JPS6196654A - Sealed battery - Google Patents
Sealed batteryInfo
- Publication number
- JPS6196654A JPS6196654A JP59219051A JP21905184A JPS6196654A JP S6196654 A JPS6196654 A JP S6196654A JP 59219051 A JP59219051 A JP 59219051A JP 21905184 A JP21905184 A JP 21905184A JP S6196654 A JPS6196654 A JP S6196654A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- sealing gasket
- lithium
- sealed battery
- spacer
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- -1 trifluoroethylene, tetrafluoroethylene Chemical group 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000006183 anode active material Substances 0.000 claims 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims 2
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 claims 1
- 239000004677 Nylon Substances 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 claims 1
- 229920001778 nylon Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 claims 1
- 239000011244 liquid electrolyte Substances 0.000 abstract 2
- 230000002950 deficient Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010030 laminating Methods 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
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000002791 soaking 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
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Cell Separators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は陽極、陰極及びセパレータを積層してなる電極
群を電池缶に収納する際に、電池缶と電池蓋間に介在す
るシール用ガスケットにスペーサを一体化したものを使
って、電池の性能を安定させ、かつ信頼性を向上させた
密閉型電池に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides spacers for the sealing gasket interposed between the battery can and the battery lid when an electrode group consisting of a stacked anode, cathode and separator is housed in a battery can. This invention relates to a sealed battery that uses an integrated battery to stabilize battery performance and improve reliability.
従来の技術
一般に、陽極と陰極の間にセパレータを介在させ、これ
を１個または複数個重ねて電池缶に収納した電池は扁平
形電池と呼ばれ、これの小さい電池はコイン形電池と称
されている。例えば、負極にリチウム、正極に二酸化マ
ンガンを用いる電池は金属性の電池缶に二酸化マンガン
電極を、一方、リチウム電極は電池蓋にそれぞれ・接触
させ、電解液であるプロピレンカーボネートと過塩素酸
リチウムの混合溶液を含むセパレータを両極間に介在さ
せた後、電池缶と電池蓋をポリプレピレン材質のシール
用ガスケットでカシメて電池を製作していた。陽極活物
質に塩化チオニールとリチウム四塩化アルミニウムを用
いた場合でも同じ方法で製作することができる。この場
合、シール用ガスケット材質としては３弗化または４弗
化エチレンが有効である。BACKGROUND ART In general, a battery in which a separator is interposed between an anode and a cathode and one or more separators are stacked and stored in a battery can is called a flat battery, and a smaller battery is called a coin battery. ing. For example, in a battery that uses lithium for the negative electrode and manganese dioxide for the positive electrode, the manganese dioxide electrode is placed in a metal battery can, while the lithium electrode is placed in contact with the battery lid, and the electrolytes propylene carbonate and lithium perchlorate are connected to each other. After interposing a separator containing a mixed solution between the two electrodes, the battery can and lid were caulked with a sealing gasket made of polypropylene to produce a battery. Even when thionyl chloride and lithium aluminum tetrachloride are used as the positive electrode active materials, the same method can be used. In this case, trifluoroethylene or tetrafluoroethylene is effective as the sealing gasket material.
発明が解決しようとする問題点
しかし、この種の電池を製作する上で問題な点は金属性
の電池缶と電池蓋をシール用ガスケットでカシメて一体
化する時、電池としての厚、 みが一定しな
いことである。すなわち、セパレータに電解液を適量含
ませた後カシメると、電池としての厚みが一定しないた
め電解液がシール用ガスケットと電池缶または電池蓋の
間から漏れ、セパレータに含まれる電解液の量にバラツ
キが生じる。このことは製作した電池の性能にバラツキ
を引き起こし、ひいては信頼性を低下させることになる
。また、電解液の浴出を起こした電池は、良好な電池に
比べて引き続き液漏れを起こしやすい。特に、コイン型
、ボタン型と呼ばれている小形の電池はセパレ゛−夕に
含まれる電解液の量が非常に少ないので、微量の液漏れ
でも電池性能に及ぼす影響は大である。Problems to be Solved by the Invention However, the problem in manufacturing this type of battery is that when the metal battery can and battery cover are swaged together with a sealing gasket, the thickness and finish of the battery must be It is not constant. In other words, when the separator is crimped after soaking an appropriate amount of electrolyte, the electrolyte leaks from between the sealing gasket and the battery can or battery lid because the thickness of the battery is not constant, causing the amount of electrolyte contained in the separator to decrease. Variations occur. This causes variations in the performance of the manufactured batteries, which in turn reduces reliability. In addition, a battery that has suffered electrolyte leakage is more likely to continue to leak than a battery that is in good condition. In particular, since the amount of electrolyte contained in the separator of small batteries called coin-type or button-type batteries is very small, even a small amount of leakage has a large effect on battery performance.
問題点を解決するための手段
そこで、本発明はこれらの問題点を解決するために陽極
、陰極及びセパレータを積層してなる電極群を収納せる
金属性の電池缶、電池蓋及びシール用ガスケットから構
成される密閉型電池において、シール用ガスケットにス
ペーサを一体化させたものである。Means for Solving the Problems Therefore, in order to solve these problems, the present invention provides a metal battery can, a battery lid, and a sealing gasket for housing an electrode group formed by laminating an anode, a cathode, and a separator. In this sealed battery, a spacer is integrated into a sealing gasket.
作用
その結果、電池缶と電池蓋をシール用ガスケットでカシ
メて一体化する時に、電池としての厚みが常に一定した
状態を維持し、従って漏液現象もなく電解液の量のバラ
ツキがなくなって電池性能が安定することになる。As a result, when the battery can and battery cover are crimped together using a sealing gasket, the thickness of the battery always remains constant, and therefore there is no leakage phenomenon, and there is no variation in the amount of electrolyte. Performance will be stable.
実施例
以下、本発明の一実施例について図面を用いて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.
第２図は陰極にリチウム、陽極にポリテトラフルオロエ
チレンで結着されたカーボン極を用い、ガラス繊維のセ
パレータに塩化チオニールとリチウム四塩化アルミニウ
ムを含ませて構成した従来のリチウム電池である。１は
金属性の電池缶で、これには金網２が溶接されており、
その上からリチウム電極３が金網２の網目の中にくい込
むように圧着されている。一方４は金属性の電池蓋で、
テフロンで結着されたカーボン極４を金網６に保持させ
、該金網６を電池蓋４に溶接している。７はガラス繊維
セパレータで、これに塩化チオニールとリチウム四塩化
アルミニウムを含ませた後、シール用ガスケット８を電
池缶１の開口端部でカシメて密閉化を計っている。しか
し、電解液の添加量制御のバラツキ、カシメ時のシール
用談スケット８にかかる圧力のバラツキによる電池の厚
さ方向の変動による電解液の電池外への浴出という問題
が生じ、生産時の不良率が２．８９６、長期間保存では
さらに１．３９６増えることがしばしばであった。FIG. 2 shows a conventional lithium battery constructed by using lithium as a cathode, a carbon electrode bonded with polytetrafluoroethylene as an anode, and containing thionyl chloride and lithium aluminum tetrachloride in a glass fiber separator. 1 is a metal battery can, to which a wire mesh 2 is welded,
A lithium electrode 3 is pressed onto the wire mesh 2 so as to be inserted into the mesh of the wire mesh 2. On the other hand, 4 is a metal battery cover,
A carbon electrode 4 bound with Teflon is held on a wire mesh 6, and the wire mesh 6 is welded to the battery lid 4. A glass fiber separator 7 is impregnated with thionyl chloride and lithium aluminum tetrachloride, and then a sealing gasket 8 is caulked at the open end of the battery can 1 to seal it. However, due to variations in the control of the amount of electrolyte added and variations in the pressure applied to the sealing socket 8 during crimping, a problem occurred in which the electrolyte leaked out of the battery due to variations in the thickness direction of the battery. The defect rate was 2.896, and often increased by 1.396 during long-term storage.
第１図は本発明になるリチウム電池で、シール用ガスケ
ット９を除いて、電池の構成は第１図と同じである。シ
ール用ガスケット９はガスケット部１０とスペーサ部１
１をもっており、ガスケット部１０は電解液の浴出防止
、スペーサ部１１は電池の厚さを一定にする役割をもっ
ている。FIG. 1 shows a lithium battery according to the present invention, and the structure of the battery is the same as that shown in FIG. 1 except for a sealing gasket 9. The sealing gasket 9 has a gasket part 10 and a spacer part 1.
1, the gasket part 10 has the role of preventing the electrolyte from leaking out, and the spacer part 11 has the role of keeping the thickness of the battery constant.
このようなシール用ガスケット９をもつ電池では、電解
液の浴出による不良率が生産時では従来電池の２．８９
６から０．７ ％に、長期間保存では従来電池の１．３
９６から０．２％に減少させることができ、かつ、他の
電池に適用した時の有効性をも確認した。In a battery having such a sealing gasket 9, the defect rate due to electrolyte leakage is 2.89% compared to conventional batteries during production.
6 to 0.7%, compared to 1.3% of conventional batteries during long-term storage.
It was possible to reduce the amount from 96% to 0.2%, and the effectiveness was also confirmed when applied to other batteries.
第３図は負極にリチウム、陽極活物質に塩化チオニール
を用いた従来電池と本発明になる電池からそれぞれ１０
００個ずつ抽出し、１ｍＡ／ｃｍ”の電流密度で放電し
た時の放電特性のバラツキを示した図であり、従来電池
の変動幅１５９６に比べて本発明になる電池の変動幅は
５９６以内と小さい。Figure 3 shows 100% of each of a conventional battery using lithium for the negative electrode and thionyl chloride for the positive electrode active material and a battery according to the present invention.
This is a diagram showing the variation in discharge characteristics when 00 cells are extracted at a time and discharged at a current density of 1 mA/cm'', and the fluctuation range of the battery according to the present invention is within 596 compared to the fluctuation range of 1596 for the conventional battery. small.
発明の効果
以上、説明したように、本発明は電池の信頼性向上に、
また生産時及び保存時の不良率の低減に有効′であるこ
とから、工業的価値は大きくかつ技術的にも新規性を有
するものである。Effects of the Invention As explained above, the present invention improves battery reliability,
Furthermore, since it is effective in reducing the defect rate during production and storage, it has great industrial value and is technologically novel.
第１図は本発明になるリチウム電池の部分欠截図、第２
図は従来のリチウム電池の部分欠截図、第３は従来電池
の放電特性のバラツキ範囲と本発明になる電池の放電特
性のバラツキ範囲を示した図である。
１は電池缶、３はリチウム電極、４は電池蓋、（５はカ
ーボン極、７はセパレータ、
９はシール用ガスケット、１０はガスケット、１１はス
ペーサ部
第１図
第２図FIG. 1 is a partially cutaway diagram of the lithium battery according to the present invention, and FIG.
The figure is a partially cutaway diagram of a conventional lithium battery, and the third figure is a diagram showing the range of variation in the discharge characteristics of the conventional battery and the range of variation in the discharge characteristics of the battery according to the present invention. 1 is a battery can, 3 is a lithium electrode, 4 is a battery lid, (5 is a carbon electrode, 7 is a separator, 9 is a sealing gasket, 10 is a gasket, 11 is a spacer part (Fig. 1), Fig. 2)
Claims (4)
を収納せる金属性の電池缶、電池蓋及びシール用ガスケ
ットから構成される密閉型電池において、シール用ガス
ケットにスペーサを一体化させたことを特徴とする密閉
型電池。(1) In a sealed battery consisting of a metal battery can housing an electrode group consisting of a laminated anode, cathode, and separator, a battery lid, and a sealing gasket, a spacer is integrated into the sealing gasket. A sealed battery featuring:
塩化スルフリルなどオキシハライド物質を用いる場合で
は、シール用ガスケット兼スペーサの材質が３弗化エチ
レンまたは４弗化エチレンである特許請求の範囲第１項
記載の密閉型電池。(2) In the case where lithium is used for the cathode and an oxyhalide substance such as lithium chloride or sulfuryl chloride is used for the anode active material, the material of the sealing gasket and spacer is ethylene trifluoride or ethylene tetrafluoride. Sealed battery according to item 1.
またはフッ化黒鉛などを用いる場合では、シール用ガス
ケット兼スペーサの材質が３弗化エチレン、４弗化エチ
レンまたはポリプロピレンである特許請求の範囲第１項
記載の密閉型電池。(3) In the case where lithium is used for the cathode and manganese dioxide or graphite fluoride is used for the anode active material, the material of the sealing gasket and spacer is trifluoroethylene, tetrafluoroethylene, or polypropylene. Sealed battery according to item 1.
ケット兼スペーサの材質がナイロン、ポリエチレン、ポ
リプロピレン、３弗化エチレンまたは４弗化エチレンで
ある特許請求の範囲第１項記載の密閉型電池。(4) In the case of using an alkaline electrolyte, the sealed battery according to claim 1, wherein the material of the sealing gasket/spacer is nylon, polyethylene, polypropylene, trifluoroethylene, or tetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59219051A JPS6196654A (en) | 1984-10-18 | 1984-10-18 | Sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59219051A JPS6196654A (en) | 1984-10-18 | 1984-10-18 | Sealed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6196654A true JPS6196654A (en) | 1986-05-15 |
| JPH0475627B2 JPH0475627B2 (en) | 1992-12-01 |
Family
ID=16729490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59219051A Granted JPS6196654A (en) | 1984-10-18 | 1984-10-18 | Sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6196654A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421053U (en) * | 1990-06-14 | 1992-02-21 | ||
| WO2023002769A1 (en) * | 2021-07-19 | 2023-01-26 | 株式会社村田製作所 | Alkaline battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194264U (en) * | 1981-06-04 | 1982-12-09 |
-
1984
- 1984-10-18 JP JP59219051A patent/JPS6196654A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194264U (en) * | 1981-06-04 | 1982-12-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421053U (en) * | 1990-06-14 | 1992-02-21 | ||
| WO2023002769A1 (en) * | 2021-07-19 | 2023-01-26 | 株式会社村田製作所 | Alkaline battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0475627B2 (en) | 1992-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |