漏液性能を第１表に示す。なおヒ６へ−／
一トサイクルは６０℃に１時間、６０℃から一１０℃ま
での温度降下を１時間、−１０℃に１時間、−１０℃か
ら６０℃までの温度上昇を１時間としたサイクルである
。Table 1 shows the leakage resistance of battery A of the present invention constructed as described above and conventional batteries B, C, and D having structures shown in FIGS. 4, 5, and 6. To 6-/ One cycle is 60℃ for 1 hour, temperature drop from 60℃ to -10℃ for 1 hour, -10℃ for 1 hour, temperature rise from -10℃ to 60℃ for 1 hour. This is the cycle.
第１ 表 漏液発生数
従来構造は、耐漏液性に劣ることがわかる。第４図、第
５図に示す構造では、封口板１のトップｄ、ｅと折シ返
し部（ｑの間の距離が大きい為、電池ケース２を径方向
にかしめることにより封口するこの種の電池において、
封口板トップｄ、ｅを支点として、内側にモーメントが
封目板にかかシ、そのかしめ力に封目板が耐えられず変
形量が大きくなシ耐漏液性が悪化する。また、第６図に
６ へ−ン
示す構造では、封口によるガスケット底部の圧縮率が低
下するために、耐漏液性が悪化する。本発明の電池内ケ
ースは、上部フランジ部１０がガスケット底部に接して
おシ、従来構造で耐漏液性悪化の原因となった封口板の
変形、ガスケット底部の圧縮率の低下はなく、良好な耐
漏液性を示す。Table 1: Number of occurrences of liquid leakage It can be seen that the conventional structure is inferior in leakage resistance. In the structure shown in FIGS. 4 and 5, since the distance between the tops d and e of the sealing plate 1 and the folded part (q) is large, this type of sealing is performed by caulking the battery case 2 in the radial direction. In the battery of
With the sealing plate tops d and e as fulcrums, a moment is applied to the sealing plate inwardly, and the sealing plate cannot withstand the caulking force, resulting in a large amount of deformation and poor leakage resistance. Furthermore, in the structure shown in FIG. 6, the compressibility of the bottom of the gasket due to sealing is reduced, resulting in poor leakage resistance. In the battery inner case of the present invention, the upper flange portion 10 is in contact with the bottom of the gasket, and there is no deformation of the sealing plate or a decrease in the compressibility of the bottom of the gasket, which caused deterioration in leakage resistance in the conventional structure, and a good performance is achieved. Shows leakage resistance.
又、従来この種の電池に用いられてきた正極リング７は
、放電による正極の体積膨張を電池の軸方向に働かせ、
電池内部接触を良好に保つ作用をもっているが、本発明
の電池内ケース内面部１３は、この正極リングや、作用
をはたすことができる。そのため、従来用いてきた正極
リング７をはふくことができる。In addition, the positive electrode ring 7 conventionally used in this type of battery causes the volumetric expansion of the positive electrode due to discharge to work in the axial direction of the battery.
Although it has the function of maintaining good internal contact within the battery, the battery inner case inner surface portion 13 of the present invention can perform this function as well as the positive electrode ring. Therefore, the conventionally used positive electrode ring 7 can be removed.
しかし、電池組立後の内部抵抗は第２表のに））に示す
ように、例えば同表の０）に示すφ２０．ｈ３．２＋ｗ
＊の電池に比較して大きな値となる。これは解析の結果
、電池内ケースと電池ケースとの間に電解液が存在する
ためであることが判明した。その為、本発明による構造
、つまυ、電池内ケースと電池ケースを溶接することに
より第２表の（３）に示すよう了・・−ノ
に非常に小さな内部抵抗値となった。However, as shown in Table 2), the internal resistance after battery assembly is, for example, φ20. h3.2+w
This is a large value compared to batteries marked *. As a result of analysis, it was found that this was due to the presence of electrolyte between the battery inner case and the battery case. Therefore, by welding the structure of the present invention, the tab υ, the battery inner case and the battery case, a very small internal resistance value was obtained as shown in (3) of Table 2.
第２表
また、第７図に、本発明の電池Ａと従来例の代表として
第４図の構造をもつ電池Ｂの放電曲線を示す。図よシ明
らかなように、ＡはＢに比べ約１０％の容量アップをは
かることができた。とれは、第２図に示したように、電
池内ケース側面部に穴をもうけることによって電池ケー
スと電池内ケースの間の空間部分１４を液溜まシに利用
できたためである。Table 2 Also, FIG. 7 shows the discharge curves of battery A of the present invention and battery B having the structure shown in FIG. 4 as a representative conventional example. As is clear from the figure, A was able to increase the capacity by about 10% compared to B. This is because, as shown in FIG. 2, by making a hole in the side surface of the battery inner case, the space 14 between the battery case and the battery inner case can be used as a liquid reservoir.
なお、穴の形９個数１位置については、種々考えられる
。Note that various shapes and positions of nine holes can be considered.
即ち、
（１）穴の数については、少なくとも１ケ所以上あれば
良好である。That is, (1) Regarding the number of holes, it is good if there is at least one hole.
い）穴の形については、加工上の問題で本実施例では丸
みを有した三角形になっているが、形はどのようなもの
でもかまわない。b) The shape of the hole is a rounded triangle in this embodiment due to processing problems, but it may be of any shape.
