JPH026606Y2 - - Google Patents
Info
- Publication number
- JPH026606Y2 JPH026606Y2 JP1981115766U JP11576681U JPH026606Y2 JP H026606 Y2 JPH026606 Y2 JP H026606Y2 JP 1981115766 U JP1981115766 U JP 1981115766U JP 11576681 U JP11576681 U JP 11576681U JP H026606 Y2 JPH026606 Y2 JP H026606Y2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- electrode plate
- current collector
- plate
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Description
【考案の詳細な説明】
本考案はリチウム、ナトリウムなどの軽金属板
よりなる帯状負極板と、フツ化炭素、二酸化マン
ガンなどを活物質とする帯状正極板とをセパレー
タを介して巻回せる電極群を備えた有機電解質電
池に係り、特に負極集電体形状を改良することに
より極板巻回時の作業性を低下させることなく電
池性能の向上を計るものである。[Detailed description of the invention] The present invention is an electrode group in which a strip-shaped negative electrode plate made of a light metal plate such as lithium or sodium, and a strip-shaped positive electrode plate made of carbon fluoride, manganese dioxide, etc. as an active material are wound through a separator. The purpose of this invention is to improve battery performance without reducing workability during electrode plate winding, particularly by improving the shape of the negative electrode current collector.
従来この種電池における負極板構造は、例えば
第１図に示すようにリチウム板よりなる帯状負極
板１の片面に、この負極板の幅と略等しい幅を有
する多孔性金属板よりなる負極集電体２を圧着
し、且負極集電体２の延長部２′を巻芯兼用の集
電棒３に固着したものであつた。 Conventionally, the negative electrode plate structure of this type of battery is as shown in FIG. 1, for example, a negative electrode current collector made of a porous metal plate having a width approximately equal to the width of the negative electrode plate is placed on one side of a strip-shaped negative electrode plate 1 made of a lithium plate. The body 2 was crimped, and the extended portion 2' of the negative electrode current collector 2 was fixed to a current collecting rod 3 which also served as a winding core.
ところが上記せるリチウムの如き軽金属はそれ
自身極めて導電性が高いものであり、集電体がな
くても正極板との対向面で十分放電反応が進行す
ることが確認された。 However, the above-mentioned light metal such as lithium itself has extremely high conductivity, and it has been confirmed that the discharge reaction can proceed sufficiently on the surface facing the positive electrode plate even without a current collector.
そのため、第１図に示すように負極集電体２が
負極板１の片面全域を覆うものにあつては、負極
板の反応を阻害すること及び材料の無駄につなが
ることになる。 Therefore, if the negative electrode current collector 2 covers the entire surface of one side of the negative electrode plate 1 as shown in FIG. 1, this will impede the reaction of the negative electrode plate and lead to waste of material.
上記せる不都合を解消するために、第２図に示
すように負極板１の一部のみに圧着されるような
小形の負極集電体１２が提案されている。 In order to eliminate the above-mentioned disadvantages, a small negative electrode current collector 12 that is crimped onto only a portion of the negative electrode plate 1 as shown in FIG. 2 has been proposed.
然るに、この場合においては特に本願の対象と
するように正、負極板間にセパータを介在しこれ
らを巻回して電極群を構成する電池にあつては新
たな問題が生じる。即ち負極板を構成するリチウ
ム板等の軽金属板が極めて柔らかいため電極板を
巻回する際に電極板の周縁部が変形しやすく作業
性、信頼性が低下する欠点があつた。 However, in this case, a new problem arises especially in the case of a battery, which is the object of the present application, in which a separator is interposed between the positive and negative electrode plates and these are wound to form an electrode group. That is, since the light metal plate such as a lithium plate constituting the negative electrode plate is extremely soft, the peripheral edge of the electrode plate is easily deformed when the electrode plate is wound, resulting in lower workability and reliability.
本考案は斯る点に鑑みてなされたものであり、
その要旨とするところは負極集電体として、負極
板の幅と略等しい幅を有し且少くとも中央部を開
口した形状の多孔性金属板を用いるものであり、
負極板の巻回方向における上下縁部に集電体部分
を位置させて巻回時における負極板の周縁部の変
形を防止すると共に中央部を開口して負極板の反
応を円滑に進行させて電池性能の向上を計るもの
である。 This invention was made in view of these points,
The gist of this is that a porous metal plate having a width approximately equal to the width of the negative electrode plate and having an opening at least in the center is used as the negative electrode current collector.
The current collector portions are located at the upper and lower edges of the negative electrode plate in the winding direction to prevent deformation of the peripheral edge of the negative electrode plate during winding, and the central portion is opened to allow the reaction of the negative electrode plate to proceed smoothly. It measures the improvement of battery performance.
以下本考案の実施例について詳述する。尚、第
１図及び第２図における図番と同一図番は同一要
素を示し説明は省略する。 Examples of the present invention will be described in detail below. Note that the same figure numbers as those in FIGS. 1 and 2 indicate the same elements, and their explanations will be omitted.
第３図において、２０はステンレス、銅などの
エレクトロフオミング板の如き多孔性金属板より
なる負極集電体であつて、負極板１の幅と略等し
い幅を有し且中央部を開口４した枠状を呈するも
のである。 In FIG. 3, reference numeral 20 denotes a negative electrode current collector made of a porous metal plate such as an electroforming plate made of stainless steel or copper, which has a width approximately equal to the width of the negative electrode plate 1 and has an opening 4 in the center. It has a frame-like shape.
第４図は電池の半断面図を示し、正、負極板
５，１はセパレータ６を介して巻芯兼用集電棒３
によつて巻回され、負極板１は負極集電体２０及
び負極集電棒３を介して負極端子兼用封口蓋９に
接続され、又正極板５は導電内缶７を介して正極
端子兼用外装缶８に接続されている。１０は絶縁
パツキングである。 FIG. 4 shows a half-sectional view of the battery, in which the positive and negative electrode plates 5, 1 are connected to a current collecting rod 3 which also serves as a winding core through a separator 6.
The negative electrode plate 1 is connected to a sealing lid 9 that also serves as a negative electrode terminal via a negative electrode current collector 20 and a negative electrode current collector rod 3, and the positive electrode plate 5 is connected to a sealing lid 9 that also serves as a positive electrode terminal via a conductive inner can 7. Connected to can 8. 10 is an insulating packing.
尚、第５図及び第６図は負極集電体形状の他の
例を示し、第５図における負極集電体２０Ａは第
３図の集電体２０の開口部４に粗い格子２１を形
設した場合であり、又第６図における負極集電体
２０Ｂは第３図における集電体２０の巻回方向に
おける終端部を取除いた場合である。 5 and 6 show other examples of the shape of the negative electrode current collector, and the negative electrode current collector 20A in FIG. 5 has a rough grid 21 formed in the opening 4 of the current collector 20 in FIG. The negative electrode current collector 20B in FIG. 6 is the case where the terminal end in the winding direction of the current collector 20 in FIG. 3 is removed.
以上詳述したように、本考案電池によれば負極
集電体が負極板の幅と略等しい幅を有し且少くと
も中央部を開口した形状を呈する多孔性金属板よ
りなるため、巻回時における負極板の周縁部の変
形を生じさせず、且負極集電体部分が介在せずに
正極板と直接的に対向する負極板の反応面積が拡
大して電池性能の向上が計れるものでありその実
用的価値は極めて大である。 As detailed above, according to the battery of the present invention, the negative electrode current collector is made of a porous metal plate having a width substantially equal to the width of the negative electrode plate and having an opening at least in the center. The battery performance can be improved by not causing deformation of the peripheral edge of the negative electrode plate and expanding the reaction area of the negative electrode plate that directly faces the positive electrode plate without intervening the negative electrode current collector part. Its practical value is extremely great.
第１図及び第２図は従来の負極集電体を圧着し
た負極板を示し、いづれの場合もａは正面図、ｂ
は横断面図である。第３図乃至第６図は本考案に
係り、第３図ａ及びｂは負極集電体を圧着した負
極板の正面図及び横断面図、第４図は本案電池の
半断面図、第５図及び第６図は本案の他の実施例
における負極集電体の正面図を夫々示す。
１……負極板、５……正極板、２０，２０Ａ，
２０Ｂ……負極集電体、４……開口部。
Figures 1 and 2 show a negative electrode plate with a conventional negative electrode current collector crimped, and in each case, a is a front view, and b is a front view.
is a cross-sectional view. 3 to 6 relate to the present invention, FIGS. 3a and 3b are front views and cross-sectional views of the negative electrode plate with the negative electrode current collector crimped, FIG. 4 is a half-sectional view of the battery of the present invention, and FIG. 6 and 6 respectively show front views of negative electrode current collectors in other embodiments of the present invention. 1... Negative electrode plate, 5... Positive electrode plate, 20, 20A,
20B... Negative electrode current collector, 4... Opening.
Claims (1)
をセパレータを介して巻回せる電極群を備える
ものであつて、前記負極板に圧着される負極集
電体が前記負極板の幅と略等しい幅を有し、且
少くとも中央部を開口した多孔性金属板よりな
ることを特徴とする電池。 前記負極集電体が前記負極板の幅と略等しい
幅を有する枠状体であることを特徴とする実用
新案登録請求の範囲第項記載の電池。[Claims for Utility Model Registration] A device comprising an electrode group in which a strip-shaped negative electrode plate made of a light metal and a strip-shaped positive electrode plate are wound with a separator interposed therebetween, wherein a negative electrode current collector crimped to the negative electrode plate is attached to the negative electrode. 1. A battery comprising a porous metal plate having a width substantially equal to the width of the plate and having an opening at least in the center. The battery according to claim 1, wherein the negative electrode current collector is a frame-shaped body having a width substantially equal to the width of the negative electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11576681U JPS5821962U (en) | 1981-08-03 | 1981-08-03 | battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11576681U JPS5821962U (en) | 1981-08-03 | 1981-08-03 | battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5821962U JPS5821962U (en) | 1983-02-10 |
| JPH026606Y2 true JPH026606Y2 (en) | 1990-02-16 |
Family
ID=29910020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11576681U Granted JPS5821962U (en) | 1981-08-03 | 1981-08-03 | battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821962U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63133691U (en) * | 1987-02-25 | 1988-09-01 | ||
| JPS63168391U (en) * | 1987-04-22 | 1988-11-02 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711473A (en) * | 1980-06-24 | 1982-01-21 | Yuasa Battery Co Ltd | Battery |
-
1981
- 1981-08-03 JP JP11576681U patent/JPS5821962U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711473A (en) * | 1980-06-24 | 1982-01-21 | Yuasa Battery Co Ltd | Battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5821962U (en) | 1983-02-10 |
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