JPH0521263Y2 - - Google Patents
Info
- Publication number
- JPH0521263Y2 JPH0521263Y2 JP1987183624U JP18362487U JPH0521263Y2 JP H0521263 Y2 JPH0521263 Y2 JP H0521263Y2 JP 1987183624 U JP1987183624 U JP 1987183624U JP 18362487 U JP18362487 U JP 18362487U JP H0521263 Y2 JPH0521263 Y2 JP H0521263Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal lithium
- negative electrode
- present
- sheet
- lithium sheet
- 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 - Lifetime
Links
- 238000004080 punching Methods 0.000 claims description 9
- 239000005486 organic electrolyte Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 description 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 38
- 229910052751 metal Inorganic materials 0.000 description 28
- 239000002184 metal Substances 0.000 description 28
- 239000002893 slag Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
〔産業上の利用分野〕
本考案は、負極にLiを用いるとともに電解液に
有機溶媒を用いた有機電解質電池に関するもので
ある。
〔考案の概要〕
本考案は、Liを主体とする負極と正極及び有機
電解液よりなる有機電解質電池において、前記負
極の形状に少なくとも一箇所以上の直線部を設け
ることにより、金属リチウムシートの打抜き滓の
量を極力減らし、金属リチウムを節約するもので
ある。
〔従来の技術〕
従来、第３図Ａに示すように、負極缶５内面に
円板状に打抜かれた金属リチウム４を配設し、圧
着していた。第３図Ｂに示すように、円板状の金
属リチウム４はこの金属リチウム４の外径より４
〜６mm幅広い金属リチウムシート７より刃型にて
打抜かれていた。
〔考案が解決しようとする問題点〕
上述のような円板状の金属リチウム４を得よう
とすれば、当然のことながら十分幅広い金属リチ
ウムシート７より打抜かざるを得ず、第３図Ｂに
示すように、打抜き滓が多くなり、金属リチウム
が無駄になるという欠点があつた。
〔問題点を解決するための手段〕
本考案は、第２図Ｂに示すように、打抜かれる
金属リチウム４の外径より、0.5〜1.0mm幅の狭い
金属リチウムシート７を使用することにより、打
抜き滓の量を大幅に減少せしめ金属リチウムを節
約するものである。
又、従来の金属リチウム打抜き滓はリールに巻
き取られていたが、本考案では打抜き滓が継がつ
ていないので、金属リチウムシート７を少し押し
出しては刃型で打抜くという新しい方式を採用し
ている。
上述した結果として、本考案での金属リチウム
４は、第２図Ａに示すように、打抜きの際、偏心
がなければ２箇所の直線部を有した形状となる。
又、金属リチウムシート７に対して許容差の範囲
内で左右いずれかに打抜きにズレが生じた時は左
右いずれか一箇所のみが直線部となる。
〔作用〕
本考案の金属リチウム４と従来の金属リチウム
４の面積比較を行つた。
本考案の場合、金属リチウムシート７の幅を15
mm、金属リチウム４の打抜外径16mmとした場合、
打抜かれた金属リチウム４の面積は197.16mm2であ
る。
一方、従来の金属リチウム４は金属リチウムシ
ート７の幅を22mm、金属リチウムの打抜外径16mm
とした場合、打抜かれた金属リチウム４の面積は
200.96mm2である。
従つて、本考案の面積減少は従来と比べて1.9
％と僅少なものである。
次に、１ケの金属リチウム４を打抜くのに必要
な金属リチウムシート７量を比較する。
本考案の金属リチウムシート７、幅15mmで送り
ピツチ４1が１mm、打抜き刃型外径16mmとすれ
ば、必要金属リチウムシート７は15mm×17mm＝
255mm2である。
一方、従来の金属リチウムシート７、幅22mmで
送りピツチ2が３mm、打抜き刃型外径16mmとす
れば、必要金属リチウムシート７は22mm×19mm＝
418mm2となる。このことから明らかなように、本
考案は従来の61％の金属リチウムでよい訳であ
る。すなわち、金属リチウムが39％節減できたこ
とになる。
〔実施例〕
以下、本考案の具体的な実施例について説明す
るが、本考案がこれら実施例に限定されるもので
はない。
〔実施例 １〕
第１図は本考案を適用した一実施例を示す断面
図である。
図１，１は正極缶、２は正極ペレツト、３はセ
パレータ、４は負極缶５内面に配設され、圧着さ
れた金属リチウム４である。６はガスケツトであ
り、正極缶１と負極缶５の間でカシメられてい
る。電解液は１モル／ LiCO4を溶解したプ
ロピレンカーボネートとジメトキシエタンの混合
溶液である。
CR2016，CR2025，CR2032について、本考案
と従来例の放電容量を比較した。その結果を以下
に示す。データはｎ＝20のとσで示す。単位は
mAh。
[Industrial Application Field] The present invention relates to an organic electrolyte battery that uses Li for the negative electrode and an organic solvent for the electrolyte. [Summary of the invention] The present invention is an organic electrolyte battery consisting of a Li-based negative electrode, a positive electrode, and an organic electrolyte, in which a metal lithium sheet is punched by providing at least one straight portion in the shape of the negative electrode. This reduces the amount of slag as much as possible and conserves metallic lithium. [Prior Art] Conventionally, as shown in FIG. 3A, a metal lithium 4 punched into a disk shape has been disposed on the inner surface of a negative electrode can 5 and crimped. As shown in FIG. 3B, the disk-shaped metallic lithium 4 is
It was punched out from a metal lithium sheet 7 with a width of ~6 mm using a blade die. [Problems to be solved by the invention] In order to obtain the disk-shaped metallic lithium 4 as described above, it is necessary to punch out a sufficiently wide metallic lithium sheet 7, as shown in Fig. 3B. As shown in Figure 2, the disadvantage was that there was a large amount of punching slag, and metallic lithium was wasted. [Means for solving the problem] As shown in FIG. 2B, the present invention uses a metal lithium sheet 7 whose width is narrower by 0.5 to 1.0 mm than the outer diameter of the metal lithium 4 to be punched. , which greatly reduces the amount of punching slag and saves metallic lithium. In addition, in the past, the metal lithium punching slag was wound up on a reel, but in the present invention, the punching slag is not continuous, so a new method is adopted in which the metal lithium sheet 7 is pushed out a little and then punched with a blade die. ing. As a result of the above, the metal lithium 4 according to the present invention has a shape having two straight portions if there is no eccentricity during punching, as shown in FIG. 2A.
Further, when a deviation occurs in punching on either the left or right side within the tolerance range with respect to the metal lithium sheet 7, only one of the left and right places becomes a straight portion. [Function] The areas of the metallic lithium 4 of the present invention and the conventional metallic lithium 4 were compared. In the case of this invention, the width of the metal lithium sheet 7 is 15
mm, when the outer diameter of the punched metal lithium 4 is 16 mm,
The area of the punched metal lithium 4 is 197.16 mm 2 . On the other hand, in the conventional metal lithium 4, the width of the metal lithium sheet 7 is 22 mm, and the punched outer diameter of the metal lithium is 16 mm.
In this case, the area of the punched metal lithium 4 is
It is 200.96mm2 . Therefore, the area reduction of the present invention is 1.9 compared to the conventional one.
%, which is very small. Next, the amount of metal lithium sheet 7 required to punch out one metal lithium sheet 4 will be compared. If the width of the metal lithium sheet 7 of the present invention is 15 mm, the feed pitch 41 is 1 mm, and the outer diameter of the punching blade is 16 mm, then the required metal lithium sheet 7 is 15 mm x 17 mm =
It is 255mm2 . On the other hand, if the conventional metal lithium sheet 7 is 22 mm wide, the feed pitch 2 is 3 mm, and the punching blade outside diameter is 16 mm, the required metal lithium sheet 7 is 22 mm x 19 mm =
It becomes 418mm 2 . As is clear from this, the present invention requires only 61% of the conventional lithium metal. In other words, lithium metal was saved by 39%. [Examples] Hereinafter, specific examples of the present invention will be described, but the present invention is not limited to these examples. [Embodiment 1] FIG. 1 is a sectional view showing an embodiment to which the present invention is applied. 1, 1 is a positive electrode can, 2 is a positive electrode pellet, 3 is a separator, and 4 is a metal lithium 4 disposed on the inner surface of a negative electrode can 5 and crimped. A gasket 6 is caulked between the positive electrode can 1 and the negative electrode can 5. The electrolyte is a mixed solution of propylene carbonate and dimethoxyethane in which 1 mol/LiCO 4 is dissolved. The discharge capacities of the present invention and the conventional example were compared for CR2016, CR2025, and CR2032. The results are shown below. Data are shown as σ with n=20. Units
mAh.
以上の説明からも明らかなように、本考案にお
いては、負極の形状に少なくとも一箇所以上の直
線部を設けたことにより、使用する金属リチウム
シートの量を大幅に削減できるようになつた。
又、電池の放電容量も十分実用上問題がなく、
良好な有機電解質電池を提供することができる。
As is clear from the above description, in the present invention, by providing at least one straight portion in the shape of the negative electrode, the amount of metal lithium sheet used can be significantly reduced. In addition, the discharge capacity of the battery is sufficient for practical use,
A good organic electrolyte battery can be provided.
第１図は本考案を適用した有機電解質電池の一
例を示す断面図、第２図Ａ，Ｂは本考案の一実施
例を示す図で、各々、負極缶内面に金属リチウム
を配設した平面図、金属リチウムシート幅と金属
リチウム外径の関係を示す図、第３図Ａ，Ｂは従
来の一実施例を示す図で、各々、負極缶内面に金
属リチウムを配設した平面図、金属リチウムシー
ト幅と金属リチウム外径の関係を示す図である。
１……正極缶、２……正極ペレツト、３……セ
パレータ、４……金属リチウム、５……負極缶、
６……ガスケツト、７……金属リチウムシート、
1，2……送りピツチ。
Fig. 1 is a cross-sectional view showing an example of an organic electrolyte battery to which the present invention is applied, and Figs. 2 A and B are views showing an embodiment of the present invention. Figure 3 shows the relationship between the metal lithium sheet width and the metal lithium outer diameter, and Figures 3A and 3B are views showing a conventional example, respectively. FIG. 3 is a diagram showing the relationship between the lithium sheet width and the outer diameter of metallic lithium. 1... Positive electrode can, 2... Positive electrode pellet, 3... Separator, 4... Metal lithium, 5... Negative electrode can,
6...Gasket, 7...Metal lithium sheet,
1 , 2 ...Feeding pitch.
Claims (1)
りなり、前記Liはシートから打抜かれて成形さ
れるものにおいて、前記負極の周縁の形状が少
なくとも一箇所以上の直線状となることを特徴
とする有機電解質電池。 (2) 前記負極が、負極缶内面に圧着されているこ
とを特徴とする実用新案登録請求の範囲第１項
記載の有機電解質電池。[Claims for Utility Model Registration] (1) A negative electrode mainly composed of Li, a positive electrode, and an organic electrolyte, the Li being formed by punching out a sheet, in which the peripheral edge of the negative electrode has at least one part. An organic electrolyte battery characterized by having a linear shape as described above. (2) The organic electrolyte battery according to claim 1, wherein the negative electrode is pressure-bonded to the inner surface of the negative electrode can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183624U JPH0521263Y2 (en) | 1987-12-01 | 1987-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987183624U JPH0521263Y2 (en) | 1987-12-01 | 1987-12-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0188465U JPH0188465U (en) | 1989-06-12 |
| JPH0521263Y2 true JPH0521263Y2 (en) | 1993-05-31 |
Family
ID=31475040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987183624U Expired - Lifetime JPH0521263Y2 (en) | 1987-12-01 | 1987-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521263Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547247U (en) * | 1978-09-22 | 1980-03-27 | ||
| JPS5556370A (en) * | 1978-10-19 | 1980-04-25 | Yuasa Battery Co Ltd | Manufacturing method for negative pole for flat type lithium cell |
| JPS57128459A (en) * | 1981-02-03 | 1982-08-10 | Citizen Watch Co Ltd | Circular flat lithium battery |
| JPS5966055A (en) * | 1982-10-07 | 1984-04-14 | Sanyo Electric Co Ltd | Method of manufacturing soft metal electrode |
-
1987
- 1987-12-01 JP JP1987183624U patent/JPH0521263Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547247U (en) * | 1978-09-22 | 1980-03-27 | ||
| JPS5556370A (en) * | 1978-10-19 | 1980-04-25 | Yuasa Battery Co Ltd | Manufacturing method for negative pole for flat type lithium cell |
| JPS57128459A (en) * | 1981-02-03 | 1982-08-10 | Citizen Watch Co Ltd | Circular flat lithium battery |
| JPS5966055A (en) * | 1982-10-07 | 1984-04-14 | Sanyo Electric Co Ltd | Method of manufacturing soft metal electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0188465U (en) | 1989-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7191502B1 (en) | Current collector with penetrating holes of complicated shape for use in a secondary battery and manufacturing process thereof | |
| IE830623L (en) | Anode active material for alkaline cells | |
| JPH0521263Y2 (en) | ||
| JP2001126708A (en) | Method of manufacturing nonaqueous electrolyte battery | |
| DE2531275C3 (en) | Thin, flat galvanic cell | |
| GB1430907A (en) | Galvanic cells having rolled or coiled electrode assemblies in conductive housings | |
| DE2527783B2 (en) | Alkaline galvanic cell with a positive electrode made of silver oxide | |
| WO2022003109A1 (en) | Method and system for producing electrochemical cells, and electrode for an electrochemical cell | |
| JPH026606Y2 (en) | ||
| JPH0145942B2 (en) | ||
| JPS603492Y2 (en) | Sealed alkaline storage battery | |
| JPS5920563U (en) | spiral lithium battery | |
| JPS61163564A (en) | Nonaqueous electrolytic solution | |
| JPS582965U (en) | Substrate for lead-acid batteries | |
| JPS5931157U (en) | lead acid battery | |
| JPH0292663U (en) | ||
| JPH04121656U (en) | organic electrolyte battery | |
| JPS6081763A (en) | Manufacture of reed terminal for battery | |
| JPH0644484B2 (en) | Manufacturing method of electrode plate for alkaline storage battery | |
| JPS60243968A (en) | Manufacture of alkaline storage battery plate | |
| JPS62131365U (en) | ||
| JPS6112343B2 (en) | ||
| JPS58113966U (en) | Molten carbonate fuel cell | |
| JPS59132161U (en) | sealed battery | |
| JPS5883764U (en) | Nickel electrode for alkaline batteries |