JPH0218860A - Battery - Google Patents

Battery

Info

Publication number
JPH0218860A
JPH0218860A JP63168144A JP16814488A JPH0218860A JP H0218860 A JPH0218860 A JP H0218860A JP 63168144 A JP63168144 A JP 63168144A JP 16814488 A JP16814488 A JP 16814488A JP H0218860 A JPH0218860 A JP H0218860A
Authority
JP
Japan
Prior art keywords
electrode
battery
fixing member
positive electrode
positive
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
Application number
JP63168144A
Other languages
Japanese (ja)
Inventor
Kinya Suzuki
欽也 鈴木
Masao Ogawa
雅男 小川
Katsuhiko Arai
克彦 新井
Yoshitomo Masuda
善友 増田
Tadashi Fuse
布施 正
Tetsuro Amano
天野 哲朗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP63168144A priority Critical patent/JPH0218860A/en
Publication of JPH0218860A publication Critical patent/JPH0218860A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To provide a battery with high capacity and suppress the manufacturing cost by driving an electrode fixing member of metal having a boss into an electrode, and by joining the electrode with a shell electrically. CONSTITUTION:An electrode fixing member 6 is made in the form of a wedge and has a boss at each end, and is used for at least either of the positive and negative electrodes. For example the fixing member 6 is driven into the positive electrode 3, which is connected with the body 1 of a shell electrically through the fixing member 6. This connection is accomplished only by driving fixing member 6 in simple construction, so that the manufacturing cost is suppressed. Because the inner capacity of the body 1 can be used wastelessly, a large quantity of battery contents can be accommodated to achieve a battery with high capacity.

Description

【発明の詳細な説明】 倉栗上辺田圃−分互 本発明は、正極、負極、 fltM質等の電池構成部材
が外装缶内に収容されてなる電池に関し、更に詳述する
と、電極と外装缶との良好なる電気的接続が保持され、
使用中に内部抵抗が急激に増加するなどの電極と外装缶
との間の接続不良に起因する不都合を生じることのない
簡易で信頼性の高い電池に関する。
Detailed Description of the Invention The present invention relates to a battery in which battery components such as a positive electrode, a negative electrode, and fltM are housed in an outer can. A good electrical connection is maintained with the
The present invention relates to a simple and highly reliable battery that does not suffer from problems caused by poor connection between an electrode and an outer can, such as a sudden increase in internal resistance during use.

死米夙抜先 電池の構成は、通常正極、負極、電解質、セパレーター
等の電池構成部材が外装缶に収容された構成とされてい
る。このような電池において正極。
The structure of a dead rice battery is usually such that battery components such as a positive electrode, a negative electrode, an electrolyte, and a separator are housed in an outer can. In such a battery the positive electrode.

負極は外装缶の正極部、負極部にそれぞれ電気的に接続
されるが、この接続に不良が生じると、電池作動時に電
気ノイズが入り、安定した出力が得られなくなる。外装
缶と電極との接続方法としては、従来から種々の方法が
採用、提案されており、例えば第9図に示したボタン電
池のように正極a及び負極すと正極缶Cとの間に弾性板
(スプリング)dを介装し、弾性板dの押圧力によって
正・負極a、bと正・負極部Q、eとの接触状態を保っ
ているもの、第10図に示したコイン形電池のように金
属ネットf、fを予め正・負極部c、eに溶接し、その
金属ネットf、fの凹凸内に正・負極a、bを埋め込む
ことによって正・負極a。
The negative electrode is electrically connected to the positive and negative electrodes of the outer can, respectively, but if a fault occurs in these connections, electrical noise will occur during battery operation, making it impossible to obtain stable output. Various methods have been adopted and proposed for connecting the outer can and the electrodes. For example, as in the button battery shown in Fig. A coin-shaped battery shown in Fig. 10, in which a plate (spring) d is interposed and the positive/negative electrodes a, b and the positive/negative electrode parts Q, e are kept in contact by the pressing force of the elastic plate d. Positive and negative electrodes a are formed by welding metal nets f and f to the positive and negative electrode parts c and e in advance, and embedding the positive and negative electrodes a and b in the unevenness of the metal nets f and f, as shown in FIG.

bと正・負極部a、eとが接続されているもの、また第
11図に示したコイン形電池のように集電体として正極
aに埋設した金属ネット(正極集電体)gの金属露出箇
所と正極缶Cとを溶接り、hしたものなどがある。なお
第1〜3図中iは負極四重体、Jはセパレーター、kは
パツキン、■はガスケットである。
b and the positive and negative electrode parts a and e are connected, and the metal of the metal net (positive electrode current collector) g embedded in the positive electrode a as a current collector like the coin-shaped battery shown in FIG. There is one in which the exposed part and the positive electrode can C are welded together. In FIGS. 1 to 3, i is a negative electrode quadruple, J is a separator, k is a packing, and ■ is a gasket.

発明が解決しようとする課題 ここで電池を構成するにあたり、要求されることは、規
格化された電池容器内にできるだけ多量の電極活物質を
つめ込み、高容量を達成すると共に、安定した出力を維
持し、かつ安価にて11造することであるが、上記の電
池はこれらの点で問題点を有する。即ち、第9図に示し
たボタン形電池にあっては、弾性板dが1!池容器内で
余分な容積を占有し、電極活物質の収容スペースが少な
くなってしまう。また、第10図に示したコイン形電池
にあっては、金属ネットfへの電極活物質の埋め込みで
は、強固なW1極と外装缶との固着状態が得られず、長
期信頼性に乏しい。更に、第11図のコイン形電池は正
極aと外装缶Cとの電気的接続は強固で信頼性は高いが
、その製造工程が煩雑になり、コスト高になってしまう
Problems to be Solved by the Invention When constructing a battery, what is required is to pack as much electrode active material as possible into a standardized battery container, to achieve high capacity, and to maintain stable output. However, the above-mentioned batteries have problems in these respects. That is, in the button type battery shown in FIG. 9, the elastic plate d is 1! This occupies extra volume within the pond container, reducing the space available for accommodating the electrode active material. Furthermore, in the coin-shaped battery shown in FIG. 10, embedding the electrode active material in the metal net f does not provide a strong adhesion between the W1 electrode and the outer can, resulting in poor long-term reliability. Furthermore, although the coin-shaped battery shown in FIG. 11 has a strong electrical connection between the positive electrode a and the outer can C and is highly reliable, the manufacturing process is complicated and the cost is high.

本発明は、上記事情に鑑みなされたもので、使用中に内
部抵抗が急激に増加するようなことのない安定した電極
と外装缶との電気的接続が保持され、更に電池容器(外
装缶)の容積をむだなく有効に使用し得、かつ安価にて
製造することができる電池を提供することを目的とする
The present invention was made in view of the above circumstances, and it maintains a stable electrical connection between the electrode and the outer can without causing a sudden increase in internal resistance during use. An object of the present invention is to provide a battery that can use the volume of the battery effectively without wasting it, and can be manufactured at low cost.

を  するための   び 本発明は、上記目的を達成するため、正極、負極及び電
解質を具備し、これら電池構成部材を外装缶内に収容し
てなる電池において、」1記正極及び/又は負極に金属
製電極固定部材をこれに突設された突起を打ち込むこと
により一体化し、この固定部材を外装缶に導電状態に固
定して、該正極及び/又は負極を上記固定部材を介して
上記外装缶に電気的に接続したことを特徴とする電池を
提供するものである。
In order to achieve the above object, the present invention provides a battery comprising a positive electrode, a negative electrode, and an electrolyte, and in which these battery components are housed in an outer case. A metal electrode fixing member is integrated by driving a protrusion into it, and this fixing member is fixed to the outer can in a conductive state, and the positive electrode and/or negative electrode is attached to the outer can via the fixing member. The present invention provides a battery characterized in that the battery is electrically connected to the battery.

即ち、本発明電池は、金属製電極固定部材をこれに突設
された突起を正極及び/又は負極に打ち込むことにより
正極及び/又は負極と一体化し。
That is, in the battery of the present invention, a metal electrode fixing member is integrated with a positive electrode and/or a negative electrode by driving a projection provided thereon into the positive electrode and/or negative electrode.

この固定部材を外装缶に導電状態に固定させたことによ
って、外装缶と正極や外装缶と負極との安定した電気的
接続が上記固定部材を介して保持されると共に、電池容
器(外装缶)内のスペースを有効に利用し得、更に電池
の製造工程において電極内の集電体を露出させる作業、
リード線のとり出し等の余分な]−程を省略して製造工
程を簡略化し得る簡易で信頼性の高い高性能電池である
By fixing this fixing member to the outer can in a conductive state, a stable electrical connection between the outer can and the positive electrode and between the outer can and the negative electrode is maintained via the fixing member, and the battery container (outer can) work that allows effective use of internal space and exposes the current collector within the electrode during the battery manufacturing process;
This is a simple, highly reliable, and high-performance battery that can simplify the manufacturing process by omitting unnecessary steps such as taking out lead wires.

以下、本発明につき更に詳しく説明する。The present invention will be explained in more detail below.

本発明に係る電池は、上記したように正極、負極及び電
解質を具備し、これら電池構成部材を外装缶内に1戊容
してなるものである。
As described above, the battery according to the present invention includes a positive electrode, a negative electrode, and an electrolyte, and these battery components are housed in an outer case.

ここで、上記正極及び負極を構成する活物質としては、
特に制限されるものではないが、後述する電極固定部材
の突起を打ち込み易い金属或いは金属酸化物、金属硫化
物、フッ化炭素、有機導電性高分子材料等の粉体をバイ
ンダーで固めたもの又は電解重合法により製造した膜状
の有機導電性高分子材料等が好適に使用される。これら
の中で特に正極活物質としては、電解重合法により製造
した膜状の有機導電性高分子材料、特にポリアニリン又
はその誘導体が好適に用いられる。ここで、本発明電池
に用いられるff1極には、後述する固定部材を固定し
易く、かつ集電効率が高いために固定部材を小形化でき
るという点から内部に全屈製集電極を有するものが好ま
しいが、電極活物質として上記の電解重合法により製造
した有機導電性高分子膜を使用する場合、その電解重合
時に重合極として用いた金yC1!極をそのまま電池電
極の集電極とすることができる。なお、この場合集電極
(電解重合時には重合極)としては、網状金属が好まし
い。また、正極活物質として有機導電性高分子材料、特
にポリアニリン又はその誘導体を用いる場合、負極活物
質としてはリチウム金属又はクチ911合金を使用する
ことが好ましい。この場合、リチウム合金の種類に特に
制限はなく、例えばリチウムとアルミニウム、マグネシ
ウム、インジウム、水銀、亜鉛、カドミウム、鉛、ビス
マス、錫、アンチモン等の1種又は2種以上との合金な
どを好適に使用し得る。これらの中では、特にアルミニ
ウムとリチウムとの合金を用いることが負極特性、成形
性の点で好ましい。なお、リチウム合金を使用する場合
、リチウムと合金化すべき金属のリチウム合金化は電池
容器内で行なうことができる。
Here, the active materials constituting the positive electrode and negative electrode are as follows:
Although not particularly limited, metals or powders of metal oxides, metal sulfides, carbon fluoride, organic conductive polymer materials, etc. hardened with a binder into which the protrusions of the electrode fixing member described later can be easily driven, or A membrane-shaped organic conductive polymer material produced by electrolytic polymerization is preferably used. Among these, particularly as the positive electrode active material, a membrane-shaped organic conductive polymer material produced by electrolytic polymerization, particularly polyaniline or a derivative thereof, is preferably used. Here, the ff1 pole used in the battery of the present invention has a fully bent collector electrode inside because it is easy to fix the fixing member described later and the fixing member can be made smaller due to its high current collection efficiency. However, when using the organic conductive polymer film produced by the above electrolytic polymerization method as the electrode active material, the gold yC1! used as the polymerization electrode during the electrolytic polymerization is preferable. The electrode can be used as it is as a collecting electrode of a battery electrode. In this case, the collector electrode (or polymerization electrode in electrolytic polymerization) is preferably a mesh metal. Furthermore, when an organic conductive polymer material, particularly polyaniline or a derivative thereof, is used as the positive electrode active material, it is preferable to use lithium metal or Kuchi 911 alloy as the negative electrode active material. In this case, there is no particular restriction on the type of lithium alloy; for example, alloys of lithium and one or more of aluminum, magnesium, indium, mercury, zinc, cadmium, lead, bismuth, tin, antimony, etc. are preferable. Can be used. Among these, it is particularly preferable to use an alloy of aluminum and lithium in terms of negative electrode characteristics and formability. Note that when a lithium alloy is used, lithium alloying of the metal to be alloyed with lithium can be performed within the battery container.

次に、電解質としては、特に限定されるものではなく、
正極活物質及び負極活物質の種類、つまり電池系によっ
て適宜選択され、液体電解質(電解液)でも固体電解質
でも良い。例えば、正極活物質としてポリアニリン又は
その誘導体、負極活物質としてリチウム金属又はリチウ
ム合金を使用する場合、電解液としては、特に限定され
るものではないが、LiCQO4,Li、BF4.Li
PF、。
Next, the electrolyte is not particularly limited,
The type of positive electrode active material and negative electrode active material, that is, the battery system, is appropriately selected, and the electrolyte may be a liquid electrolyte (electrolytic solution) or a solid electrolyte. For example, when polyaniline or a derivative thereof is used as the positive electrode active material, and lithium metal or lithium alloy is used as the negative electrode active material, the electrolyte is not particularly limited, but LiCQO4, Li, BF4. Li
P.F.

Li5O,CF、などの電解質をプロピレンカーボネー
ト、エチレンカーボネート、ベンゾニトリル。
Propylene carbonate, ethylene carbonate, benzonitrile as an electrolyte such as Li5O, CF, etc.

テトラヒドロフラン、2−メチルテトラヒドロフラン、
γ−ブチロラクトン、ジオキソラン、塩化メチレン、ト
リエチルフォスフニー1−、トリエチルフォスアアイト
、硫酸ジメチル、ジメチルホルムアミド、ジメチルアセ
トアミド、ジメチルスルフオキシドデジオキサン、ジメ
トキシエタン、ポリエチレングリコール、スルフオラン
、ジクロロエタン、クロルベンゼン、ニトロベンゼンな
どの有機溶媒の1種又は2種以上の混合物に溶解したも
のなどが好適に用いられる。
Tetrahydrofuran, 2-methyltetrahydrofuran,
γ-Butyrolactone, dioxolane, methylene chloride, triethylphosphny-1-, triethylphosphite, dimethyl sulfate, dimethylformamide, dimethylacetamide, dimethylsulfoxide dedioxane, dimethoxyethane, polyethylene glycol, sulfolane, dichloroethane, chlorobenzene, nitrobenzene Those dissolved in one kind or a mixture of two or more kinds of organic solvents are preferably used.

本発明の電池は1通常上記の正・負極間に電解液を介在
させることにより構成することができるが、この場合正
・負両極間に両極の接触による電流の短絡を防ぐためセ
パレーターを介装することができる。セパレーターとし
ては多孔質でガミ留液を通したり含んだりすることので
きる材料、例えばポリテトラフルオロエチレン、ポリプ
ロピレンやポリエチレンなどの合成樹脂製の不織布、織
布及び網等を使用することができる。
The battery of the present invention can usually be constructed by interposing an electrolyte between the above positive and negative electrodes, but in this case, a separator is interposed between the positive and negative electrodes to prevent short circuit of current due to contact between the two electrodes. can do. As the separator, it is possible to use a material that is porous and can allow the gummy distillate to pass through or contain it, such as nonwoven fabric, woven fabric, or net made of synthetic resin such as polytetrafluoroethylene, polypropylene, or polyethylene.

面して、本発明に係る電池は、上記正・負極及び電解質
、更に必要によりセパレーターを電池構成要素とし、そ
の他電池の種類に応じて用いる電池構成要素を外装缶(
電池容器)に収容したものであるが、この外装缶に電池
構成要素を収容するに際し、金属製電極固定部材をこれ
に突設された突起を正極及び/又は負極に打ち込むこと
により正極及び/又は負極と一体化し、この固定部材を
外装缶に導電状態に固定させることによって、外装缶と
正極及び/又は外装缶と負極とを電気的に接続したもの
である。
On the other hand, the battery according to the present invention includes the above-mentioned positive and negative electrodes, electrolyte, and if necessary, a separator as battery components, and other battery components used depending on the type of battery in an outer can (
When housing the battery components in this exterior can, the positive electrode and/or By integrating with the negative electrode and fixing this fixing member to the outer can in a conductive state, the outer can and the positive electrode and/or the outer can and the negative electrode are electrically connected.

ここで、上記金属g!電極固定部材は、打ち込み用突起
を有し、該突起を電極に打ち込んで電極と一体化するこ
とができ、更にこの場合電極の少なくとも一面側に固定
部材の一部が露出するような構成であればどのような形
状であってもよく、例えば第3図に示すような線状主体
1oの長さ方向両端部をそれぞれ直角に折曲すると共に
、これら折曲突起7.7の先端をそれぞれ尖らせた鏡影
状のものが挙げられる。なお、この固定部材の材質とし
ては、導電性に優れる金属であればよく、特に制限され
るものではないが、特にTi、Ni等の純金属、SUS
  316.SUS  304.SUS 430゜SU
S  447等のステンレス鋼などが好適に用いられ、
電解質、電極、使用電圧、使用方法等を考慮し、腐蝕が
生じないような材質が選ばれる。
Here, the above metal g! The electrode fixing member has a driving protrusion, and can be integrated with the electrode by driving the protrusion into the electrode, and in this case, a part of the fixing member may be exposed on at least one side of the electrode. For example, as shown in FIG. 3, both lengthwise ends of the linear main body 1o are bent at right angles, and the tips of these bent protrusions 7. Examples include mirror-like objects. Note that the material of this fixing member is not particularly limited as long as it is a metal with excellent conductivity, but in particular, pure metals such as Ti and Ni, SUS
316. SUS304. SUS 430゜SU
Stainless steel such as S447 is preferably used,
Materials that will not corrode are selected by considering the electrolyte, electrodes, voltage used, method of use, etc.

上記固定部材を外装缶に固定する方法としては、固定部
材と外装缶とを導電状態に接続し得る方法であればいか
なる方法を採用してもよく、特に制限されるものではな
いが、良好な導電状態を維持することができ、かつ強固
に固着することができることからレーザー溶接法、抵抗
溶接法等の溶接法が好適に採用される。
Any method may be used to fix the fixing member to the outer can as long as it connects the fixing member and the outer can in a conductive state, and is not particularly limited. Welding methods such as laser welding and resistance welding are preferably employed because they can maintain a conductive state and are firmly fixed.

なお、外装缶(電池容器)は通常正極缶と負極缶とから
構成されるが、その形状は特に制限されず、コイン形9
円筒形2箱形、シート形等、各種形状に形成することが
できる。
Note that the outer can (battery container) is usually composed of a positive electrode can and a negative electrode can, but its shape is not particularly limited and may be coin-shaped.
It can be formed into various shapes such as a cylindrical two-box shape and a sheet shape.

次に、本発明電池の好適な実施態様につき第1〜7図を
参照して説明する。
Next, a preferred embodiment of the battery of the present invention will be described with reference to FIGS. 1 to 7.

第1図は、本発明にかかるコイン形電池の一例を示すも
ので、図中1は上端が開口する皿状の外装缶本体(正極
缶)、2はこの外装缶本体1の上端開口部を閉塞する蓋
体(負極缶)であり、外装缶本体1内に正極3と負極4
とがセパレーター5を介して積層された積層形構成の電
極が収容されている・ここで、上記正極3には、その下
面から第3図に示す鏡状の金属製電極固定部材6の突起
7.7が貫通しており、この突起7,7の先端部9.9
が更に折曲して固定部材6と正極3とが一体化している
。更にこの固定部材6は外装缶本体1の底壁内面に導電
状態に固着されている。なお図中8は絶縁パツキンであ
る。
FIG. 1 shows an example of a coin-shaped battery according to the present invention. In the figure, 1 indicates a dish-shaped outer can body (positive electrode can) with an open top end, and 2 indicates the top opening of the outer can body 1. It is a lid body (negative electrode can) that closes, and a positive electrode 3 and a negative electrode 4 are placed inside the outer can body 1.
A stacked electrode is housed in which the positive electrode 3 is stacked with a separator 5 in between. Here, the positive electrode 3 has a protrusion 7 of a mirror-shaped metal electrode fixing member 6 shown in FIG. .7 passes through, and the tips 9.9 of these protrusions 7, 7
is further bent to integrate the fixing member 6 and the positive electrode 3. Furthermore, this fixing member 6 is fixed to the inner surface of the bottom wall of the outer can body 1 in a conductive state. Note that 8 in the figure is an insulating packing.

かかる電池を製造する場合は、まず第2図に示すように
正極3の一面側から固定部材6の突起7.7を打ち込み
貫通させ、正極3の他面から突出した突起7,7の先端
部9.9を折曲し、正極3と固定部材6とを一体化させ
る。なお、上記固定部材6は第3図に示すように線状主
体10の長さ方向両端部をそれぞれ直角に折曲した鋸状
のもので、この折曲突起7,7の先端部は共に尖らせて
あり、容易に電極に打ち込めるようになっている。また
、固定部材6の寸法は、正極3の厚み、面積、集電効率
等に応じて適宜設定される。
When manufacturing such a battery, first, as shown in FIG. 2, the protrusions 7, 7 of the fixing member 6 are driven through from one side of the positive electrode 3, and the tips of the protrusions 7, 7 protruding from the other side of the positive electrode 3 are inserted. 9.9 is bent to integrate the positive electrode 3 and the fixing member 6. As shown in FIG. 3, the fixing member 6 has a serrated shape in which both longitudinal ends of the linear main body 10 are bent at right angles, and the tips of the bent protrusions 7 are both sharp. It is placed so that it can be easily driven into the electrode. Further, the dimensions of the fixing member 6 are appropriately set according to the thickness, area, current collection efficiency, etc. of the positive electrode 3.

次に、上記の正極3と固定部材料6との一体物を第4図
に示すように外装缶本体1内に固定部材6の主体10が
露出している側の面を下にして収容し、固定部材6を外
装缶本体1の底壁内面に導電状態に固着する。この場合
、固定部材6を外装缶本体1に固着する方法としては、
抵抗溶接法が好適に採用される。
Next, as shown in FIG. 4, the integral body of the positive electrode 3 and the fixing part material 6 is housed in the outer can body 1 with the side where the main body 10 of the fixing member 6 is exposed facing down. , the fixing member 6 is fixed to the inner surface of the bottom wall of the outer can body 1 in a conductive state. In this case, the method for fixing the fixing member 6 to the outer can body 1 is as follows:
Resistance welding is preferably employed.

なお、正極3と固定部材6との一体化及びこの正極3と
固定部材6との一体化物を外装缶本体1に固定する方法
は、上記方法に限定されず、例えば第5図に示すように
予め外装缶本体1の底壁内面にレーザー溶接、抵抗溶接
等によって固定部材6を固着しておき、この上から正極
3を押し込んで固定部材6の突起7,7を正極3に貫通
させ、その先端突出部分を折曲するようにしてもよい。
Note that the method for integrating the positive electrode 3 and the fixing member 6 and for fixing the integrated product of the positive electrode 3 and the fixing member 6 to the outer can body 1 is not limited to the above method, and for example, as shown in FIG. The fixing member 6 is fixed in advance to the inner surface of the bottom wall of the outer can body 1 by laser welding, resistance welding, etc., and the positive electrode 3 is pushed in from above so that the protrusions 7, 7 of the fixing member 6 penetrate the positive electrode 3. The tip protruding portion may be bent.

次いで、上記の外装缶本体1内に固着された正極3と固
定部材6との一体物の−Lにセパレーター5及び負極4
を順次積層し、更に外装缶本体】内に電解液を注液した
後、負極4の上から蓋体2を被せると共に蓋体2と外装
缶本体1との間に絶縁性材料よりなるパツキン8を介装
し、加締加工を施すことにより、蓋体2で外装缶本体1
を閉塞し、第1図の電池が構成される。
Next, the separator 5 and the negative electrode 4 are attached to the integrated body -L of the positive electrode 3 and the fixing member 6 fixed in the outer can body 1.
After successively stacking the above and pouring electrolyte into the outer can body, the lid 2 is placed over the negative electrode 4, and a packing 8 made of an insulating material is placed between the lid 2 and the outer can body 1. By interposing the outer can body 1 with the lid body 2 and performing crimping process,
The battery shown in FIG. 1 is constructed.

この電池によれば、正極3と一体化した電極固定部材6
が溶接により強固に外装缶本体1にfi’j着され、こ
のため正極3と外装缶本体1との安定した電気的接続が
上記固定部材6を介して長期に亘り保持される。また、
バネなどを使用しないので外装缶のスペースを有効に利
用し得ると共に、f1!極の部分的剥離及びリード線の
とり出し等の余分な工程を省略することができ、製造工
程が簡略化される。
According to this battery, the electrode fixing member 6 integrated with the positive electrode 3
is firmly attached to the outer can body 1 by welding, and therefore a stable electrical connection between the positive electrode 3 and the outer can body 1 is maintained for a long period of time via the fixing member 6. Also,
Since no springs are used, the space in the outer can can be used effectively, and f1! Extra steps such as partial peeling off of the poles and taking out the lead wires can be omitted, and the manufacturing process is simplified.

なお、」−起倒においては、正極のみを電極固定部材を
用いて外装缶に固定したが、正・負両極又は負極のみを
固定部材を用いて固定するようにしてもよく、また外装
缶の形状、封口方法等も上記例に限定されるものではな
い。更に、上記の第3図に示された鋸状の電極固定部材
6を用いた電極の固定方法も上記例に限定されるもので
はなく、例えば、第6図に示すように外装缶本体1内に
第2図に示した正極3と電極固定部材6との一体物を固
定部材6の突起先端部9,9が露出している側の面を下
にして収容し、固定部材6の突起先端部9,9を外装缶
本体1の底壁内面に導電状態に固着することもできる。
In addition, in the case of raising and lowering, only the positive electrode was fixed to the outer can using an electrode fixing member, but it is also possible to fix both the positive and negative electrodes or only the negative electrode using a fixing member. The shape, sealing method, etc. are not limited to the above examples. Furthermore, the method of fixing an electrode using the saw-shaped electrode fixing member 6 shown in FIG. 3 above is not limited to the above example. For example, as shown in FIG. In this case, the integrated positive electrode 3 and electrode fixing member 6 shown in FIG. The parts 9, 9 can also be fixed to the inner surface of the bottom wall of the outer can body 1 in a conductive manner.

なおこの場合、第7図に示すように、外装缶本体1に正
極コ3を収容し、その上から固定部材6をプレス11に
より押し込み。
In this case, as shown in FIG. 7, the positive electrode 3 is housed in the outer can body 1, and the fixing member 6 is pushed in from above using a press 11.

正極3と固定部材6との一体化及びこの一体物の外装缶
本体1への収容を同時に行なうことができる。更にブレ
ス11と同時に抵抗溶接を行なうようにしてもよい。
The positive electrode 3 and the fixing member 6 can be integrated and the integrated body can be housed in the outer can body 1 at the same time. Furthermore, resistance welding may be performed simultaneously with the brace 11.

2泄R蔓劃釆 以上説明したように1本発明電池は、その使用中に内部
抵抗が急激に増加するようなことのない安定した電極と
外装缶との電気的接続が保持され。
As explained above, the battery of the present invention maintains a stable electrical connection between the electrode and the outer can without causing a sudden increase in internal resistance during use.

更に電池容器(外装缶)の容積をむだなく有効に使用し
得、かつその製造に際しては、簡易な方法により安価に
て製造することができるものである。
Furthermore, the volume of the battery container (exterior can) can be used effectively without wasting it, and it can be manufactured by a simple method at low cost.

以下、実施例及び比較例を示し、本発明を具体的に説明
するが1本発明は下記の実施例に制限されるものではな
い。
EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.

〔実施例〕〔Example〕

1モル/Qのアニリンと2モル/QのHBF。 1 mol/Q aniline and 2 mol/Q HBF.

を含有する水溶液中でSUS  316ステンレス鋼メ
ツシユ上に電解重合法でポリアニリンを重合析出させ、
ステンレス鋼メツシュとポリアニリンとの一体物を得た
。この一体物を蒸留水で充分に洗浄し、室温で1日乾燥
後、−減圧下で2日間乾燥した。次に、この一体物を直
径15閣のポンチで打ち抜き、電池正極とした。なお、
この正極中のポリアニリン膜の重量は約52■であった
。この正極の一面側から5US31GVD金属片を第3
図に示したように鋸状に折り曲げた電極固定部材6の突
起7.7を第2図に示したように貫通させ、先端部9,
9を折り曲げて正極と固定部材との一体物を作成した0
次いで第4図に示したように直径20III11の外装
缶1内に上記一体物を静置し、正極3から露出している
固定部材6の突起先端部9,9から抵抗溶接E、Eを施
し、正極3を固定部材6を介して外装缶1内に固定した
Polyaniline is polymerized and deposited on SUS 316 stainless steel mesh by electrolytic polymerization in an aqueous solution containing
An integrated product of stainless steel mesh and polyaniline was obtained. This integrated product was thoroughly washed with distilled water, dried for one day at room temperature, and then dried for two days under reduced pressure. Next, this one piece was punched out using a punch with a diameter of 15 mm to form a battery positive electrode. In addition,
The weight of the polyaniline film in this positive electrode was about 52 cm. Place the third 5US31GVD metal piece from one side of this positive electrode.
As shown in the figure, the projections 7 and 7 of the electrode fixing member 6 bent into a saw shape are penetrated as shown in FIG.
9 was bent to create an integrated body of the positive electrode and the fixing member.
Next, as shown in FIG. 4, the above-mentioned integrated body was placed in an outer can 1 having a diameter of 20III11, and resistance welding E, E was applied from the protrusion tips 9, 9 of the fixing member 6 exposed from the positive electrode 3. , the positive electrode 3 was fixed inside the outer can 1 via the fixing member 6.

一方、負極としては、直径15ai、厚さ0.21のア
ルミ2911円板の一面に円板状のリチウムを圧着して
形成したリチウム・アルミニウム合金を使用し、この負
極をセパレーターを介して上記正極上に積層し、電解液
としてL i B F、を含むプロピレンカーボネート
とジメトキシエタンとの混合溶媒を使用して第1図に示
した厚さ1.6閣、直径20mのコイン型電池を作製し
た。
On the other hand, as the negative electrode, we used a lithium-aluminum alloy formed by pressing a disk-shaped lithium onto one surface of an aluminum 2911 disk with a diameter of 15 ai and a thickness of 0.21. A coin type battery with a thickness of 1.6 mm and a diameter of 20 m as shown in Fig. 1 was fabricated using a mixed solvent of propylene carbonate and dimethoxyethane containing L i B F as an electrolyte. .

次に、上記電池に対して、1mAの定電流にて3.0■
まで充電し、1mAの定電流にて2.OVまで放電した
ところ、放電容量は3.03mAhであった。更に同様
の充放電を繰り返したところ、100回目の放電容量は
2.95mAhであった。
Next, apply 3.0μ to the above battery at a constant current of 1mA.
2. Charge to 1 mA constant current. When discharged to OV, the discharge capacity was 3.03 mAh. When the same charging and discharging was repeated, the 100th discharge capacity was 2.95 mAh.

(比較例1〕 上記実施例と同様にして作製した正極を固定部材を使用
せずに第8図に示したように、正極3の径方向両端部に
形成したステンレスメツシュ露出部分12.12を外装
缶本体1に抵抗溶接E、Eした。なお、正極中のポリア
ニリン膜の重量は実施例のものより内部のステンレスメ
ツシュを露出させた分だけ少なく、約46.であった。
(Comparative Example 1) A positive electrode produced in the same manner as in the above example was used without using a fixing member, and as shown in FIG. were resistance welded E and E to the outer can body 1.The weight of the polyaniline film in the positive electrode was about 46 mm, which was less than that of the example due to the exposure of the internal stainless steel mesh.

次に、負極、セパレーター、電解液等上記実施例と同様
のものを使用し、同様の方法により同形状の電池を作製
した。
Next, a battery of the same shape was produced by the same method using the same negative electrode, separator, electrolyte, etc. as in the above example.

上記電池について、実施例と同様の充放電試験を行なっ
たところ、1回目の放電容量は2.76mAh、100
回目の放電容量は2.61mAhであり、正極活物質の
量が少ない分んだけ放電容量が小さかった。また、この
電池はその製造課程において、正極のポリアニリン−ス
テンレスメツシュ一体物の露出部分を形成する工程は、
ステンレスメツシュが十分に露出していないと外装缶へ
の溶接が不可となるため、細心の注意を要し、非常に手
間のかかるものであった。
When the above battery was subjected to the same charging and discharging test as in the example, the first discharge capacity was 2.76mAh, 100mAh.
The discharge capacity for the second time was 2.61 mAh, and the discharge capacity was small as the amount of positive electrode active material was small. In addition, in the manufacturing process of this battery, the step of forming the exposed portion of the polyaniline-stainless mesh integral part of the positive electrode is as follows:
If the stainless steel mesh is not sufficiently exposed, welding to the outer can is impossible, which requires careful attention and is extremely time-consuming.

〔比較例2〕 上記実施例と同様にして作製した正極を電極固定部材を
使用せずに外装缶内にスポット溶接された直径15mの
SUS  3161f11のステンレス鋼円板に圧着す
ることにより外装缶に固定した以外は実施例と同様にし
てコイン形電池を作製した。
[Comparative Example 2] A positive electrode produced in the same manner as in the above example was attached to an outer can by crimping it to a 15 m diameter SUS 3161F11 stainless steel disc spot-welded inside the outer can without using an electrode fixing member. A coin-shaped battery was produced in the same manner as in the example except that it was fixed.

上記電池について、実施例と同様の充放電試験を行なっ
たところ、1回目の放電容量は3.01mAであった。
When the above battery was subjected to the same charging and discharging test as in the example, the first discharge capacity was 3.01 mA.

ところがサイクル数8回目から放電時に電気的ノイズが
入り、以後内部抵抗が増大し、サイクル数20回目で充
放電ができなくなった。
However, after the 8th cycle, electrical noise occurred during discharging, and the internal resistance increased thereafter, making charging and discharging impossible at the 20th cycle.

以上の結果より、本発明の電池は、簡易な方法により製
造することができ、かつ(i頼性の高い高性能なもので
あることが確認された。
From the above results, it was confirmed that the battery of the present invention can be manufactured by a simple method, and is highly reliable and high performance.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の一実施例に係る電池を示す断面図、
第2図A及びBは、同電池を構成する正極部分を示し、
A図は平面図、B図は断面図、第3図A及びBは同電池
を構成する電極固定部材を示し、A図は平面図、B図は
正面図、第4図A及びBは第2図に示した正極部を外装
缶に収容したところを示し、A図は平面図、B図は断面
図、第5図A及びBは外装缶に電極固定部材を固定した
状態を示し、A図は平面図、B図は断面図、第6図は正
極部を外装缶に収容した他の状態を示す断面図、第7図
は同状態に正極部を外装缶に収容する方法を説明する断
面図、第8図A及びBは・比較例1の電池の正極部分を
示し、A図は平面図、B図は断面図、第9〜11図はそ
れぞれ、異なる従来例を示し、第9,11図は断面図、
第10図は部分断面正面図である。 1・・・外装缶本体   2・・・蓋体3・・・正極 
     4・・・負極5・・・セパレーター  6・
・・電極固定部材7・・・突起      8・・・パ
ツキン出願人  株式会社 ブリデス1−ン 代理人  弁理士  小 島 隆 司 第5図 第9図 第10図 第11図
FIG. 1 is a sectional view showing a battery according to an embodiment of the present invention;
Figures 2A and B show the positive electrode part constituting the battery,
Figure A is a plan view, Figure B is a sectional view, Figures 3A and B show the electrode fixing member that constitutes the battery, Figure A is a plan view, Figure B is a front view, and Figures 4A and B are sectional views. Figure 2 shows the positive electrode part shown in the outer can housed, Figure A is a plan view, Figure B is a sectional view, Figures A and B show the state in which the electrode fixing member is fixed to the outer can, and Figure A is a plan view. The figure is a plan view, Figure B is a cross-sectional view, Figure 6 is a cross-sectional view showing another state in which the positive electrode part is housed in the outer can, and Figure 7 explains how to house the positive electrode part in the outer can in the same state. 8A and 8B show the positive electrode part of the battery of Comparative Example 1, A is a plan view, B is a sectional view, and FIGS. 9 to 11 respectively show different conventional examples. , 11 is a cross-sectional view,
FIG. 10 is a partially sectional front view. 1... Exterior can body 2... Lid body 3... Positive electrode
4... Negative electrode 5... Separator 6.
...Electrode fixing member 7...Protrusion 8...Patsukin Applicant Brides 1 Co., Ltd. Agent Patent attorney Takashi Kojima Figure 5 Figure 9 Figure 10 Figure 11

Claims (1)

【特許請求の範囲】[Claims] 1、正極、負極及び電解質を具備し、これら電池構成部
材を外装缶内に収容してなる電池において、上記正極及
び/又は負極に金属製電極固定部材をこれに突設された
突起を打ち込むことにより一体化し、この固定部材を外
装缶に導電状態に固定して、該正極及び/又は負極を上
記固定部材を介して上記外装缶に電気的に接続したこと
を特徴とする電池。
1. In a battery comprising a positive electrode, a negative electrode, and an electrolyte, and in which these battery components are housed in an exterior can, driving a metal electrode fixing member into the positive electrode and/or negative electrode with a protrusion protruding from the metal electrode fixing member. A battery characterized in that the fixing member is fixed to the outer can in a conductive state, and the positive electrode and/or the negative electrode are electrically connected to the outer can via the fixing member.
JP63168144A 1988-07-06 1988-07-06 Battery Pending JPH0218860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63168144A JPH0218860A (en) 1988-07-06 1988-07-06 Battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63168144A JPH0218860A (en) 1988-07-06 1988-07-06 Battery

Publications (1)

Publication Number Publication Date
JPH0218860A true JPH0218860A (en) 1990-01-23

Family

ID=15862646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63168144A Pending JPH0218860A (en) 1988-07-06 1988-07-06 Battery

Country Status (1)

Country Link
JP (1) JPH0218860A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000306587A (en) * 1999-04-21 2000-11-02 Fujikoo:Kk Felt-like conductive material
JP2001085016A (en) * 1999-09-09 2001-03-30 Sony Corp Non-aqueous electrolyte battery
JP2004022418A (en) * 2002-06-18 2004-01-22 Ishikawajima Harima Heavy Ind Co Ltd Battery, and its electrode core member, positive electrode and negative electrode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000306587A (en) * 1999-04-21 2000-11-02 Fujikoo:Kk Felt-like conductive material
JP2001085016A (en) * 1999-09-09 2001-03-30 Sony Corp Non-aqueous electrolyte battery
JP2004022418A (en) * 2002-06-18 2004-01-22 Ishikawajima Harima Heavy Ind Co Ltd Battery, and its electrode core member, positive electrode and negative electrode
JP4576785B2 (en) * 2002-06-18 2010-11-10 株式会社Ihi Battery and its electrode core material, positive electrode and negative electrode

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