JPS63193465A - Cylindrical nonaqueous electrolyte battery - Google Patents
Cylindrical nonaqueous electrolyte batteryInfo
- Publication number
- JPS63193465A JPS63193465A JP2355787A JP2355787A JPS63193465A JP S63193465 A JPS63193465 A JP S63193465A JP 2355787 A JP2355787 A JP 2355787A JP 2355787 A JP2355787 A JP 2355787A JP S63193465 A JPS63193465 A JP S63193465A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- electrode plate
- metal
- metal support
- active material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 15
- 239000007774 positive electrode material Substances 0.000 claims abstract description 11
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 10
- 239000003792 electrolyte Substances 0.000 claims abstract description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000003125 aqueous solvent Substances 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 2
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052708 sodium Inorganic materials 0.000 abstract description 2
- 239000011734 sodium Substances 0.000 abstract description 2
- 239000003115 supporting electrolyte Substances 0.000 abstract description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 abstract 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000002390 adhesive tape Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
し産業上の利用分野〕
本発明は円筒形非水電解液電池の正極板に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a positive electrode plate for a cylindrical non-aqueous electrolyte battery.
従来、長尺状の正負両極板をセパレータを介して渦巻状
（二巻口してなる円筒形電池では、金網、バンチトメタ
ル、ラスメタル等多孔性金属支持体に、正極活物質を担
持させた正極板を用いるため、正極板は曲げに対して反
発性があった。そのため、巻き終わり端部で外側に向か
う力が働いていた。Conventionally, in cylindrical batteries in which elongated positive and negative electrode plates are arranged in a spiral shape (two windings) with a separator interposed between them, a positive electrode active material is supported on a porous metal support such as wire mesh, bunched metal, lath metal, etc. Since the positive electrode plate was used, it was resilient to bending.As a result, an outward force was exerted at the end of the winding.
一方、この正極板は長尺状に形成された後、所定形状に
打抜き、切り出し等により用いられるため、打抜き切り
出し時に金属支持体にパリが生じた。On the other hand, since this positive electrode plate is formed into a long length and then used by punching, cutting, etc. into a predetermined shape, cracks occur in the metal support during punching and cutting.
そのため、正極板巻き終わり端部にできた金属支持体の
パリが、外側に押しつけられることになり、セパレータ
をつき抜けて負極板、または負極端子を兼ねる電池容器
と接触し、内部短絡を引き起こす欠点があった。また、
パリが生じなくても、支持体自体が端部で折り返ること
によっても同様のことが起きた。そのため、ポリプロピ
レン等の耐電解液性の粘着テープを正極板の巻き終わり
端部に添着して、その防護策としていた。As a result, the edges of the metal support formed at the end of the winding of the positive electrode plate are pressed outward, penetrating through the separator and coming into contact with the negative electrode plate or the battery container that also serves as the negative terminal, causing an internal short circuit. was there. Also,
The same thing happened when the support itself folded back at the edges, even though no breakout occurred. Therefore, an electrolyte-resistant adhesive tape made of polypropylene or the like is attached to the winding end of the positive electrode plate as a protective measure.
しかし、粘着テープは、パリや支持体端部の折り返しを
矯正する強度を持たないため、パリ等の高さを吸収する
粘着テープの厚さが必要となった。However, since the adhesive tape does not have the strength to correct the cracks and the folding of the ends of the support, the adhesive tape needs to be thick enough to absorb the height of the edges.
また、露出した金属支持体端部に正極活物質が付着して
いると、テープの粘着性を悪くするため、もきらうため
、電池の製造は水分を除去したアルゴン、ドライエアー
等の雰囲気のグローブボックス中で行なう必要があった
。また、正極板も吸着水、結合水等をもっているため、
グローブボックスに慢入する前に加熱脱水処理を施す必
要があった。その温度は一般に２００℃〜３００℃程度
であり、ホリブロビレン等の粘着テープが耐えられない
温度であった。そのため、粘着テープの添着は正極板の
加熱脱水処理後、グローブボックス中で行なわなければ
ならず、その作業は非常な困難を伴なうものであった。In addition, if the positive electrode active material adheres to the exposed edge of the metal support, it will deteriorate the adhesiveness of the tape and should not be used. Therefore, battery manufacturing is carried out in a gloved atmosphere such as argon or dry air from which moisture has been removed. It had to be done inside the box. In addition, since the positive electrode plate also has adsorbed water, bound water, etc.
It was necessary to heat and dehydrate it before putting it in the glove box. The temperature is generally about 200°C to 300°C, which is a temperature that adhesive tapes such as hollybrobylene cannot withstand. Therefore, the adhesive tape had to be attached in a glove box after the positive electrode plate had been heated and dehydrated, and this work was extremely difficult.
そこで本発明者らは、以前に正極板巻き終わり端部に金
属板をスポット溶接等で固着すること（二より、端部で
の内部短絡を防止することを考えたが、この方法では、
防護用の金属板を別工程にて用意する必要があり、また
、スポット溶接を行なう場合（：その溶接条件によって
は溶接部でのパリが生じる等の問題も発生することがあ
った。Therefore, the present inventors previously considered fixing a metal plate to the end of the winding of the positive electrode plate by spot welding, etc. (Secondly, to prevent internal short circuits at the end), but with this method,
It is necessary to prepare a protective metal plate in a separate process, and when spot welding is performed (depending on the welding conditions, problems such as flashing at the welded part may occur).
本発明は従来のこのような欠点を解決するため、正極板
巻き終わり端部の露出金属支持体に非導電性熱可塑性樹
脂を塗着することにより、端部での内部短絡が皆無でか
つ作業工程が簡素で信頼性の高い円筒形非水電解液電池
を提供することを目的とする。In order to solve these conventional drawbacks, the present invention coats a non-conductive thermoplastic resin on the exposed metal support at the end of the winding of the positive electrode plate, thereby eliminating any internal short circuit at the end and making it easier to operate. The purpose of the present invention is to provide a cylindrical non-aqueous electrolyte battery that has a simple process and is highly reliable.
本発明は、金網、パンチトメタル、ラスメタル等の多孔
性金属支持体に、二酸化マンガン、弗化黒鉛、硫化鉄等
を主成分とする正極活物質を担持させた長尺状の正極板
と、リテクム、ナトリウム等の軽金属よりなる長尺状の
負極板とを、セパレータを介して渦巻状に巻回し、非水
溶媒に過塩素酸９ｆ−クム等の支持電解質を溶解した電
解液とともに、電池容器に収納し、密封口してなる円筒
形非水電解液電池であって、上記正極板の巻き終わり端
部の正極活物質を除去し、金属支持体を露出し、該露出
金属支持体に非導電性熱可塑性樹脂を塗着することを特
徴としているものである。The present invention provides a long positive electrode plate in which a porous metal support such as a wire mesh, punched metal, lath metal, etc. supports a positive electrode active material mainly composed of manganese dioxide, graphite fluoride, iron sulfide, etc. A long negative electrode plate made of a light metal such as lithium, sodium, etc. is wound spirally through a separator, and a battery container is placed together with an electrolytic solution in which a supporting electrolyte such as 9F-cum perchlorate is dissolved in a non-aqueous solvent. A cylindrical non-aqueous electrolyte battery having a sealed opening, in which the positive electrode active material at the end of the winding of the positive electrode plate is removed to expose the metal support, and a non-aqueous electrolyte battery is provided in the exposed metal support. It is characterized by coating with a conductive thermoplastic resin.
本発明は前記のようセ、正極板巻き終わり端部に非導電
性熱可塑性樹脂を塗着すること；；より、パリと金属支
持体端部の表面が非導電性となり、たとえセパレータを
つき抜けて負極板もしくは負極端子を兼ねる電池容器と
該端部とが接触しても、内部短絡という事態を防止する
ことができる。また、従来の粘着テープの添着とは異な
り、熱可塑性樹脂塗着部の金属支持体端部の正極活物質
の除去が不完全であってもよく、さら：：軟化温度の高
い樹脂を用いれば、正極板の加熱脱水処理前、即ちグロ
ーブボックス外で樹脂塗着作業ができる。The present invention, as described above, involves applying a non-conductive thermoplastic resin to the end of the winding of the positive electrode plate; as a result, the surface of the electrode and the end of the metal support becomes non-conductive, even if it penetrates through the separator. Even if the end portion comes into contact with the negative electrode plate or the battery container which also serves as a negative electrode terminal, an internal short circuit can be prevented. Furthermore, unlike conventional adhesive tape attachment, the removal of the positive electrode active material from the edge of the metal support in the thermoplastic resin coating area may be incomplete; furthermore, if a resin with a high softening temperature is used, , the resin coating work can be done before the positive electrode plate is heated and dehydrated, that is, outside the glove box.
Ｊ
またさらに、樹脂塗着の際（二液だたしたものは、受は
皿を設けることによって、樹脂を再利用することもでき
る。Furthermore, the resin can be reused by providing a tray when applying the resin (if two parts are poured).
（実施例〕 以下、本発明の実施例を図面により説明する。(Example〕 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明（二よる正極板の巻き終わり端部を示し
ている。正極活物質１を一部除去して金属支持体２を露
出させ、そこに非導電性熱可塑性樹脂３を塗布固着する
。Figure 1 shows the end of the winding of the positive electrode plate according to the present invention (2). Part of the positive electrode active material 1 is removed to expose the metal support 2, and a non-conductive thermoplastic resin 3 is applied thereto. stick.
以下に、本発明を円筒形二酸化マンガン、リチウム非水
電解液電池に用いた場合の例を、従来と比較して説明す
る。第２図は本発明の正極板の巻き終わり端部な示して
おり、ステンレススチール８ＵＳ ３０４のラスメタル
よりなる支持体２に、二酸化マンガンと導電剤としての
グラファイト、ポリテトラフロロエチレン等の結着剤よ
りなる正極活物質１が担持されて正極板となっている。Below, an example in which the present invention is applied to a cylindrical manganese dioxide, lithium non-aqueous electrolyte battery will be described in comparison with a conventional battery. Figure 2 shows the end of the winding of the positive electrode plate of the present invention, in which a support body 2 made of lath metal of stainless steel 8US 304 is coated with manganese dioxide, graphite as a conductive agent, and a binder such as polytetrafluoroethylene. A positive electrode active material 1 consisting of the following is supported to form a positive electrode plate.
その端樹脂３を加熱し軟化させ、塗着して本発明品［Ａ
）とする。比較として、第３図に例示したように、正極
活物質１１を担持した金属支持体１２の端部に、厚さ０
０１ｎのＳＵＳ ３０４からなる金属板１３を、スポッ
ト溶接により固着したものを従来品ＣＢ）、金属板の代
りに厚さ０２鱈のポリプロピレンテープな添着したもの
を従来品〔Ｃ〕とし、各々１００個試作した。この各正
極板を用いて円筒形非水電解液電池を組み立て、各々に
ついて振動試験と自由落下試験とを行なった。その時の
内部短絡発生個数を第１表に示す。尚、内部短絡発生の
有無は試験前後での開路電圧変化で確認した。更：二、
従来品〔Ｂ〕。The end resin 3 is heated and softened, and the product of the present invention [A] is applied.
). For comparison, as illustrated in FIG.
Conventional product CB) is a metal plate 13 made of 01N SUS 304 fixed by spot welding, and Conventional product [C] is a product with a 02mm thick polypropylene tape attached instead of the metal plate, 100 pieces each. I made a prototype. A cylindrical non-aqueous electrolyte battery was assembled using each of the positive electrode plates, and a vibration test and a free fall test were conducted on each battery. Table 1 shows the number of internal short circuits that occurred at that time. The presence or absence of an internal short circuit was confirmed by the change in open circuit voltage before and after the test. Further: 2,
Conventional product [B].
ＥＣ）については、電池組み立て時にすでに内部短絡を
おこしたものがあったので、その個数も第１表に併記し
た。Regarding EC), since some batteries had already caused internal short circuits during assembly, the number of such batteries is also listed in Table 1.
第１表
〔発明の効果〕
以上の如く、本発明は製造作業性を大幅に改善し、かつ
信頼性の非常に高い円筒形非水電解液電池を提供できる
ものである。Table 1 [Effects of the Invention] As described above, the present invention can significantly improve manufacturing workability and provide a highly reliable cylindrical nonaqueous electrolyte battery.
尚、本発明における非導電性熱可塑性樹脂は、芳香族ポ
リアミドまたはポリイミドを含んでいることが好ましい
。芳香族ポリアミドやポリイミドは軟化温度が高く、耐
候性に優れているため、正極板の加熱脱水処理前に塗着
でき、グローブボックス中で樹脂の塗着をする必要がな
いため、作業工程を簡素なものにできるという利点があ
る。In addition, it is preferable that the non-conductive thermoplastic resin in this invention contains aromatic polyamide or polyimide. Aromatic polyamides and polyimides have high softening temperatures and excellent weather resistance, so they can be applied before heating and dehydrating the positive electrode plate, and there is no need to apply the resin in the glove box, simplifying the work process. It has the advantage of being able to be made into something.
第１図は本発明の樹脂を塗着した正極板巻き終わり端部
、第２図は正極板巻き終わり端部のそれぞれの斜視図、
第３図は金属板または添着テープを用いた正極板の展開
図である。Fig. 1 is a perspective view of the winding end of the positive electrode plate coated with the resin of the present invention, and Fig. 2 is a perspective view of the winding end of the positive electrode plate.
FIG. 3 is a developed view of a positive electrode plate using a metal plate or adhesive tape.
Claims (2)
状の正極板と、軽金属よりなる長尺状の負極板とを、セ
パレータを介して渦巻状に巻回し、非水溶媒に電解質を
溶解した電解液とともに、電池容器に収納し、密封口し
てなる円筒形非水電解液電池において、該正極板の巻き
終り端部の正極活物質を除去し、金属支持体を露出して
、該露出金属支持体に非導電性熱可塑性樹脂を塗着した
ことを特徴とする円筒形非水電解液電池。(1) A long positive electrode plate in which a positive electrode active material is supported on a porous metal support and a long negative electrode plate made of a light metal are spirally wound with a separator interposed therebetween, and then placed in a non-aqueous solvent. In a cylindrical non-aqueous electrolyte battery that is housed in a battery container with an electrolytic solution containing dissolved electrolyte and sealed, the positive electrode active material at the winding end of the positive electrode plate is removed to expose the metal support. A cylindrical non-aqueous electrolyte battery, characterized in that the exposed metal support is coated with a non-conductive thermoplastic resin.
リイミドを主とすることを特徴とする特許請求の範囲第
１項記載の円筒形非水電解液電池。(2) The cylindrical non-aqueous electrolyte battery according to claim 1, wherein the thermoplastic resin is mainly made of aromatic polyamide or polyimide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2355787A JPS63193465A (en) | 1987-02-05 | 1987-02-05 | Cylindrical nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2355787A JPS63193465A (en) | 1987-02-05 | 1987-02-05 | Cylindrical nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63193465A true JPS63193465A (en) | 1988-08-10 |
Family
ID=12113809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2355787A Pending JPS63193465A (en) | 1987-02-05 | 1987-02-05 | Cylindrical nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63193465A (en) |
-
1987
- 1987-02-05 JP JP2355787A patent/JPS63193465A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2197431C (en) | Rechargeable battery structure and method of making same | |
| US2564495A (en) | Deferred action primary battery | |
| JP3452642B2 (en) | Electrochemical cell, its anode and method of coating anode | |
| US4604333A (en) | Non-aqueous electrolyte battery with spiral wound electrodes | |
| JPS63193465A (en) | Cylindrical nonaqueous electrolyte battery | |
| JPS58126664A (en) | Electrochemical cell and sealing method therefor | |
| US4106184A (en) | Method for making fused solid electrolyte capacitor assemblages and a fused capacitor made thereby | |
| JPH07226197A (en) | Battery | |
| JPH11176447A (en) | Battery and manufacture thereof | |
| JP3352863B2 (en) | Non-aqueous electrolyte battery | |
| JPS55119347A (en) | Manufacture of laminated dry battery | |
| JPS6345759A (en) | Cylindrical nonaqueous electrolyte battery | |
| JPH0620707A (en) | Spiral lithium battery | |
| JPH06215755A (en) | Thin type battery and manufacture thereof | |
| JPS59111259A (en) | Cylindrical nonaqueous electrolyte battery | |
| JPS61218058A (en) | Battery | |
| JPH0313964Y2 (en) | ||
| JPS59169057A (en) | Flat lithium cell with lead terminals | |
| JPH01220370A (en) | Manufacture of electrode | |
| JPS62119876A (en) | Manufacture of enclosed-type storage battery of nickel and cadmium | |
| AU686042B2 (en) | Rechargeable battery structure and method of making same | |
| JPH117939A (en) | Manufacture of electrode plate for battery | |
| JPS62139265A (en) | Cylindrical lithium battery | |
| JPH02220360A (en) | Manufacture of spiral type nonaqueous electrolyte battery | |
| JPS6344947Y2 (en) |