JPH0346765A - Flat type battery - Google Patents
Flat type batteryInfo
- Publication number
- JPH0346765A JPH0346765A JP18338189A JP18338189A JPH0346765A JP H0346765 A JPH0346765 A JP H0346765A JP 18338189 A JP18338189 A JP 18338189A JP 18338189 A JP18338189 A JP 18338189A JP H0346765 A JPH0346765 A JP H0346765A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- negative electrode
- battery
- thickness
- plate
- 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
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 229960004643 cupric oxide Drugs 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 230000000153 supplemental effect Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
イ、産業上の利用分野
本発明は放電反応により膨張する正極を備える偏平型電
池の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an improvement in a flat battery equipped with a positive electrode that expands due to a discharge reaction.
口、従来の技術
この種電池の例としては、正極活物質にＣｕＯ１Ｆ ｅ
Ｓ を或いはＢ、０１等を用い、負極活物質にリチウ
ムを用いる非水電解液電池が埜げられる。一般に非水電
解液電池においては、電池組立時の高い開路ｆ＝ ｌ’
＋Ｅの低減化、安定化のために電池組立工程後に一定量
の予備放電をして、正極活物質の一部を還元する手法が
広く用いられている。As an example of a conventional battery of this kind, CuO1F e is used as the positive electrode active material.
A non-aqueous electrolyte battery using S, B, 01, etc. and lithium as a negative electrode active material can be used. Generally, in non-aqueous electrolyte batteries, there is a high open circuit f = l' during battery assembly.
In order to reduce and stabilize +E, a method is widely used in which a certain amount of preliminary discharge is performed after the battery assembly process to reduce a portion of the positive electrode active material.
しかし、この手法は、一般的に、一定量の時間を要し、
又、電池出荷までの工数が増えることから、コスト的に
大きな問題となっていた。However, this technique generally requires a certain amount of time and
Furthermore, since the number of man-hours required to ship the battery increases, this poses a major problem in terms of cost.
この対処法として、あらかじめ、正極の側面に、正極と
放電反応を起こし得る負極活物質層を設置させ、電池祁
立時に正極の一部を放電、還元させる方法が与えられる
が、電池の封口工程前に正極に形状変形が生じるため、
電池師と正極との接触不良、電池の総高増加等の新たな
問題を有していた。One way to deal with this problem is to install a negative electrode active material layer that can cause a discharge reaction with the positive electrode on the side of the positive electrode in advance, and then discharge and reduce a part of the positive electrode when the battery is discharged. Because shape deformation occurs in the positive electrode before
There were new problems such as poor contact between the battery and the positive electrode and an increase in the total height of the battery.
（ハ） 本発明が解決しようとする課題本発明は従来コ
スト面での問題点であった予備放電工程の省略を可能と
すると共に、従来の対処法の問題点であった接触不良に
起因する作動電圧の低下、放電容量の低下、等の問題点
を改良することを目的とするものである。(c) Problems to be solved by the present invention The present invention makes it possible to omit the pre-discharge step, which was a problem in terms of cost in the past, and also eliminates the problem caused by poor contact, which was a problem in conventional solutions. The purpose is to improve problems such as a decrease in operating voltage and a decrease in discharge capacity.
（ニ）課題を解決するための手段
本発明は１極自身に凹部或いは開孔部を形設し、この凹
部或いは開孔部に、電解液の注入により対向する正極と
反応する補助の負極部材を配置したことを特徴とするも
のである。(D) Means for Solving the Problems The present invention provides a recess or opening formed in one electrode itself, and an auxiliary negative electrode member that reacts with the opposing positive electrode by injecting an electrolyte into the recess or opening. It is characterized by the arrangement of.
（ホ）作用
正極に、これと放電反応を起こし得るｆＬ極活物質を接
触させ、電解液注入時にこれを放電させる手法は、電池
の組立直後の高い開路電圧を低下させるのに有効である
。補助の負極活物質を正極の側面に設置した場合、正極
の部分的な膨張により、正極に平坦性がなくなったり、
或いは正極が片面的に膨張するため湾曲変形を起こすな
ど、電池缶と正極との接触不良が生じ、その結果、内部
抵抗の増大、作動電圧の低下をきたしていた。(e) A method of bringing the working positive electrode into contact with an fL electrode active material capable of causing a discharge reaction and discharging it when the electrolyte is injected is effective in reducing the high open circuit voltage immediately after battery assembly. When an auxiliary negative electrode active material is installed on the side of the positive electrode, the positive electrode may lose its flatness due to partial expansion of the positive electrode.
