JPH04342959A - Battery with organic electrolyte - Google Patents
Battery with organic electrolyteInfo
- Publication number
- JPH04342959A JPH04342959A JP3116006A JP11600691A JPH04342959A JP H04342959 A JPH04342959 A JP H04342959A JP 3116006 A JP3116006 A JP 3116006A JP 11600691 A JP11600691 A JP 11600691A JP H04342959 A JPH04342959 A JP H04342959A
- Authority
- JP
- Japan
- Prior art keywords
- electrode body
- electrode
- separator
- battery
- organic 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.)
- Granted
Links
- 239000005486 organic electrolyte Substances 0.000 title claims description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 6
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 5
- 239000002390 adhesive tape Substances 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000011149 active material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical compound O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920001083 polybutene Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 6
- -1 polypropylene Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012982 microporous membrane Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002474 experimental method Methods 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
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は有機電解液電池に関し、
特に負極と正極の相互間にセパレータを介在させ、渦巻
状に構成した電極体の固定用粘着テープを改良した有機
電解液電池に関する。[Industrial Application Field] The present invention relates to an organic electrolyte battery.
In particular, the present invention relates to an organic electrolyte battery in which a separator is interposed between a negative electrode and a positive electrode, and an adhesive tape for fixing a spiral electrode body is improved.
【0002】0002
【従来の技術】近年、有機電解液電池はエネルギー密度
が高く、保存性,耐漏液性などの信頼性に優れ、また小
形化,軽量化が可能なことから、各種電子機器の主電源
やバックアップ電源として使用されている。[Prior Art] In recent years, organic electrolyte batteries have been used as main power sources and backup power sources for various electronic devices because they have high energy density, excellent reliability such as storage stability and leakage resistance, and can be made smaller and lighter. Used as a power source.
【0003】従来、この種の電池の電極体構成後の固定
方法は次の2通りあり、第1の方法は図2に示すように
、電極体20に固定用粘着テープを設けない方法である
。第2の方法は図3に示すように、電極体20を電解液
に溶解しない粘着テープ6で固定する方法である。15
aは最外周セパレータ、15bは次外周セパレータであ
る。[0003] Conventionally, there are two methods for fixing this type of battery after the electrode body has been constructed. The first method, as shown in FIG. 2, is a method in which no adhesive tape for fixing is provided on the electrode body 20. . The second method, as shown in FIG. 3, is to fix the electrode body 20 with an adhesive tape 6 that does not dissolve in the electrolyte. 15
a is the outermost circumferential separator, and 15b is the next outer circumferential separator.
【0004】0004
【発明が解決しようとする課題】従来の構成では、まず
、第1の方法の場合、図2に示すように電極体20は粘
着テープで固定されていないため、負極ケース(図示し
ていない)に挿入する際、負極,正極,セパレータ(各
々図示していない)各々が種々のずれた状態で、負極ケ
ースに挿入され、内部短絡を起こす危険性が大であった
。又、第2の方法で構成した場合、図3に示すように電
極体20は粘着テープ6で固定され、緊縛度を保ったま
ま製品化されるため、電池放電途中で正極合剤(図示し
ていない)の膨張等により、正極合剤端面の芯材(図示
していない)の一部がセパレータを破り、内部短絡を起
こす危険性が大であった。[Problems to be Solved by the Invention] In the conventional configuration, first, in the case of the first method, as shown in FIG. When inserted into the negative electrode case, the negative electrode, positive electrode, and separator (not shown) were inserted into the negative electrode case in various misaligned states, and there was a great risk of causing an internal short circuit. In addition, in the case of the second method, the electrode body 20 is fixed with adhesive tape 6 as shown in FIG. 3, and the product is manufactured with the degree of binding maintained. There was a great risk that a part of the core material (not shown) on the end face of the positive electrode mixture would break through the separator due to expansion of the material (not shown), causing an internal short circuit.
【0005】本発明はこのような問題点を解決するもの
で、内部短絡を防止して安全性の向上を図った有機電解
液電池を提供することを目的とする。[0005] The present invention solves these problems and aims to provide an organic electrolyte battery which prevents internal short circuits and improves safety.
