JPH03127442A - Flat type organic electrolyte cell - Google Patents
Flat type organic electrolyte cellInfo
- Publication number
- JPH03127442A JPH03127442A JP26687889A JP26687889A JPH03127442A JP H03127442 A JPH03127442 A JP H03127442A JP 26687889 A JP26687889 A JP 26687889A JP 26687889 A JP26687889 A JP 26687889A JP H03127442 A JPH03127442 A JP H03127442A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- sealing plate
- case
- gasket
- 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.)
- Pending
Links
- 239000005486 organic electrolyte Substances 0.000 title claims description 10
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011149 active material Substances 0.000 claims description 2
- 229920006015 heat resistant resin Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001947 lithium 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
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、扁平上有機電解質電池の改良に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in flat top organic electrolyte batteries.
従来の技術
扁平形電池は、高エネルギー密度を有し信頼性に優れて
いるため、近年急速に需要が増加し、特に電子機器の発
展と共に、軽薄短小化が進み電池に対してもコイン形の
ような扁平形のものが要求されるに至っている。Conventional technology Flat batteries have high energy density and excellent reliability, so the demand for them has increased rapidly in recent years.In particular, with the development of electronic devices, coin-shaped batteries have become lighter, thinner, and smaller. There is a growing demand for such flat shapes.
この扁平形電池にむいて、従来よりケース、ガスケット
、封口板のカシメ部からの漏液対策とし7て、ブロンア
スファルト、ポリブテン等の材料を溶剤等によって希釈
し、ケース内面側部やガスゲット内面に塗布後、乾燥し
溶剤を除去し、密封後ケースとガスケット、ガスケット
と封「1板のすき間をうめ、内部の有機電解質が外部に
IIG液しないよう工夫がなされてきた。Conventionally, as a countermeasure against leakage from the caulked parts of the case, gasket, and sealing plate for flat batteries, materials such as blown asphalt and polybutene are diluted with solvents and After coating, drying, removing the solvent, and sealing, the gap between the case and gasket, and the gasket and sealing plate was filled in to prevent the organic electrolyte inside from leaking to the outside.
発明が解決しようとする課題
しかし、従来の方法によると前記した):t +l:
効!’e=のある材料のほとんどが有機系の溶剤に溶け
やすいという性質を有しているため、電池内部の有機電
解質によって封止剤が徐々に溶は出し、長期間保存され
たり、温度ショックによる加速テストにおいて漏液水準
が劣化する問題があった。Problems to be Solved by the Invention However, according to the conventional method, as described above): t + l:
Effective! Most of the materials with 'e' have the property of being easily soluble in organic solvents, so the sealant will gradually dissolve due to the organic electrolyte inside the battery, and if stored for a long time or due to temperature shock. There was a problem in which the leakage level deteriorated during accelerated testing.
また、ケースや封目板に塗布する際溶液状であるため工
程の中で部品の汚れの原因となったり、塗布量のバラツ
キやカシメ部分のバラツキ等により、封止剤が電池の外
部表面に飛び出し、外観不良や機器の端子との接触不良
等の問題もあった。In addition, since it is in a solution form when applied to the case or sealing plate, it may cause contamination of parts during the process, and due to variations in the amount of application or unevenness in the caulking area, the sealant may not adhere to the external surface of the battery. There were also problems such as protrusion, poor appearance, and poor contact with equipment terminals.
本発明は、上記のような従来の問題点を解決し、組立工
程の安定化と、耐漏液特性を著しく向上させようとする
ものである。The present invention aims to solve the above-mentioned conventional problems, stabilize the assembly process, and significantly improve leakage resistance.
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、耐有機溶媒系の熱
溶着性樹脂を用いて、ケース1の内面側部と封口板2の
最外周及び底部の円周上に前記樹脂を溶着させた部品で
密閉封口をするものである。Means for Solving the Problem In order to solve this problem, the present invention uses an organic solvent-resistant heat-fusible resin to seal the inner side of the case 1 and the outermost and bottom circumferences of the sealing plate 2. The resin is welded to the parts to seal the opening.
作用
耐有機溶媒系の熱溶着性樹脂をケース、封目板等に熱溶
着させることにより、樹脂と金属との密着がより強固に
なるとともに、全屈表面の微細な凹凸に樹脂が溶解して
流れこみすき間を完全にうずめることができる。またケ
ースとガスケット、ガスケットと封目板の間に熱溶着性
16+脂が介在するため、金属とは熱溶着によって、ガ
スケットとは樹脂同志であることから、カシメ封口後漏
液を完全に防止することができる。By heat-welding the action-resistant organic solvent-based heat-welding resin to the case, sealing plate, etc., the adhesion between the resin and the metal becomes stronger, and the resin dissolves into the fine irregularities of the fully curved surface. It is possible to completely fill the flow gap. In addition, since there is heat-welding 16+ grease between the case and the gasket, and between the gasket and the sealing plate, the metal is heat-welded and the gasket is a resin, so it is impossible to completely prevent liquid leakage after the seal is crimped. can.
実施例
以下、本発明の実施例を高さ5 、4 mm 、直径2
3mの扁平形有機電解質の電池を例にとり説明する。Examples Below, examples of the present invention will be described with a height of 5.4 mm and a diameter of 2 mm.
This will be explained using a 3 m flat organic electrolyte battery as an example.
第1図は、リチウム、二酸化マンガン系の扁平形有機電
解質電池の断面で、図中1は、ステンレス鋼製のケース
、2はステンレス鋼製の封目板、3は活物質である二酸
化マンガン、導竜剤、結着剤からなる正極合剤、4は負
極活物であるリチウム、5はポリプロピレン製の不織布
セパレーター、6はポリプロピレン製のガスケット、7
は導電性炭素皮膜、8は正極リング、9は本発明による
P−P系溶着性樹脂をケース内面側部、封口板最外周及
び底部円周上にあらかじめ塗布したものである。電解液
には、炭酸プロピレンと、1・2ジメトキシエタンとの
混合溶媒に過塩素酸リチウムを溶解させたちのを使用し
た。Figure 1 is a cross section of a flat organic electrolyte battery based on lithium and manganese dioxide. In the figure, 1 is a stainless steel case, 2 is a stainless steel sealing plate, 3 is an active material of manganese dioxide, A positive electrode mixture consisting of a doryo agent and a binder, 4 is lithium as a negative electrode active material, 5 is a polypropylene nonwoven fabric separator, 6 is a polypropylene gasket, 7
Reference numeral 8 indicates a conductive carbon film, 8 indicates a positive electrode ring, and 9 indicates a P-P type welding resin according to the present invention applied in advance to the inner side of the case, the outermost periphery of the sealing plate, and the bottom circumference. The electrolyte used was lithium perchlorate dissolved in a mixed solvent of propylene carbonate and 1,2 dimethoxyethane.
ケースや封目板に熱溶着性樹脂を溶着する方法として、
第2図に示すように、あらかじめ溶着する部分の面積・
形状に合せた樹脂を加工しておき、それぞれヒーターを
内蔵した金属製治具を圧接することにより溶着する。こ
の時、金属製治具に熱溶着性樹脂が溶着しないようにす
るため、溶着したいケース、封口板側には熱溶着11樹
脂を対しさせ、金属製治具側には耐熱性の樹脂をラミネ
ートしたちのを使用する。As a method of welding thermofusible resin to the case and sealing plate,
As shown in Figure 2, the area of the part to be welded in advance and
The resin is processed to match the shape, and then welded by pressing metal jigs with built-in heaters. At this time, in order to prevent the heat-welding resin from welding to the metal jig, apply heat-welding 11 resin to the case and sealing plate side to be welded, and laminate heat-resistant resin to the metal jig side. Use Shitachino.
次に、本発明と従来品を比較するため、温度ンヨックテ
ストを行った結果と外観結果を表−1に示す。テスト条
件は、−10〜60 ’Cとしホールドタイムは各々L
H,2Hを1サイクルとし、500ナイクル後の漏液結
果である。Next, in order to compare the present invention and the conventional product, the results of a temperature check test and the appearance results are shown in Table 1. The test conditions were -10 to 60'C and the hold time was L.
This is the result of leakage after 500 ncycles using H and 2H as one cycle.
表
また、60℃−90%の条件で電池を100日保存し放
電した結果を第3図に示す。この結果より、多湿条件に
長期間保存しても持続時間、放電中のI−R安定性にお
いて本発明品が優れていることか明らかである。Further, FIG. 3 shows the results of storing and discharging the battery at 60° C.-90% for 100 days. From these results, it is clear that the product of the present invention is superior in terms of duration and I-R stability during discharge even when stored in humid conditions for a long period of time.
発明の効果
以上の説明から明らかなように、熱溶着性樹脂をあらか
しめ、ケース内面側部と封口板外周部及び底部円周部に
溶着することにより、多湿保存下での特性や耐漏液11
の向上と安定化及び工程の安定化や外観不良の低減とい
う効果が得られた。Effects of the Invention As is clear from the above explanation, by welding a heat-fusible resin to the inner side of the case, the outer periphery of the sealing plate, and the bottom circumference, the characteristics under humid storage and leakage resistance are improved.
The effects of improving and stabilizing the process, stabilizing the process, and reducing appearance defects were obtained.
第1図は本発明の実施例における有機電解買電特性図で
ある。
1・・・・・・ケース、2・・・・・・封口板、3・・
・・・・正極、4・・・・・・負極、5・・・・・・セ
パレーター、6・・・・・・ガスケット、7・・・・・
・導電性炭素皮膜、8・・・・・・正極リング、9・・
・・・・封止剤、9′・・・・・・熱溶着性樹脂。FIG. 1 is an organic electrolytic power purchase characteristic diagram in an example of the present invention. 1... Case, 2... Sealing plate, 3...
...Positive electrode, 4...Negative electrode, 5...Separator, 6...Gasket, 7...
・Conductive carbon film, 8... Positive electrode ring, 9...
... Sealant, 9' ... Heat-fusible resin.
Claims (3)
ら正・負極間に介在するセパレーター5と、有機電解質
を有し、正極端子を兼ねる電池ケース1と負極端子を兼
ねる封口板2および電池ケースと封口板との間で、電池
ケースの底面を座として圧縮されたガスケット6により
密封する電池であって、あらかじめケース1の内面側部
と封口板2の最外周及び底部の円周上に熱溶着性樹脂を
溶着したことを特徴とする扁平形有機電解質電池。(1) A negative electrode 4 that uses a light metal as an active material, a positive electrode 3, a separator 5 interposed between these positive and negative electrodes, a battery case 1 that includes an organic electrolyte, and that also serves as a positive terminal, and a sealing plate 2 that also serves as a negative terminal. and a battery that is sealed between the battery case and the sealing plate with a compressed gasket 6 using the bottom surface of the battery case as a seat, the circumference of the inner side of the case 1 and the outermost and bottom circumference of the sealing plate 2 in advance. A flat organic electrolyte battery characterized by having a heat-fusible resin welded thereon.
許請求の範囲第1項記載の扁平形有機電解質電池。(2) The flat organic electrolyte battery according to claim 1, wherein the material of the heat-fusible resin is polypropylene.
たものからなる特許請求の範囲第1項記載の扁平形有機
電解質電池。(3) The flat organic electrolyte battery according to claim 1, wherein the heat-fusible resin is laminated with a heat-resistant resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26687889A JPH03127442A (en) | 1989-10-12 | 1989-10-12 | Flat type organic electrolyte cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26687889A JPH03127442A (en) | 1989-10-12 | 1989-10-12 | Flat type organic electrolyte cell |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03127442A true JPH03127442A (en) | 1991-05-30 |
Family
ID=17436911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26687889A Pending JPH03127442A (en) | 1989-10-12 | 1989-10-12 | Flat type organic electrolyte cell |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03127442A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5772259A (en) * | 1980-07-04 | 1982-05-06 | Yuasa Battery Co Ltd | Sealed alaline battery |
JPS57145266A (en) * | 1981-03-03 | 1982-09-08 | Toshiba Battery Co Ltd | Organic solvent battery |
JPS63237350A (en) * | 1987-03-26 | 1988-10-03 | Toshiba Battery Co Ltd | Organic solvent cell |
-
1989
- 1989-10-12 JP JP26687889A patent/JPH03127442A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5772259A (en) * | 1980-07-04 | 1982-05-06 | Yuasa Battery Co Ltd | Sealed alaline battery |
JPS57145266A (en) * | 1981-03-03 | 1982-09-08 | Toshiba Battery Co Ltd | Organic solvent battery |
JPS63237350A (en) * | 1987-03-26 | 1988-10-03 | Toshiba Battery Co Ltd | Organic solvent cell |
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