Alternatively, the positive electrode expands on one side, causing bending deformation, resulting in poor contact between the battery can and the positive electrode, resulting in an increase in internal resistance and a decrease in operating voltage.
本発明電池の場合、電池内部に放電による正極の祉；張
を吸収し得る空間部を形成しているので、＠、ａの厚み
方向への正極の変形は生じず、電池針との接触不良を防
止することが可能となる。In the case of the battery of the present invention, since a space is formed inside the battery that can absorb the tension of the positive electrode due to discharge, deformation of the positive electrode in the thickness direction of @, a does not occur, and poor contact with the battery needle occurs. This makes it possible to prevent
（へ）実施例 以下本発明の実施例について図面に基づき詳述する。(f) Example Embodiments of the present invention will be described in detail below with reference to the drawings.
実施例１
第１図において、１は正極板であり、市販特級の酸化第
二銅８３ｗｔ％に導電剤としての黒鉛を１０ｗｔ％、結
着剤としてのフッ素樹・脂粉末をＪ Ｗ ｉ ％加えて
この粉体を約２ｔｏｎ／ｃｍ”の圧力で加圧成形Ｌ、Ｉ
蓼すＱ、５ｍｍ、外径８．８１１１ｍ、内径２．５ｍ１
ｌｌの中心開孔部２を形成した後、この成形体を２００
〜３００℃の温度で真空熱処理したものであって、正極
缶４の内底面に圧接されている。この正極板の開孔部内
周壁には厚さ０．３ｍｍ、幅０．５ｍ１ｌ＋、長さ８閣
の補助負極部材としてのリボン状リチウム板３が設置さ
れている。Example 1 In FIG. 1, 1 is a positive electrode plate, in which 10 wt % of graphite as a conductive agent and J Wi % of fluororesin/resin powder as a binder were added to 83 wt % of commercially available special grade cupric oxide. Pressure mold the powder L and I at a pressure of approximately 2 ton/cm".
Tase Q, 5mm, outer diameter 8.8111m, inner diameter 2.5m1
After forming the center opening 2 of 200 mm, the molded body was
It is vacuum heat-treated at a temperature of ~300° C. and is pressed into contact with the inner bottom surface of the positive electrode can 4 . A ribbon-shaped lithium plate 3 as an auxiliary negative electrode member having a thickness of 0.3 mm, a width of 0.5 ml+, and a length of 8 mm is installed on the inner circumferential wall of the opening of this positive electrode plate.
５は主ｆｉ極であり、厚さ１．０ｆｆｌｆｆｉ、長さ６
．５鵬のリチウム板からなりステンレス製の負極缶６に
圧着されている。７は正、負極缶を絶縁する絶縁ノく・
７キングである。セパレータ８は厚さＯ，１ｍ１ｌｌ、
径９画φのポリプロピレン不織布からなり、又、電解液
としてはプロピレンカーボネイトと１．２ジメトキシエ
タンの混合溶媒に過塩素酸リチウムを１モル％溶解した
ものを用い、前述の開孔部２にリチウム板３を設置した
正ｔｆ１１、セパレータ７、負極５の順に電池正極缶内
に装着した後、減圧禽浸法にて電解液を注入後、封口し
て本発明電池Ａを作製した。5 is the main fi pole, thickness 1.0fffffi, length 6
．． It consists of a lithium plate of 500 mm and is crimped onto a stainless steel negative electrode can 6. 7 is an insulating hole that insulates the positive and negative electrode cans.
It is 7 kings. The separator 8 has a thickness of O, 1ml,
It is made of a polypropylene nonwoven fabric with a diameter of 9 strokes, and as an electrolyte, 1 mol% of lithium perchlorate is dissolved in a mixed solvent of propylene carbonate and 1.2 dimethoxyethane. After the positive TF11 with the plate 3 installed, the separator 7, and the negative electrode 5 were installed in a battery positive electrode can in this order, an electrolytic solution was injected by a vacuum immersion method, and the container was sealed to prepare a battery A of the present invention.