【0006】[0006]
【課題を解決するための手段】これらの問題点を解決す
るために本発明の有機電解液電池は、1つの方法として
電極体の固定用粘着テープの粘着剤に電解液に可溶性の
粘着剤を使用したものである。他の方法としては、電極
体を構成した後、電解液に可溶性のコーティング剤で電
極体をコーティングするものである。[Means for Solving the Problems] In order to solve these problems, in the organic electrolyte battery of the present invention, one method is to add an adhesive soluble in the electrolyte to the adhesive tape for fixing the electrode body. This is what I used. Another method is to coat the electrode body with a coating agent soluble in an electrolytic solution after constructing the electrode body.
【0007】[0007]
【作用】この構成により本発明の有機電解液電池は、電
極体は粘着テープで固定、またはコーティング剤でコー
ティングされているため、負極ケースに挿入する際、負
極,正極,セパレータ各々はずれる事なくスムーズに挿
入され、また、電解液注入後は電極体の固定用粘着テー
プはその粘着剤、またはコーティング剤はそれ自体が電
解液中に溶解し、電極体の緊縛度を解放するため、電池
放電中に正極合剤の膨張等により正極合剤端面の芯材の
一部がセパレータを破り、内部短絡を起こすという問題
を解消することとなる。[Operation] With this structure, the electrode body of the organic electrolyte battery of the present invention is fixed with adhesive tape or coated with a coating agent, so when inserted into the negative electrode case, the negative electrode, positive electrode, and separator do not fall off and are smooth. In addition, after the electrolyte is injected, the adhesive tape for fixing the electrode body or the coating agent itself dissolves in the electrolyte, releasing the tightness of the electrode body, so that it can be used during battery discharge. This solves the problem that a part of the core material on the end face of the positive electrode mixture breaks the separator due to expansion of the positive electrode mixture, causing an internal short circuit.
【0008】[0008]
【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【0009】図1において、正極板1は二酸化マンガン
を主活物質とする正極合材をチタニウム、またはステン
レス製のエキスパンデッドネットからなる芯材(図示し
ていない)に充填し、乾燥したものである。4は芯材と
同材質からなる正極リード板で芯材にスポット溶接した
ものである。負極板2は金属リチウムからなり、その一
側面に負極集電体5が圧着されている。セパレータ3は
ポリプロピレン,ポリエチレンまたはポリプロピレンと
ポリエチレンの混合体からなる不織布,微孔膜シートを
帯状に裁断したものである。本実施例ではポリプロピレ
ン製微孔膜シートを使用した。次に、これらの正、負極
1,2間にセパレータ3を介在して、全体を渦巻状に巻
回し、電極体を構成する。そして、従来の第2の方法と
同様に電極体最外周のセパレータ3aと次外周のセパレ
ータ3bとを本実施例の電解液に可溶性のたとえばアク
リル系粘着剤を使用した粘着テープ6で固定した。他の
方法の実施例としては、電極体を構成すると同時にアク
リル樹脂を速乾性の揮発性溶剤に溶解させた液中に電極
体を浸積して後引上げ、揮発性溶剤を揮発させて電極体
全面をアクリル樹脂でコーティングしてバインドするも
のである。これにより、渦巻状電極体の構成を完了する
。次に前記電極体に下部絶縁板8を装着して、円筒状の
ケース9に挿入し、正極リード板4,負極集電体5を封
口板10,ケース9のそれぞれに接触し、上部絶縁板7
の装着、さらにケース9上部に段部9aを形成させた後
、電解液を(本実施例では炭酸プロピレンと1,2ジメ
トキシエタンの混合溶媒に溶質として、過塩素酸リチウ
ムを溶解させたものを使用した。)注入する。そして、
封口板10を装着した後、ケース9開口端をカシメ封口
することにより、電池の組立を完了する。次に2つの方
法による本実施例と前記した2つの従来方式による電池
における内部短絡状況、つまり電池組立後の電圧検査時
点、ならびに放電テストにおける内部短絡状況を(表1
)に比較して示す。本実施例品(1)は、本実施例の粘
着テープを使用したもの、本実施例品(2)は、コーテ
ィング処理を行ったもの、従来品(3)は、粘着テープ
を使用しないもの、従来品(4)は、従来の粘着テープ
を使用したものを示す。In FIG. 1, a positive electrode plate 1 is made by filling a core material (not shown) made of expanded net made of titanium or stainless steel with a positive electrode composite material containing manganese dioxide as the main active material, and drying it. It is. 4 is a positive electrode lead plate made of the same material as the core material and spot welded to the core material. The negative electrode plate 2 is made of metal lithium, and a negative electrode current collector 5 is crimped onto one side thereof. The separator 3 is a nonwoven fabric made of polypropylene, polyethylene, or a mixture of polypropylene and polyethylene, and a microporous membrane sheet cut into strips. In this example, a polypropylene microporous membrane sheet was used. Next, a separator 3 is interposed between these positive and negative electrodes 1 and 2, and the whole is spirally wound to form an electrode body. Then, similarly to the second conventional method, the separator 3a on the outermost periphery of the electrode body and the separator 3b on the next outer periphery were fixed with an adhesive tape 6 using, for example, an acrylic adhesive soluble in the electrolytic solution of this example. As an example of another method, at the same time as forming the electrode body, the electrode body is immersed in a liquid in which acrylic resin is dissolved in a quick-drying volatile solvent, and then pulled up, and the volatile solvent is evaporated to form the electrode body. The entire surface is coated with acrylic resin and bound. This completes the configuration of the spiral electrode body. Next, the lower insulating plate 8 is attached to the electrode body and inserted into the cylindrical case 9, the positive electrode lead plate 4 and the negative electrode current collector 5 are brought into contact with the sealing plate 10 and the case 9, respectively, and the upper insulating plate 7
After the step 9a is formed on the upper part of the case 9, an electrolytic solution (in this example, lithium perchlorate is dissolved as a solute in a mixed solvent of propylene carbonate and 1,2 dimethoxyethane) is added. used.) Inject. and,
After attaching the sealing plate 10, the open end of the case 9 is caulked to complete the assembly of the battery. Next, the internal short-circuit conditions of the batteries according to this example and the two conventional methods described above, that is, the voltage test after battery assembly, and the internal short-circuit conditions during the discharge test are summarized (Table 1).
). This example product (1) uses the adhesive tape of this example, this example product (2) uses coating treatment, and the conventional product (3) uses no adhesive tape. Conventional product (4) uses a conventional adhesive tape.
【0010】0010
【表1】[Table 1]
【0011】(表1)から明らかなように、本実施例に
よる電極体は内部短絡を防止する極めて優れた効果が得
られる。なお、本実施例に用いたアクリル樹脂以外に使
用できる樹脂としては、各種実験の結果ポリブテン樹脂
,ブチレンテレフタレート樹脂,メチルメタフリレート
樹脂が同様の効果を示すものである。As is clear from Table 1, the electrode body according to this example has an extremely excellent effect of preventing internal short circuits. Note that as resins that can be used other than the acrylic resin used in this example, polybutene resin, butylene terephthalate resin, and methyl methacrylate resin have shown similar effects as a result of various experiments.
【0012】0012
【発明の効果】以上の実施例の説明で明らかなように本
発明の有機電解液電池によれば、従来のように電極体の
固定粘着テープなしの場合に生ずる、負極ケースへ挿入
の際、負極,正極およびセパレータ各々の種々のずれの
発生、また、電極体を粘着テープ等で緊縛度を保ったま
ま固定していることに起因する放電途中で正極合剤の膨
張による、正極合剤端面の芯材の一部がセパレータを破
り内部短絡することを防止する効果が得られる。Effects of the Invention As is clear from the above description of the embodiments, the organic electrolyte battery of the present invention has the following advantages: Various misalignments of the negative electrode, positive electrode, and separator, and expansion of the positive electrode mixture during discharge due to fixing the electrode body with adhesive tape, etc. while maintaining the tightness can cause damage to the end surface of the positive electrode mixture. This has the effect of preventing a part of the core material from breaking the separator and causing an internal short circuit.
【図1】本発明の一実施例の有機電解液電池の構成を示
す縦断面図FIG. 1 is a vertical cross-sectional view showing the structure of an organic electrolyte battery according to an embodiment of the present invention.
【図2】従来の有機電解液電池の第1の方法による渦巻
状電極体の正面図[Fig. 2] Front view of a spiral electrode body according to the first method of a conventional organic electrolyte battery
【図3】同第2の方法による渦巻状電極体の正面図[Fig. 3] Front view of a spiral electrode body according to the second method.
1 正極板 2 負極板 3 セパレータ 3a 最外周セパレータ 3b 次外周セパレータ 6 粘着テープ 9 ケース 1 Positive electrode plate 2 Negative electrode plate 3 Separator 3a Outermost separator 3b Next outer periphery separator 6 Adhesive tape 9 Case
Claims (3)
、有機電解液とからなる電池であって、前記両極の相互
間に帯状のセパレータを介在させ、渦巻状に巻回して構
成された電極体を固定している最外周の粘着テープの粘
着剤として電解液に可溶性の粘着剤を使用した粘着テー
プを使用する有機電解液電池。[Claim 1] A battery consisting of a negative electrode using a light metal as an active material, a positive electrode, and an organic electrolyte, the electrodes being spirally wound with a band-shaped separator interposed between them. An organic electrolyte battery that uses adhesive tape that uses an electrolyte-soluble adhesive as the adhesive for the outermost adhesive tape that fixes the electrode body.
、有機電解液とからなる電池であって、前記両極の相互
間に帯状のセパレータを介在させ、渦巻状に巻回して構
成された電極体を電解液に可溶性の物質でコーティング
する有機電解液電池。[Claim 2] A battery comprising a negative electrode using a light metal as an active material, a positive electrode, and an organic electrolyte, the battery comprising a strip-shaped separator interposed between the two electrodes and wound spirally. An organic electrolyte battery in which the electrode body is coated with a substance soluble in the electrolyte.
剤がアクリル樹脂,ポリブテン樹脂,ブチレンテレフタ
レート樹脂,メチルメタクリレート樹脂である請求項1
,2記載の有機電解液電池。[Claim 3] Claim 1, wherein the adhesive or coating agent soluble in the electrolytic solution is an acrylic resin, a polybutene resin, a butylene terephthalate resin, or a methyl methacrylate resin.
, 2. The organic electrolyte battery according to .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3116006A JP2782975B2 (en) | 1991-05-21 | 1991-05-21 | Organic electrolyte battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3116006A JP2782975B2 (en) | 1991-05-21 | 1991-05-21 | Organic electrolyte battery |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04342959A true JPH04342959A (en) | 1992-11-30 |
JP2782975B2 JP2782975B2 (en) | 1998-08-06 |
Family
ID=14676501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3116006A Expired - Fee Related JP2782975B2 (en) | 1991-05-21 | 1991-05-21 | Organic electrolyte battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2782975B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09199178A (en) * | 1996-01-19 | 1997-07-31 | Japan Storage Battery Co Ltd | Sealed secondary cell |
JP2000173658A (en) * | 1998-12-02 | 2000-06-23 | Nitto Denko Corp | Glue, adhesive or adhesive tape sheet for battery |
-
1991
- 1991-05-21 JP JP3116006A patent/JP2782975B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09199178A (en) * | 1996-01-19 | 1997-07-31 | Japan Storage Battery Co Ltd | Sealed secondary cell |
JP2000173658A (en) * | 1998-12-02 | 2000-06-23 | Nitto Denko Corp | Glue, adhesive or adhesive tape sheet for battery |
Also Published As
Publication number | Publication date |
---|---|
JP2782975B2 (en) | 1998-08-06 |
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