（３）穴の位置については、空間部分１４には、電解液
が入シ、これが穴内外へ移動することが必要であるので
、できるかぎシ側面部の下方向にあることがのぞましい
。しかし、これは製造方法との関係で一概に判断できな
い。(3) Regarding the position of the hole, since it is necessary for the electrolyte to enter the space 14 and move in and out of the hole, it is preferable that the hole be located below the side surface of the hook. However, this cannot be definitively determined due to the relationship with the manufacturing method.
又、本発明の電池内ケースの側面部の長さをかえること
によって、任意の厚みの電池を製造することができると
いう効果を持っている。Furthermore, by changing the length of the side surface of the battery inner case of the present invention, it is possible to manufacture a battery with any desired thickness.
発明の効果
以上のように、本発明によれば、電池の厚みに関係なく
、良好な耐漏液性を確保でき、また従来よシ使用されて
きた正極リングをはぶくことがで９ ・＼−／
きる。さらに、電池内ケースの高さを変更するだけで、
同径電池の場合、ガスケット、封口板を共用し、厚さの
異なる電池を生産できるという効果をもつ。Effects of the Invention As described above, according to the present invention, good leakage resistance can be ensured regardless of the thickness of the battery, and the positive electrode ring that has been conventionally used can be removed. Wear. Furthermore, by simply changing the height of the battery case,
In the case of batteries of the same diameter, gaskets and sealing plates can be shared, making it possible to produce batteries with different thicknesses.
又、従来よシも、デッドスペースを少なくすることがで
き、電池の容量アップをはかることができる。Further, even in the conventional case, the dead space can be reduced, and the capacity of the battery can be increased.
第１図は本発明の実施例による有轡電解液電池の縦断面
図、第２図は本発明の電池内ケースの斜視図、第３図は
従来構造の有機電解液の縦断面図、第４図〜第６図は電
池厚さが厚い従来例の縦断面図、第７図は電池の放電曲
線を示す図である。
１・・・・・・封口板、２・・・・・・電池ケース、３
・・・・・・ガスケット、４・・・・・・正極、５・・
・・・・負極、６・・・・・・セパレータ、７・・・・
・・正極リング、８・・・・・・電池内ケース、９・・
・・・・穴、１ｏ・・・・・・フランジ部、１１・・・
・・・中央平坦部、１２・・・・・・側面部。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名派
６
ばっ
鞍FIG. 1 is a vertical cross-sectional view of a charged electrolyte battery according to an embodiment of the present invention, FIG. 2 is a perspective view of the battery inner case of the present invention, and FIG. 4 to 6 are vertical cross-sectional views of a conventional example with a thick battery, and FIG. 7 is a diagram showing a discharge curve of the battery. 1...Sealing plate, 2...Battery case, 3
...Gasket, 4...Positive electrode, 5...
... Negative electrode, 6 ... Separator, 7 ...
...Positive electrode ring, 8...Battery inner case, 9...
...hole, 1o...flange part, 11...
...Central flat part, 12... Side part. Name of agent: Patent attorney Shigetaka Awano and one other person
6 Badakura
Claims (1)
る発電要素を、封口板と電池ケース及びこの両者間に介
在したガスケットにより密封した有機電解液電池であっ
て、前記ガスケットの底部に当接してこれを支持するフ
ランジ部及び前記電池ケース内底面に溶接された中央平
坦部を有し、さらにフランジ部と中央平坦部をつなぐ側
面部に少なくとも１ケ所以上の穴をもうけた、断面が逆
ハント状の電池内ケースを備えた有機電解液電池。An organic electrolyte battery in which a power generation element consisting of a positive electrode, a negative electrode, and a separator impregnated with an organic electrolyte is sealed with a sealing plate, a battery case, and a gasket interposed between the two, and the battery is pressed against the bottom of the gasket. and a central flat part welded to the inner bottom surface of the battery case, and further has at least one hole in the side surface connecting the flange part and the central flat part, and has an inverted hunt-shaped cross section. Organic electrolyte battery with internal battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63230425A JP2805766B2 (en) | 1988-09-14 | 1988-09-14 | Organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63230425A JP2805766B2 (en) | 1988-09-14 | 1988-09-14 | Organic electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0279366A true JPH0279366A (en) | 1990-03-19 |
| JP2805766B2 JP2805766B2 (en) | 1998-09-30 |
Family
ID=16907694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63230425A Expired - Fee Related JP2805766B2 (en) | 1988-09-14 | 1988-09-14 | Organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2805766B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007149484A (en) * | 2005-11-28 | 2007-06-14 | Matsushita Electric Ind Co Ltd | Flat battery |
| JP2010212207A (en) * | 2009-03-12 | 2010-09-24 | Hitachi Maxell Ltd | Flat battery |
-
1988
- 1988-09-14 JP JP63230425A patent/JP2805766B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007149484A (en) * | 2005-11-28 | 2007-06-14 | Matsushita Electric Ind Co Ltd | Flat battery |
| JP2010212207A (en) * | 2009-03-12 | 2010-09-24 | Hitachi Maxell Ltd | Flat battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2805766B2 (en) | 1998-09-30 |
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