JPS6348742A - Flat type nonaqueous electrolyte battery - Google Patents
Flat type nonaqueous electrolyte batteryInfo
- Publication number
- JPS6348742A JPS6348742A JP61192277A JP19227786A JPS6348742A JP S6348742 A JPS6348742 A JP S6348742A JP 61192277 A JP61192277 A JP 61192277A JP 19227786 A JP19227786 A JP 19227786A JP S6348742 A JPS6348742 A JP S6348742A
- Authority
- JP
- Japan
- Prior art keywords
- fep
- etfe
- electrolyte battery
- treatment
- aqueous 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
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 20
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000004381 surface treatment Methods 0.000 claims abstract description 7
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 238000003851 corona treatment Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims abstract description 4
- 239000001257 hydrogen Substances 0.000 claims abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 claims description 2
- 229920006026 co-polymeric resin Polymers 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 14
- 230000008018 melting Effects 0.000 abstract description 14
- 238000005476 soldering Methods 0.000 abstract description 10
- 239000003792 electrolyte Substances 0.000 abstract description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000679 solder Inorganic materials 0.000 abstract description 4
- 238000009832 plasma treatment Methods 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 abstract 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 239000011888 foil Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920001774 Perfluoroether Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium 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
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/197—Sealing members characterised by the material having a layered structure
-
- 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)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は偏平型非水電解液電池に関し、更に詳しくは、
少なくとも一個の素電池から成り、各素電池が対向する
一対の金、陽薄板の各周縁部の間に介在された絶縁部材
を兼ねた熱可塑性樹脂製のシール部材と前記一対の金属
薄板どの熱・溶着により密封して形成された電池室に発
電要素を内蔵して構成される偏平型非水電解液電池に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a flat nonaqueous electrolyte battery, and more specifically,
Consisting of at least one unit cell, each unit cell has a thermoplastic resin seal member that also serves as an insulating member interposed between the peripheral edges of a pair of gold and positive thin plates facing each other, and a thermoplastic resin sealing member that also serves as an insulating member, and -Relates to a flat non-aqueous electrolyte battery that includes a power generation element built into a battery chamber that is sealed by welding.
［従来の技術］
このような１平型電池は、近年の電気又は電子機器の小
形化、薄型化の要請に応じて現れてぎたものでおり、特
に上記の偏平型非水電解液電池は、例えばＱ、５ｍｍ以
下の厚みにできること、負極として１ノチウムなどの軽
金属を用いて高エネルギー密度の系を選択できることな
どから、いわゆるＩＣカードに内蔵してこれの電源とし
て用いることが期待されている。[Prior Art] Such flat type batteries have appeared in response to the recent demand for smaller and thinner electric or electronic equipment, and in particular, the above-mentioned flat type non-aqueous electrolyte battery For example, it is expected that it can be built into a so-called IC card and used as a power source because it can be made into a thickness of 5 mm or less, and a high energy density system can be selected using a light metal such as 1-notium as the negative electrode.
このような偏平型非水電解液電池の構造は既に知られて
あり、例えば特開昭６０−２２０５３３号に記載されて
いる。The structure of such a flat non-aqueous electrolyte battery is already known, and is described in, for example, Japanese Patent Laid-Open No. 60-220533.
この電池の構造を図面の第１図を用いて説明すると、（
１）は負極集電体、負極容器及び負極端子を兼ねたステ
ンレススチールの箔（金属薄板）で、該負極集電面には
リチウム箔の負極（２）が圧着されている。（３）はポ
リプロピレン不織イロ製セパレータ、（４）は二酸化マ
ンガンにフッ素樹脂扮とアセチレンブラックを混合して
カルボキシメヂルセルロースをゲル状としたもので練合
して導電性塗１ｔ！１（５）に塗着して乾燥した正極層
である。（６）は正傳集電体と正極容器及び正極端子を
兼ねたステンレススチールの箔（金属薄板）で、正極集
電面には導電性塗膜（５）か塗布されている。一対のス
テンレススチール１（１）（６）の間には外周部に額縁
状に加工されたシール部材（７）が介在し、加圧及びｈ
Ｕ熱によりシール部材（７）をステ〉ルーススチール箔
（１）（６）の周縁部に溶着し１．電池室を密封してい
る。なお、電池室にはプロピレンカーボネートに過塩素
酸リチウムを溶解した電解液を注入している。The structure of this battery is explained using Figure 1 of the drawings. (
1) is a stainless steel foil (thin metal plate) that serves as a negative electrode current collector, a negative electrode container, and a negative electrode terminal, and a lithium foil negative electrode (2) is pressure-bonded to the negative electrode current collector surface. (3) is a polypropylene non-woven yellow separator, and (4) is a mixture of manganese dioxide, fluororesin and acetylene black, and carboxymethyl cellulose is kneaded into a gel form to make 1 ton of conductive coating! 1(5) and dried. (6) is a stainless steel foil (thin metal plate) that serves as a positive electrode current collector, a positive electrode container, and a positive electrode terminal, and a conductive coating film (5) is applied to the positive electrode current collector surface. A seal member (7) processed into a frame shape is interposed on the outer periphery between the pair of stainless steels 1 (1) (6), and pressurized and h
1. Weld the sealing member (7) to the periphery of the loose steel foils (1) and (6) using U heat. The battery compartment is sealed. Note that an electrolytic solution containing lithium perchlorate dissolved in propylene carbonate is injected into the battery compartment.
上記特開昭６０−２２０５３３号においては、シール部
材（７）として、特定のポリオレフィン樹脂を組み合わ
せた三層の積層体が提案されてあり、これは、ステンレ
ススチール１（１）（６）との熱溶着性に優れているこ
と（熱溶着性）、熱溶着時にシール部材（７〉が変形薄
化しないこと（寸法安定性）、電解液と反応せず、電解
液が浸透もしないこと（耐電解液性）、水分の透過が少
ないこと（防湿性）などの点で優れたもので必つ１こ
。In the above-mentioned Japanese Patent Laid-Open No. 60-220533, a three-layer laminate in which a specific polyolefin resin is combined is proposed as the sealing member (7), and this is a three-layer laminate in which stainless steel 1 (1) (6) and stainless steel 1 (1) (6) are combined. The sealing member (7) should not be deformed or thinned during heat welding (dimensional stability), it should not react with the electrolyte, and the electrolyte should not penetrate (resistance). It has excellent properties such as electrolyte properties) and low moisture permeation (moisture resistance).
.
［発明が解決しようとする問題点コ
ところで、この電池をＩＣカード等の電子部品や機器に
粗み込み、搭載する際、回路とのリード方法が問題とな
る。リード方法としては、接触端子リード法、電気溶接
リード法、ハンダ付はリード法があげられ、静的な状態
で使用する殿器では前２者の方法で充分であるが、ＩＣ
カードのようにベンディング等の動的な状態では不安定
となり、ハンダ付はリード法が最適である。又、プリン
ト基板に直接搭載する場合にはハンダ付はリード法が普
通であり、この場合自動ハンダ付は装置への適性、すな
わち耐熱性が求められる。[Problems to be Solved by the Invention] By the way, when this battery is incorporated into and mounted on electronic parts or devices such as IC cards, the method of leading to the circuit becomes a problem. Lead methods include the contact terminal lead method, electric welding lead method, and soldering lead method.The first two methods are sufficient for devices that are used in a static state, but for IC
It becomes unstable in a dynamic state such as bending like a card, so the lead method is best for soldering. Furthermore, when mounting directly on a printed circuit board, soldering is usually done by the lead method, and in this case, automatic soldering requires suitability for the device, that is, heat resistance.
しかるに、特開昭６０−２２０５３３号公報のシール部
材は、ハンダの熔融温度である１８０’Ｃに耐えること
ができず、シール部材が劣化して剥離してしまうという
問題があった。However, the sealing member disclosed in Japanese Patent Application Laid-Open No. 60-220533 cannot withstand the melting temperature of solder, 180'C, and has a problem in that the sealing member deteriorates and peels off.
従って、本発明は、上述の熱溶着性、寸法安定性、耐電
解液性、防湿性をみたすとともにハンダ付けの際に劣化
しないシール部材を用いて、実用性の高い（扁平型非水
電解液電池を提供することを目的とする。Therefore, the present invention uses a sealing member that satisfies the above-mentioned thermal weldability, dimensional stability, electrolyte resistance, and moisture resistance, and does not deteriorate during soldering, and is highly practical (flat type non-aqueous electrolyte The purpose is to provide batteries.
［問題点を解決するための手段］
この目的を達成するため、本発明は、少なくとも一個の
素電池から成り、各素電池が対向する一対の金属薄板の
各周縁部の間に介在された絶縁部材を兼ねた熱可塑性樹
脂製のシール部月と前記−対の金属薄板との熱溶着によ
り密封して形成された電池室に発電要素を内蔵して構成
される偏平型非水電解液電池において、シール部材が、
易接着化のための表面処理を施したエチレン−四フッ化
エチレン共重合樹脂（ＥＴＦＥ）又は四フッ化エチレン
−六フッ化プロピレン共重合樹脂（ＦＥＰ）を両面とす
るシートからなることを特徴とする隔平型非水電解液電
池を提供する。[Means for Solving the Problems] In order to achieve this object, the present invention comprises at least one unit cell, and each unit cell has an insulator interposed between the peripheral edges of a pair of opposing thin metal plates. In a flat type non-aqueous electrolyte battery configured by incorporating a power generation element in a battery chamber formed by thermally welding and sealing a thermoplastic resin sealing part that also serves as a member and the pair of metal thin plates. , the seal member is
It is characterized by being made of a sheet with both sides made of ethylene-tetrafluoroethylene copolymer resin (ETFE) or tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP) that has been surface-treated to facilitate adhesion. The present invention provides a separate flat type non-aqueous electrolyte battery.
なお、ここでいう易接着化のための表面処理とは、例え
ば、空気中又は酸素１０Ｄｐｍ以下の雰囲気でのコロナ
放電処理、水素や稀ガス（ヘリウム、アルゴンなど）の
低温プラズマによる処理を意味する。Note that the surface treatment for facilitating adhesion here means, for example, corona discharge treatment in air or an atmosphere with oxygen of 10 Dpm or less, treatment with low-temperature plasma of hydrogen or rare gas (helium, argon, etc.). .
［作用］
本発明にかかるシール部材のＥＴＦＥヤＦＥＰの融点は
ハンダ付けの温度より高い。また、上述の表面処理によ
り、ＥＴＦＥ又はＦＩＥＰの表面が変質して比較的低い
温度で金属と溶着可能になるが、この変質は、表面から
僅かに３００〜１００オングストロ一ム程度でおり、こ
のため、ＥＴＦＥやＦＥＰの融点より低い温度で金属薄
板と溶着可能であり、しかもシール部材の変形薄化が生
じない。[Operation] The melting point of ETFE or FEP of the sealing member according to the present invention is higher than the soldering temperature. Furthermore, due to the above-mentioned surface treatment, the surface of ETFE or FIEP is altered so that it can be welded to metal at a relatively low temperature, but this alteration occurs only at a distance of about 300 to 100 angstroms from the surface. It can be welded to a thin metal plate at a temperature lower than the melting point of ETFE or FEP, and the sealing member will not be deformed or thinned.
また、この溶着温度はハンダの融点より高く、従ってハ
ンダ付けに際してシール部材の熔融や劣化か生じること
がなく、剥離も生じない。Further, this welding temperature is higher than the melting point of the solder, so that the sealing member does not melt or deteriorate during soldering, and no peeling occurs.
また、ＥＴＦＥとＦ Ｅ Ｐは、γ−ブチロラクトン、
プロピレンカーボネート、ディオキソランなどの非水電
解液に対して不活性で電解液が浸透しない。In addition, ETFE and FEP are γ-butyrolactone,
Inert to non-aqueous electrolytes such as propylene carbonate and dioxolane, and electrolytes do not penetrate.
［実施例の説明］
本発明の偏平型非水電解液電池の構造は第１図のものと
同一であり、そのシール部材のみが異なる。[Description of Examples] The structure of the flat non-aqueous electrolyte battery of the present invention is the same as that shown in FIG. 1, and only the seal member is different.
本発明に係るシール部材（７）はＥＴＦＥ（融点２６５
〜２７０’Ｃ）またはＦＥＰ （融点２５０〜２８０’
Ｃ）単層のシート、ｒＥＴＦＥまたは［：ＥＰ／ＥＴＦ
ＥまたはＦＥＰＪの層構成から成るシート、ｒＥＴＦＥ
またはＦＥＰ／（ｌ！２のシート（Ｘ＞／ＥＴＦＥまた
はＦＥＰＪの層構成から成るシートなどの両表面がＥＴ
ＦＥまたはＦＥＰから成るシートであって、しかもその
両表面に易接着化のための表面処理を施したものである
。他のシート（Ｘ）としては、ＥＴＦＥやＦＥＰの融点
で溶融せず、しかもＥＴＦＥやＦＥＰと溶着可能なシー
トが望ましく、たとえばポリ四フッ化エチレン樹脂（融
点３２０〜３３０’Ｃ）又はパーフロロアルコキシ樹脂
（融点３００〜３１０°Ｃ）が使用出来る。The seal member (7) according to the present invention is made of ETFE (melting point 265
~270'C) or FEP (melting point 250-280'
C) Single layer sheet, rETFE or [:EP/ETF
Sheet consisting of E or FEPJ layer structure, rETFE
Or a sheet of FEP/(l!2 (X>/sheet consisting of a layer structure of
It is a sheet made of FE or FEP, and both surfaces are surface-treated to facilitate adhesion. The other sheet (X) is preferably a sheet that does not melt at the melting point of ETFE or FEP and can be welded to ETFE or FEP, such as polytetrafluoroethylene resin (melting point 320-330'C) or perfluoroalkoxy resin. Resins (melting point 300-310°C) can be used.
また、本発明弐係る表面処理とは、酸系濃度１ｏｐｐｍ
以下の雰囲気または空気中でのコロナ放電処理や、水素
又は希ガス（ヘリウム、アルゴン）の低温プラズマによ
る処理を意味する。In addition, the surface treatment according to the second aspect of the present invention refers to an acid concentration of 1 oppm.
It means corona discharge treatment in the following atmosphere or air, or treatment with low-temperature plasma of hydrogen or rare gas (helium, argon).
なあ、シール部材（７）の表面がＦＥＰである場合には
、酸素濃度１０ｐｐｍ以下の窒素雰囲気下におけるコロ
ナ放電処理や上述のプラズマ処理が望ましい。In addition, when the surface of the sealing member (7) is FEP, corona discharge treatment or the above-mentioned plasma treatment in a nitrogen atmosphere with an oxygen concentration of 10 ppm or less is desirable.
本発明の非水電解液電池は、予めシール部材（７）を形
成して一対の金属薄板に溶着して電池室を構成すること
もできるし、シール部材（７）が二層おるいは三層の樹
脂から構成されている場合には、額縁状のシール部材の
構成材料の一部分く例えば表面処理されたＥＴＦＥ又は
ＦＥＰ）を一方の金属薄板に溶着し、額縁状のシール部
材の残部の構成材料（例えば「表面処理されたＥＴＦＥ
又はＦＥＰ／パーフロロアルコキシ樹脂」の層構成のシ
ート）を溶着し、位置合わせして両者を溶着して電池室
を構成することもできる。いずれの場合も、ＥＴＦＥ又
はＦＥＰの表面処理が施された面は金属薄板に溶着され
る。In the non-aqueous electrolyte battery of the present invention, the sealing member (7) can be formed in advance and welded to a pair of thin metal plates to form the battery chamber, or the sealing member (7) can be formed in two or three layers. In the case where the frame-shaped seal member is made of a layer of resin, a part of the constituent material of the frame-shaped seal member (for example, surface-treated ETFE or FEP) is welded to one of the thin metal plates, and the remaining part of the frame-shaped seal member is welded to one of the thin metal plates. materials (e.g. surface-treated ETFE)
Alternatively, the battery chamber may be constructed by welding a sheet with a layered structure of "FEP/perfluoroalkoxy resin", aligning the positions, and welding the two together. In either case, the surface-treated surface of ETFE or FEP is welded to a thin metal plate.
［試験例］
シール部材として、以下の（Ａ）〜（Ｃ）の三種類のシ
ートと、比較のためのシール部材（Ｄ＞を用いた。なお
、いずれのシール部材も額縁状に打ち抜かれている。[Test Example] As seal members, the following three types of sheets (A) to (C) and a seal member (D>) were used for comparison.In addition, all seal members were punched out in the shape of a picture frame. There is.
○シール部材（Ａ）
片面が空気中で放電処理したＥＴＦＥ （厚さ１００μ
）を二枚、未処理面同士重ねて溶着積層したシート。○Sealing member (A) ETFE with one side subjected to discharge treatment in air (thickness 100μ
) are laminated by welding, with the untreated sides stacked on top of each other.
○シール部材（Ｂ）
片面を酸素濃度１ｏｐｐｍ以下の窒素ガス雰囲気中でコ
ロナ放電処理したＦＥＰ （厚さ１２５μ）と、やはり
片面を駁素溌度１０ｐｐｍ以下の窒素ガス雰囲気中でコ
ロナ放電処理したＦＥＰ（厚さ７５μ）とを未処理面同
士重ねて溶着積層したシート。○Sealing member (B) FEP (thickness 125μ) treated with corona discharge on one side in a nitrogen gas atmosphere with an oxygen concentration of 1 oppm or less, and FEP treated with corona discharge on one side in a nitrogen gas atmosphere with a permeability of 10 ppm or less. (Thickness: 75μ) A sheet made by welding and laminating the untreated surfaces of the same.
○シール部材（Ｃ）
片面をヘリウムの低温プラズマで処理したＦＥＰ（厚さ
１２５μ）と、Ａ′）はり片面をヘリウムの低温プラズ
マで処理したＦ［三Ｐ（厚さ７５μ）とを、未処理面同
士重ねて溶着積層したシート。○Sealing member (C) FEP (thickness 125μ) treated with helium low-temperature plasma on one side, A') FEP (thickness 75μ) treated with helium low-temperature plasma on one side, and untreated. Sheets that are welded and laminated with their faces stacked one on top of the other.
○シール部材（Ｄ）
厚さ２００μのＦＥＰシート（表面処理なし）作製した
電池は第１図と同じ形状で、その大きさは３０Ｘ３０ｍ
ｍ、ステンレススチール箔（１〉及び（６）は厚さ３０
μのものを用いた。得られた電池の厚さは２６０μであ
る。○Sealing member (D) The battery made from a 200 μ thick FEP sheet (no surface treatment) has the same shape as shown in Figure 1, and its size is 30 x 30 m.
m, stainless steel foil (1> and (6) thickness 30
μ was used. The thickness of the resulting battery is 260μ.
ステンレススチールｅ（１）（６）と各シール部材（Ａ
）及び（Ｂ）との熔６は、２６０〜３１０′Ｇの各温度
で、圧力５ｋｇ／ｃ屑、時間１０秒の条件でｂＤ熱加圧
することにより行った。このときのステンレススチール
１（１）（６）と、各シール部材（Ａ）及び（Ｂ）の接
着強度（ｑ／１５ｍｍ）を第１表に示す。なＪ５、接着
強度は剥離速度３００ｍｍ／ｍ！ｎでＴ字剥離により測
定したものでおる。Stainless steel e (1) (6) and each seal member (A
) and (B) were melted by bD hot pressurization at temperatures of 260 to 310'G, pressure of 5 kg/c, and time of 10 seconds. Table 1 shows the adhesive strength (q/15 mm) between stainless steel 1 (1) (6) and each seal member (A) and (B) at this time. J5, adhesive strength is peeling speed 300mm/m! Measured by T-peel at n.
第１表
表中「−」はシール部材が流動し、薄化してしまったこ
とをしめす。In Table 1, "-" indicates that the sealing member has flowed and become thinner.
また、シール部材（Ａ）〜（Ｃ）を用いて作製した電池
のシール部分（８）に、ＪＩＳハンダ（融点約１８０’
Ｃ）を用いて、リード線をハング付けし、さらにこれを
６０℃、９０％ＲＨの条件で９０日間保存した結果、シ
ール部の剥離、内部抵抗の増加、電池厚みの増大（ふく
れ）、漏液などの現象はなかった。In addition, JIS solder (melting point approximately 180'
As a result of hanging the lead wire using C) and storing it for 90 days at 60°C and 90% RH, the seal part peeled off, internal resistance increased, battery thickness increased (bulging), and leakage occurred. There were no phenomena such as liquid.
［効果］
以上のように、本発明によれば、熟溶着性、寸法安定ｉ
生、防振性などを満たすと共に、ハンダ付けか可能で、
実用性の高い偏平型非水電解液電池が提供される。[Effects] As described above, according to the present invention, mature weldability and dimensional stability i
In addition to satisfying vibration-proof properties, soldering is also possible.
A highly practical flat non-aqueous electrolyte battery is provided.
図面の第１図は偏平型非水電解液電池の断面図でおる。
（１）（６）・・・金属薄板
（２）・・・９極 （３）・・・セパレータ（４）・
・・正極図 （５）・・・導電性塗膜（７）シール部材FIG. 1 of the drawings is a sectional view of a flat type non-aqueous electrolyte battery. (1) (6)...Thin metal plate (2)...9 poles (3)...Separator (4)
・・Positive electrode figure (5) ・・Conductive coating film (7) Seal member
Claims (1)
する一対の金属薄板の各周縁部の間に介在された絶縁部
材を兼ねた熱可塑性樹脂製のシール部材と前記一対の金
属薄板との熱溶着により密封して形成された電池室に発
電要素を内蔵して構成される偏平型非水電解液電池にお
いて、シール部材が、易接着化のための表面処理を施し
たエチレン−四フッ化エチレン共重合樹脂（ＥＴＦＥ）
又は四フッ化エチレン−六フッ化プロピレン共重合樹脂
（ＦＥＰ）を両面とするシートからなることを特徴とす
る偏平型非水電解液電池。 ２）表面処理がコロナ放電処理であることを特徴とする
特許請求の範囲第１）項記載の偏平型非水電解液電池。 ３）コロナ放電処理が酸素１０ｐｐｍ以下の雰囲気で行
われることを特徴とする特許請求の範囲第２）項記載の
偏平型非水電解液電池。 ４）表面処理が、水素又は稀ガスの低温プラズマによる
処理であることを特徴とする特許請求の範囲第１）項記
載の偏平型非水電解液電池。[Scope of Claims] 1) A sealing member made of a thermoplastic resin which is composed of at least one unit cell and which also serves as an insulating member and which is interposed between the peripheral edges of a pair of opposing thin metal plates of each unit cell; In a flat non-aqueous electrolyte battery that includes a power generating element built into a battery chamber that is sealed by thermal welding with a pair of thin metal plates, the sealing member is surface-treated to facilitate adhesion. Ethylene-tetrafluoroethylene copolymer resin (ETFE)
Or, a flat non-aqueous electrolyte battery comprising a sheet having both sides made of tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP). 2) The flat non-aqueous electrolyte battery according to claim 1, wherein the surface treatment is corona discharge treatment. 3) The flat nonaqueous electrolyte battery according to claim 2), wherein the corona discharge treatment is performed in an atmosphere containing oxygen of 10 ppm or less. 4) The flat non-aqueous electrolyte battery according to claim 1, wherein the surface treatment is a treatment using low-temperature plasma of hydrogen or rare gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61192277A JPS6348742A (en) | 1986-08-18 | 1986-08-18 | Flat type nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61192277A JPS6348742A (en) | 1986-08-18 | 1986-08-18 | Flat type nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6348742A true JPS6348742A (en) | 1988-03-01 |
Family
ID=16288600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61192277A Pending JPS6348742A (en) | 1986-08-18 | 1986-08-18 | Flat type nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6348742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002198017A (en) * | 2000-12-26 | 2002-07-12 | Honda Motor Co Ltd | Gasket for lithium cell |
-
1986
- 1986-08-18 JP JP61192277A patent/JPS6348742A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002198017A (en) * | 2000-12-26 | 2002-07-12 | Honda Motor Co Ltd | Gasket for lithium cell |
| JP4516206B2 (en) * | 2000-12-26 | 2010-08-04 | 本田技研工業株式会社 | Lithium battery gasket |
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