実施例２
第２図に示すように、厚み０．５１１１１１１、外径８
．８ｍ１１１の正極板１１の片面中央部に、深さ０．２
ｍｏ＋、径４．０鵬の円形の四部１２を形成し、この凹
部内に、補助負極部材としての厚さ０．１ｍｍ、径４．
Ｏｍｍのリチウム箔１３を設置し、これを下面にして
、′ξ池缶内に設置、池の構成、組立法としては実施例
１と全く同様の本発明電池Ｂを作製した。Example 2 As shown in Fig. 2, thickness 0.5111111, outer diameter 8
．． At the center of one side of the 8m111 positive electrode plate 11, a depth of 0.2
A circular four part 12 with a diameter of 4.0mm is formed, and a auxiliary negative electrode member with a thickness of 0.1mm and a diameter of 4.0mm is placed in this recess.
A lithium foil 13 having a thickness of 0.0 mm was placed, and the battery B of the present invention was prepared in the same manner as in Example 1, with the lithium foil 13 facing downward and placed in a pond can.
実施例３
第３図に示すように、上記実施（’Ａ ２と同形状の正
極１１を、凹部１２を上面（負極対向面）にしてその凹
部内にリチウム箔１３を設置し、他の構成、組を法とし
ては、実施例１と全く同様の本発明電池Ｃを作製した。Example 3 As shown in FIG. 3, a positive electrode 11 having the same shape as in the above embodiment ('A2) was placed with a lithium foil 13 inside the recess with the recess 12 facing the upper surface (negative electrode facing surface), and other configurations were used. A battery C of the present invention, which is completely the same as that of Example 1, was prepared using the same method as that of Example 1.
次に比較のため、第４図に示すように、厚さＯ１６Ｉｎ
ｍ、外径８．８Ｍの正極板２１と、電池缶底との間に、
厚さ０．４ｍｆｆ１、径８．８ｍｍのリチウム箔２３を
設置した構成の電池りを作製した。尚、他の構成、組立
法に関しては実施例１と同様である。Next, for comparison, as shown in FIG.
m, between the positive electrode plate 21 with an outer diameter of 8.8M and the bottom of the battery can,
A battery was prepared in which a lithium foil 23 with a thickness of 0.4 mff1 and a diameter of 8.8 mm was installed. Note that other configurations and assembly methods are the same as in the first embodiment.
この様にして得られた各電池の温度２５℃における負荷
抵抗３０にΩでの放電特性の比較を第５図に示す。第５
図より、本発明電池は比較電池に比して優れた放電特性
を有していることがわかる。FIG. 5 shows a comparison of the discharge characteristics of each of the batteries obtained in this way at a temperature of 25° C. and a load resistance of 30 Ω. Fifth
The figure shows that the battery of the present invention has superior discharge characteristics compared to the comparative battery.
この理由について以下に述べる。The reason for this will be discussed below.
第１〜４図の（ｂ）は電解液を注入し、正極を放電させ
た後封口した電池の内部の状態を示し、比較電池りの場
合、第４図（ｂ）に示す如く、注液時に正極板の下部全
面が急激に放電し、多孔性になり、表面積ら増大するが
、この時正極の膨張は厚み方向以外に径方向にもおよぶ
。正極板の周端は負極の絶縁パッキングの支持台も兼ね
ており、その結果、正極形状は図の如く湾曲し、特に正
極中央部付近での電池針との接触が悪くなる。Figures 1 to 4 (b) show the internal state of a battery sealed after injecting electrolyte and discharging the positive electrode. At times, the entire lower part of the positive electrode plate is rapidly discharged, becomes porous, and increases in surface area, but at this time, the positive electrode expands not only in the thickness direction but also in the radial direction. The peripheral edge of the positive electrode plate also serves as a support for the insulating packing of the negative electrode, and as a result, the shape of the positive electrode is curved as shown in the figure, making contact with the battery needle particularly poor near the center of the positive electrode.
を池の組立時に、この様な接触不良が発生すると、電池
の主放電時は、更に負極方向に正極が膨張し、電池缶と
の接触不良が助長される。そして、Ｓｉ、極面まで膨張
が進行し、今度は逆に電池缶底部の方向・＼膨張が始ま
るまで内部抵抗は増大し、作動電圧の低下が生じる。If such a poor contact occurs during the assembly of the battery, the positive electrode will further expand in the direction of the negative electrode during main discharge of the battery, which will exacerbate the poor contact with the battery can. Then, the expansion of Si progresses to the pole surface, and the internal resistance increases until expansion begins in the opposite direction toward the bottom of the battery can, causing a decrease in the operating voltage.
これに対し、本発明電池Ａの場合、第１図（ｂ）に示す
如く、注液により、正極板の開孔部内側面部が放電され
、正極は径方向（中心部方向）にのみ膨張し、その膨張
は、開孔部にて吸収されるので、正極の１ゾみ方向には
形状変化はなく電池師との接触不良は発生しない。On the other hand, in the case of the battery A of the present invention, as shown in FIG. 1(b), the inner surface of the opening in the positive electrode plate is discharged due to the injection, and the positive electrode expands only in the radial direction (towards the center). Since the expansion is absorbed by the opening, there is no change in the shape of the positive electrode in one direction, and no contact failure with the battery cell occurs.
又、本発明電池Ｂ、Ｃの場合、正極の膨張は第２図の（
１））、第３図の（ｂ）に示す如く、あらかじめ正極に
形成された凹部の空間に吸収されるので′な池内との接
触不良は防止される。In addition, in the case of batteries B and C of the present invention, the expansion of the positive electrode is shown in Fig. 2 (
1)) As shown in FIG. 3(b), since the positive electrode is absorbed into the space of the recess formed in advance in the positive electrode, poor contact with the inside of the pond is prevented.
以上の如く、本発明電池の構成は、正極の放電による膨
張を吸収し得る空間部を設けているので、止極変彩によ
る正極と電池缶との接触不良を防止することが可能であ
る上、例えば、実施例１．２に示す電池Ａ、Ｂの構成に
おいては、電池の主放電時に局部的に液不足を生じ易い
１を極面中央部が多孔性であり含液性が高いため、液不
足による特性劣化を防止でき、又、実施例３に示す電池
Ｃの構成においては電池缶との接触面に、放電により還
元生成物である金属が生成してより接触度を高めること
ができる等、二次的な効果も期待できる。As described above, since the structure of the battery of the present invention has a space that can absorb the expansion of the positive electrode due to discharge, it is possible to prevent poor contact between the positive electrode and the battery can due to stop-pole discoloration. For example, in the configurations of batteries A and B shown in Example 1.2, 1, which tends to cause local liquid shortage during the main discharge of the battery, is porous at the center of the pole surface and has high liquid retentivity. Deterioration of characteristics due to lack of liquid can be prevented, and in the configuration of battery C shown in Example 3, metal, which is a reduction product, is generated on the contact surface with the battery can due to discharge, and the degree of contact can be further increased. Secondary effects such as these can also be expected.
（ト）発明の効果
り述した如く、本発明電池は放電反応により膨張する正
極に形設した凹部或いは開口部に正極と放電反応を起こ
し得る補助の負極部材を設置し。(G) Effects of the Invention As described above, in the battery of the present invention, an auxiliary negative electrode member capable of causing a discharge reaction with the positive electrode is installed in the recess or opening formed in the positive electrode that expands due to the discharge reaction.
電解液注入時にその負極活物質と正極とを放電させ、正
極の一部を還元することを特徴とするものであり、かつ
還元物生成による正極の膨張を前記空間部内にて吸収し
得ることを特徴とするものであるからして、比較電池に
おける正極と電池缶との接触不良に伴なう内部抵抗の増
大、作動電圧の低下、放電容量の劣化の防止に優れた効
果を発揮しつつ、比較電池のコスト面での課題点であっ
た予備放電工程の省略を可能ならしめるものであ２、そ
の工業的価値は橿めて大なるものである。It is characterized in that the negative electrode active material and the positive electrode are discharged when the electrolytic solution is injected, and a part of the positive electrode is reduced, and that the expansion of the positive electrode due to the production of reduced products can be absorbed within the space. Because of its characteristics, it is highly effective in preventing increases in internal resistance, decreases in operating voltage, and deterioration in discharge capacity due to poor contact between the positive electrode and battery can in comparative batteries. This makes it possible to omit the pre-discharge step, which was a problem in terms of cost for comparative batteries2, and its industrial value is therefore extremely great.
第１図（Ｒ）及び（ｂ）は本発明電池への組立時の構成
図及び封口時の状態を示す図、第２図（ａ）及び（１〕
）は“本発明電池Ｂの組立時のＮＡ我及び封口時の状態
を示す図、第３図（ａ）及び（ｂ）は本発明電池Ｃの組
立時の構成及び封口時の状態を示す図、第４図（ａ）及
び（ｂ）は比較電池りの組立時の構成及び封口時の状態
を示す図、第５図は本発明電池と比較電池の放電特性比
較図を夫々示す。
１．１１・・・正極板、２・・・開孔部、３．１３・・
・補助負極部材、４・・・正極缶、５・・・主負罹、６
・・・負極缶、７・・・絶縁バフキング、８・・・セパ
レータ、１２・・・凹部、Ａ、Ｂ、Ｃ・・・本発明電池
、Ｄ・・・比較電池。Figures 1 (R) and (b) are diagrams showing the configuration when assembled into the battery of the present invention and the state at the time of sealing, Figures 2 (a) and (1)
3) is a diagram showing the configuration of battery B of the present invention when it is assembled and the state when it is sealed. Figures 3 (a) and (b) are diagrams showing the configuration of battery C of the present invention when it is assembled and the state when it is sealed , FIGS. 4(a) and 4(b) are diagrams showing the configuration of a comparative battery when assembled and its state when sealed, and FIG. 5 is a diagram showing a comparison of the discharge characteristics of the battery of the present invention and the comparative battery.1. 11... Positive electrode plate, 2... Opening part, 3.13...
- Auxiliary negative electrode member, 4... Positive electrode can, 5... Main negative electrode member, 6
. . . Negative electrode can, 7 . Insulating buffing, 8 .
Claims (1)
る正極と、負極缶の内底面に配設された主負極と、正、
負極缶を絶縁する絶縁パッキングと、正負極間に介挿さ
れたセパレータと、前記正極に形設した凹部或いは開孔
部に位置し電解液の注入により対向する正極と反応する
補助の負極部材とを備えた偏平型電池。(1) A positive electrode disposed on the inner bottom surface of the positive electrode can that expands due to a discharge reaction, a main negative electrode disposed on the inner bottom surface of the negative electrode can, a positive electrode,
an insulating packing that insulates the negative electrode can; a separator inserted between the positive and negative electrodes; and an auxiliary negative electrode member that is located in a recess or opening formed in the positive electrode and reacts with the opposing positive electrode when an electrolyte is injected. A flat battery with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18338189A JP2735890B2 (en) | 1989-07-14 | 1989-07-14 | Flat battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18338189A JP2735890B2 (en) | 1989-07-14 | 1989-07-14 | Flat battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0346765A true JPH0346765A (en) | 1991-02-28 |
| JP2735890B2 JP2735890B2 (en) | 1998-04-02 |
Family
ID=16134775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18338189A Expired - Fee Related JP2735890B2 (en) | 1989-07-14 | 1989-07-14 | Flat battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2735890B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6858282B2 (en) * | 1999-12-17 | 2005-02-22 | Henkel Corporation | Textured graphite sheet infused with a sealant |
-
1989
- 1989-07-14 JP JP18338189A patent/JP2735890B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6858282B2 (en) * | 1999-12-17 | 2005-02-22 | Henkel Corporation | Textured graphite sheet infused with a sealant |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2735890B2 (en) | 1998-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0346765A (en) | Flat type battery | |
| JP2548464B2 (en) | Non-aqueous electrolyte battery | |
| JPS618852A (en) | non-aqueous electrolyte battery | |
| JP3131145U (en) | Button-type alkaline battery | |
| JPH0631646Y2 (en) | Flat type battery | |
| JP2002117814A (en) | Square-shaped sheath can and battery using this | |
| KR100354250B1 (en) | Electrode of sealed battery | |
| JPH067493B2 (en) | Flat battery | |
| JPS6337567A (en) | Alkaline cell | |
| JPH02170356A (en) | Cylindrical nonaqueous electrolyte battery | |
| KR100563038B1 (en) | Sealed battery | |
| JPS5831319Y2 (en) | cylindrical battery | |
| JPH09129198A (en) | Flat organic electrolyte battery | |
| JPS5937653A (en) | Nonaqueous solvent battery | |
| JP3053995B2 (en) | Sodium-sulfur battery | |
| JP2006196292A (en) | Nonaqueous electrolyte secondary battery and manufacturing method thereof | |
| JPS6145568A (en) | Nonaqueous electrolyte battery | |
| JPS632267A (en) | Manufacture of coin type battery | |
| JPH03266356A (en) | Manufacture of organic electrolytic battery | |
| JP2995431B2 (en) | Organic electrolyte battery | |
| JPH02109268A (en) | flat battery | |
| JPH0265068A (en) | Flat organic electrolyte battery | |
| JPS6247348B2 (en) | ||
| JPS62140373A (en) | organic electrolyte battery | |
| JPH0689718A (en) | Lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |