JP2605463B2 - Batteries - Google Patents

Batteries

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Publication number
JP2605463B2
JP2605463B2 JP2224968A JP22496890A JP2605463B2 JP 2605463 B2 JP2605463 B2 JP 2605463B2 JP 2224968 A JP2224968 A JP 2224968A JP 22496890 A JP22496890 A JP 22496890A JP 2605463 B2 JP2605463 B2 JP 2605463B2
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JP
Japan
Prior art keywords
battery
film
synthetic resin
metal layer
surfaces
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.)
Expired - Lifetime
Application number
JP2224968A
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Japanese (ja)
Other versions
JPH04106865A (en
Inventor
賢治 中井
健介 弘中
晃二 東本
久顯 高林
Original Assignee
新神戸電機株式会社
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 新神戸電機株式会社 filed Critical 新神戸電機株式会社
Priority to JP2224968A priority Critical patent/JP2605463B2/en
Publication of JPH04106865A publication Critical patent/JPH04106865A/en
Application granted granted Critical
Publication of JP2605463B2 publication Critical patent/JP2605463B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/20Current conducting connections for cells
    • H01M2/30Terminals
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0202Cases, jackets or wrappings for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
    • H01M2/0207Flat-shaped cells or batteries of flat cells
    • H01M2/0212Flat-shaped cells or batteries of flat cells with plate-like or sheet-like terminals
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0275Cases, jackets or wrappings characterised by the material of flexible envelopes or bags around open cell elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/02Cases, jackets or wrappings
    • H01M2/0257Cases, jackets or wrappings characterised by the material
    • H01M2/0287Cases, jackets or wrappings characterised by the material comprising layers

Description

【発明の詳細な説明】 産業上の利用分野 本発明は電池に関するものである。 TECHNICAL FIELD The present invention on the Detailed Description of the Invention industry is related to the battery.

従来の技術 近年電池を電源として作動する機器の小形化、薄形化に伴う、電池の小形化、薄形化の要求に応えるものとして、薄形の正極、負極およびセパレータからなる発電要素を合成樹脂シートで被覆した電池がある。 Miniaturization of operating the prior art In recent years the battery as a power source, due to the thinning, miniaturization of the battery, as to meet the demand for thinning, thin positive electrode, synthesized power generating element composed of a negative electrode and the separator there are batteries coated with a resin sheet. このような電池において、被覆される合成樹脂は単一層合成樹脂であることが多く、発電要素外周縁部で接着、封口されている。 In such a cell, the synthetic resin to be coated is often a single layer synthetic resin, the adhesive power generation element outer periphery are sealed.

発明が解決しようとする課題 しかし、上記のような電池構成では、被覆される合成樹脂は通常絶縁性であるため、電極から端子を外部に取り出す必要がある。 SUMMARY OF THE INVENTION However, in the battery structure described above, since the synthetic resin to be coated are usually insulating, it is necessary to take out from the electrode terminals to the outside.

また、負極活物質に例えばリチウムなどの水、酸素と非常に反応性の高いものを用いた場合、リチウムの劣化および安全性の点から、水(水蒸気)、酸素の進入を防ぐために電池を完全密閉化しなければならず、このような場合において、端子が突出した構造では端子部の封口が複雑となり、非常にやっかいである。 The water of the anode active material such as lithium, when used as a high oxygen and very reactive, in terms of deterioration and safety of the lithium, water (steam), the battery in order to prevent the ingress of oxygen full must be sealed of, in such a case, the sealing of the terminal is complicated in structure terminal protrudes, is very troublesome.

しかも、このような突出した構造の端子が存在することで電池の美的外観をそこなう可能性もある。 Moreover, there is a possibility that impair the aesthetic appearance of the battery by terminals such protruding structure is present. また、樹脂フィルムは、一般的に柔軟性に富んでいるが、突き刺し強度に弱かったり、ガス透過性があったりする。 Further, the resin film is generally rich in flexibility, or weak in piercing strength, or there is gas permeable. 薄型の密閉形電池では集電性はもちろん柔軟性と強度とガスバリア性を共に兼ね備えた外装が必要とされる。 Current collection in sealed batteries thin is required course exterior that combines both the flexibility and strength and gas barrier properties.

課題を解決するための手段 本発明の電池は、正極、負極およびセパレータからなる極板群を1対のシート状もしくはフィルム状の合成樹脂にて被覆することにより構成される電池において、前記1対のシート状もしくはフィルム状の合成樹脂は、それぞれその両表面に金属層が配された複数の層よりなるラミネート構造を有し、該金属層が前記合成樹脂の周辺部を除いた部分に位置し、前記両表面の金属層間を電気的に接続する通電用スルーホールを有している。 Battery means present invention for solving the problem, the positive electrode, the battery constructed by coating of a negative electrode and a pair of the electrode plate assembly consisting of a separator sheet or film-shaped synthetic resin, the pair sheet or film-shaped synthetic resins each have a laminated structure in which a metal layer is formed of a plurality of layers disposed on both surfaces, the metal layer is located at a portion excluding the peripheral portion of the synthetic resin has a current supply through hole for electrically connecting the metal layers of the two surfaces.

従って、ラミネート構造をした層が、熱溶着性を有する合成樹脂フィルム、ガスバリア性を有する合成樹脂フィルム、フィルム保護用合成樹脂フィルムおよび集電性とガスバリア性とを共有する合成樹脂フィルムからなり、このシート状もたはフィルム状の2組の合成樹脂で正極、負極およびセパレータを被覆した電池である。 Accordingly, the layer was laminated structure, a synthetic resin film having thermal adhesiveness, a synthetic resin film, synthetic resin film that shares a film protective synthetic resin film and current collecting property and gas barrier property having a gas barrier property, the sheet other is a cell coated with the positive electrode, negative electrode and separator film form two sets of synthetic resin.

作用 金属層がラミネート合成樹脂の両表面に形成され、通電用スルーホールで電気的に接続されているので、電池の外側となる金属層を電池端子として使用することができる。 Acting metal layer is formed on both surfaces of the laminate synthetic resin, because it is electrically connected with the current supply through hole, it is possible to use a metal layer serving as the outer battery as a battery terminal.

電池から端子を突出させることなく電池を構成することができる。 It is possible to construct a battery without protruding the terminal from the battery. 従って、電池の完全密閉化が容易に行え、 Therefore, easy to complete sealing of the battery,
電池の発電要素に悪影響を与える物質の電池内への進入を断つ。 Cut off entry into the battery of substances that adversely affect the power generating element of the battery. すなわち、柔軟性、強度、ガスバリア性を兼ね備えた電池が得られる。 That is, flexibility, strength, battery that combines the gas barrier properties are obtained.

実施例 第1図は、本発明におけるリチウム二次電池であり、 Example Figure 1 is a lithium secondary battery of the present invention,
1はマンガン酸化物と導電助剤およびバインダーとを混合した合剤電極である正極、2は金属リチウムである負極、3は過塩素酸リチウムが1モル/dm 3となるように溶解させた炭酸プロピレンと1、2−ジメトキシエタンの混合溶液を含浸させたポリプロピレンの不織布からなるセパレータ、4は電池を被覆するラミネート構造をしたフィルム状の合成樹脂である。 The positive electrode 1 is a mixture electrode obtained by mixing a manganese oxide and a conductive aid and a binder, the negative electrode 2 which is metallic lithium, 3 lithium perchlorate was dissolved at 1 mol / dm 3 carbonate propylene and 1,2-dimethoxyethane mixture solution separator made of nonwoven polypropylene impregnated with a, 4 is a film-shaped synthetic resin in which the laminated structure covering the battery. 正極1はフィルム状の合成樹脂4の表面にスクリーン印刷により形成し、正極し、セパレータ3、負極2の順(この逆の順でもよい) The positive electrode 1 was formed by screen printing on the surface of the film-shaped synthetic resin 4, and the positive electrode, the separator 3, (or in the order of the reverse) order the anode 2
に積層された発電要素を2組のフィルム状の合成樹脂で覆い、発電要素周縁部を熱溶着により封口し、完全密閉化した。 Stacked power generating element covered with two pairs of film-like synthetic resin, the power generating element periphery was sealed by thermal welding, and completely seal off.

第2図は、発電要素を被覆するフィルム状合成樹脂4 Figure 2 is a film-like synthetic resin 4 covering the power generating element
のラミネート構造を示している。 It shows the laminate structure. すなわち、厚み方向に拡大したもので、ラミネート構造を構成する層の積み重ねの順が、電池活物質側より、ガスバリア性の集電体としての機能を兼ね備えたアルミニウム蒸着膜5、熱溶着の可能な変性ポリエチレンフィルム6、ガスバリア性を有したポリ塩化ビニリデンフィルム7、これらのフィルムを保護するためのポリエチレンテレフタレートフィルム8、そしてアルミニウム蒸着膜5となっている。 That is, an enlarged in the thickness direction, the order of stacking of the layers constituting the laminate structure, than the battery active material side, the aluminum deposition film 5 also functions as a gas barrier property of the current collector capable of heat welding modified polyethylene film 6, and has a polyethylene terephthalate film 8 and an aluminum vapor deposition film 5, for protecting a polyvinylidene chloride film 7 having a gas barrier property, these films. この合成樹脂層表面に蒸着されたアルミニウム蒸着膜5は合成樹脂の周辺部を除いた部分に位置しており、しかも合成樹脂層に電子伝導性を有したスルホール9が設けられている。 Aluminum deposited layer 5 deposited on the synthetic resin layer surface is located in a portion excluding the peripheral portion of the synthetic resin, moreover has through holes 9 having electron conductivity is provided in the synthetic resin layer. 該スルーホール9の数を多くすることにより、 By increasing the number of the through-hole 9,
ハイレート指向の電池にも対応することができる。 It is possible to cope with batteries of high rate oriented.

本発明の実施例で得られたリチウム二次電池の各部材の厚みを第1表に示す。 The thickness of each member of the lithium secondary batteries obtained in Examples of the present invention shown in Table 1.

本発明は、二次電池のみならず一次電池においても十分実施可能な事は言うに及ばす、また、固体電解質を用いた電池にも適用することができる。 The present invention also sufficiently feasible that the primary battery not only secondary batteries be to mention, also, can be applied to a battery using a solid electrolyte.

発明の効果 上述のように本発明によれば薄形電池を容易に作成することができ、また、電池に柔軟性、強度、ガスバリア性を与えることが可能である。 The thin battery according to the present invention as the effect described above of the invention can be easily created, also, it is possible to give flexibility, strength, gas barrier properties to the battery. さらに端子が突出しない構造であるので電池の完全密閉のための封口も容易となり、封口部をより強固なものとすることができ、而も電池の美的外観も得られる等工業的価値甚だ大なるものである。 Furthermore even sealing for complete sealing of the battery is facilitated since a structure in which the terminal does not protrude, it is possible to the sealing portion and the stronger ones, Thus also the aesthetic appearance and the like becomes large industrial value very obtained battery it is intended.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

第1図は本発明の一実施例における電池の断面図、第2 Figure 1 is a sectional view of a battery in an embodiment of the present invention, the second
図は本発明の電池を被覆するラミネート構造のフィルム状の合成樹脂の要部断面図である。 Figure is a fragmentary cross-sectional view of the film-shaped synthetic resin laminate structure covering the battery of the present invention. 1は正極、2は負極、3はセパレータ、4は合成樹脂、 1 the positive electrode, 2 is negative electrode, 3 a separator, 4 a synthetic resin,
5はアルミニウム蒸着膜、6は変性ポリエチレン層、7 5 aluminum deposited layer, 6 modified polyethylene layer, 7
はポリ塩化ビニリデン層、8はポリエチレンテレフタレートフィルム層、9はスルーホール The polyvinylidene chloride layer, a polyethylene terephthalate film layer 8, the through hole 9

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−29065(JP,A) 特開 昭61−190855(JP,A) 特開 昭63−174265(JP,A) ────────────────────────────────────────────────── ─── of the front page continued (56) reference Patent Sho 61-29065 (JP, a) JP Akira 61-190855 (JP, a) JP Akira 63-174265 (JP, a)

Claims (1)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】正極、負極およびセパレータからなる極板群を1対のシート状もしくはフィルム状の合成樹脂にて被覆することにより構成される電池において、前記1対のシート状もしくはフィルム状の合成樹脂は、それぞれその両表面に金属層が配された複数の層よりなるラミネート構造を有し、該金属層が前記合成樹脂の周辺部を除いた部分に位置し、前記両表面の金属層間を電気的に接続する通電用スルーホールを有することを特徴とする電池。 1. A positive electrode, the battery constructed by coating of a negative electrode and a pair of the electrode plate assembly consisting of a separator sheet or film-shaped synthetic resins, sheet or film-shaped synthetic of said pair resins each have a laminated structure in which a metal layer is formed of a plurality of layers disposed on both surfaces, the metal layer is located at a portion excluding the peripheral portion of the synthetic resin, the metal layers of the two surfaces battery characterized by having a current-carrying through hole for electrically connecting.
JP2224968A 1990-08-27 1990-08-27 Batteries Expired - Lifetime JP2605463B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2224968A JP2605463B2 (en) 1990-08-27 1990-08-27 Batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2224968A JP2605463B2 (en) 1990-08-27 1990-08-27 Batteries

Publications (2)

Publication Number Publication Date
JPH04106865A JPH04106865A (en) 1992-04-08
JP2605463B2 true JP2605463B2 (en) 1997-04-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2224968A Expired - Lifetime JP2605463B2 (en) 1990-08-27 1990-08-27 Batteries

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915439B1 (en) * 2001-09-21 2009-09-03 에버레디 배터리 컴퍼니, 인크. Flexible thin battery and method of manufacturing same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6045652A (en) * 1992-06-17 2000-04-04 Micron Communications, Inc. Method of manufacturing an enclosed transceiver
US7158031B2 (en) 1992-08-12 2007-01-02 Micron Technology, Inc. Thin, flexible, RFID label and system for use
US5326652A (en) * 1993-01-25 1994-07-05 Micron Semiconductor, Inc. Battery package and method using flexible polymer films having a deposited layer of an inorganic material
US6339385B1 (en) 1997-08-20 2002-01-15 Micron Technology, Inc. Electronic communication devices, methods of forming electrical communication devices, and communication methods

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129065A (en) * 1984-07-19 1986-02-08 Matsushita Electric Ind Co Ltd Flat type nonaqueous electrolyte cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915439B1 (en) * 2001-09-21 2009-09-03 에버레디 배터리 컴퍼니, 인크. Flexible thin battery and method of manufacturing same

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Publication number Publication date
JPH04106865A (en) 1992-04-08

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