JPH0785865A - Manufacture of lithium battery negative electrode plate - Google Patents
Manufacture of lithium battery negative electrode plateInfo
- Publication number
- JPH0785865A JPH0785865A JP25476693A JP25476693A JPH0785865A JP H0785865 A JPH0785865 A JP H0785865A JP 25476693 A JP25476693 A JP 25476693A JP 25476693 A JP25476693 A JP 25476693A JP H0785865 A JPH0785865 A JP H0785865A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- negative electrode
- current collector
- lithium sheet
- lithium
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005452 bending Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 1
- 238000007796 conventional method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はリチウム電池用負極板の
製造方法に関するものである。FIELD OF THE INVENTION The present invention relates to a method for producing a negative electrode plate for a lithium battery.
【０００２】[0002]
【従来の技術】従来のリチウム電池用負極板の製造方法
は、図５に示したように、第１のリチウムシート１１の
上に耳部３を有する集電体１０を配し、その上に第２の
リチウムシート１２を配して圧着し、図６に示したよう
な負極板とするものである。2. Description of the Related Art A conventional method for manufacturing a negative electrode plate for a lithium battery is, as shown in FIG. 5, arranged on a first lithium sheet 11 with a current collector 10 having an ear portion 3 thereon. The second lithium sheet 12 is arranged and pressure-bonded to obtain a negative electrode plate as shown in FIG.
【０００３】[0003]
【発明考案が解決しようとする課題】上記した従来のリ
チウム電池用負極板の製造方法では、第１のリチウムシ
ート１１上に集電体１０を配したり、その上に第２のリ
チウムシート１２を配して圧着する時に、集電体１０の
位置がずれる場合があり、手直しをしなければならない
という問題があった。In the above-described conventional method for manufacturing a negative electrode plate for a lithium battery, the current collector 10 is placed on the first lithium sheet 11 or the second lithium sheet 12 is placed thereon. When arranging and crimping, the position of the current collector 10 may be displaced, and there has been a problem that it has to be reworked.
【０００４】また、上記した従来のリチウム電池用負極
板の製造方法では、１枚の負極板に対して２枚のリチウ
ムシートを準備する必要があり、そのための工数が増加
するという問題があった。Further, in the above-described conventional method for manufacturing a negative electrode plate for a lithium battery, it is necessary to prepare two lithium sheets for one negative electrode plate, and there is a problem that the number of steps for that is increased. .
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、リチウムシート上に集電体を配し、前記
リチウムシートを折り曲げて前記集電体を挟んだ後、前
記リチウムシートの一部を前記集電体にスポット状に固
定した後、全面を圧着して負極板とすることを特徴とす
るものである。In order to solve the above-mentioned problems, the present invention provides a current collector on a lithium sheet, and after bending the lithium sheet to sandwich the current collector, the lithium sheet A part is fixed to the current collector in a spot shape, and then the entire surface is pressure-bonded to form a negative electrode plate.
【０００６】[0006]
【作用】従って、本発明はリチウムシートの一部を前記
集電体にスポット状に固定しているので、リチウムシー
ト上で集電体の位置がずれることはない。Therefore, according to the present invention, since a part of the lithium sheet is fixed to the current collector in a spot shape, the position of the current collector does not shift on the lithium sheet.
【０００７】また、本発明は、リチウムシートで集電体
を挟んで圧着しているので、１枚の負極板に対して１枚
のリチウムシートを準備するだけでよく、切断加工のた
めの工数を不要にすることができる。Further, according to the present invention, since the current collector is sandwiched and bonded by the lithium sheets, it is sufficient to prepare one lithium sheet for one negative electrode plate, and the number of steps for cutting is reduced. Can be eliminated.
【０００８】[0008]
【実施例】以下、本発明の実施例を図１、図２によって
説明する。Embodiments of the present invention will be described below with reference to FIGS.
【０００９】本発明の特徴は、図１に示したように、リ
チウムシート１の上に耳部３を有する集電体１０を配
し、図２に示したように、前記リチウムシート１を折り
曲げて前記集電体１０を挟んだ後、図３に示したよう
に、前記リチウムシート１の一部２をスポット状に押圧
して固定した後、全面を圧着して図４に示したような負
極板とするものである。The present invention is characterized in that, as shown in FIG. 1, a current collector 10 having ears 3 is arranged on a lithium sheet 1, and the lithium sheet 1 is bent as shown in FIG. After sandwiching the current collector 10 as shown in FIG. 3, a portion 2 of the lithium sheet 1 is pressed in a spot shape to be fixed, and then the entire surface is pressure-bonded as shown in FIG. It is used as a negative electrode plate.
【００１０】こうして得られた負極板は二酸化マンガン
を主体とする正極板と両者間に介挿したポリプロピレン
微孔膜からなるセパレータとともに極群を構成し、この
極群を複数個積層して電槽内に収納し、プロピレンカー
ボネートを主体とする電解液を注入してリチウム電池と
する。The negative electrode plate thus obtained constitutes a positive electrode group together with a positive electrode plate mainly containing manganese dioxide and a separator comprising a polypropylene microporous film interposed between the positive electrode plate and the positive electrode plate, and a plurality of the positive electrode groups are laminated to form a battery case. It is housed inside, and an electrolyte containing propylene carbonate as a main component is injected to obtain a lithium battery.
【００１１】次に、上記した本発明のリチウム電池用負
極板の製造方法と従来のリチウム電池用負極板の製造方
法とによって負極板を製造し、その時間を比較したとこ
ろ、本発明の負極板の製造方法による時間は従来の負極
板の製造方法による時間の９０％になることがわかり、
製造工数の削減が可能であることがわかった。Next, a negative electrode plate was manufactured by the above-described method for manufacturing a negative electrode plate for a lithium battery of the present invention and a conventional method for manufacturing a negative electrode plate for a lithium battery, and the times were compared. It can be seen that the time taken by the manufacturing method of is 90% of the time taken by the conventional manufacturing method of the negative electrode plate,
It was found that the number of manufacturing steps can be reduced.
【００１２】[0012]
【発明の効果】上記したとおりであるから、本発明はリ
チウムシートの一部をスポット状に固定することによっ
てリチウムシート上での集電体の位置ずれが防止でき、
また、リチウムシートを折り曲げて集電体を挟むことに
よって製造工数が削減できるので、その工業的価値は大
である。As described above, according to the present invention, by fixing a part of the lithium sheet in a spot shape, it is possible to prevent displacement of the current collector on the lithium sheet.
Also, since the number of manufacturing steps can be reduced by bending the lithium sheet and sandwiching the current collector, its industrial value is great.
【図１】本発明のリチウム電池用負極板の製造方法を説
明するための図である。FIG. 1 is a diagram illustrating a method for manufacturing a negative electrode plate for a lithium battery of the present invention.
【図２】本発明のリチウム電池用負極板の製造方法を説
明するための図である。FIG. 2 is a diagram illustrating a method for manufacturing a negative electrode plate for a lithium battery of the present invention.
【図３】本発明のリチウム電池用負極板の製造方法を説
明するための図である。FIG. 3 is a diagram illustrating a method for manufacturing a negative electrode plate for a lithium battery of the present invention.
【図４】本発明の製造方法によって製造された負極板の
斜視図である。FIG. 4 is a perspective view of a negative electrode plate manufactured by the manufacturing method of the present invention.
【図５】従来のリチウム電池用負極板の製造方法を説明
するための図である。FIG. 5 is a diagram for explaining a conventional method for manufacturing a negative electrode plate for a lithium battery.
【図６】従来の製造方法によって製造された負極板の斜
視図である。FIG. 6 is a perspective view of a negative electrode plate manufactured by a conventional manufacturing method.
１ リチウムシート ２ 固定部 １０ 集電体 1 Lithium sheet 2 Fixed part 10 Current collector
Claims (1)
リチウムシートを折り曲げて前記集電体を挟んだ後、前
記リチウムシートの一部を前記集電体にスポット状に固
定した後、全面を圧着して負極板とすることを特徴とす
るリチウム電池用負極板の製造方法。1. After disposing a current collector on a lithium sheet, bending the lithium sheet to sandwich the current collector, and fixing a part of the lithium sheet to the current collector in a spot shape, A method for producing a negative electrode plate for a lithium battery, which comprises pressing the entire surface to form a negative electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25476693A JPH0785865A (en) | 1993-09-16 | 1993-09-16 | Manufacture of lithium battery negative electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25476693A JPH0785865A (en) | 1993-09-16 | 1993-09-16 | Manufacture of lithium battery negative electrode plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0785865A true JPH0785865A (en) | 1995-03-31 |
Family
ID=17269589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25476693A Pending JPH0785865A (en) | 1993-09-16 | 1993-09-16 | Manufacture of lithium battery negative electrode plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0785865A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7629077B2 (en) | 2004-02-26 | 2009-12-08 | Qinetiq Limited | Pouch cell construction |
| EP3312926A4 (en) * | 2016-02-24 | 2018-09-26 | LG Chem, Ltd. | Electrode assembly for lithium secondary battery, and lithium secondary battery and battery module including same |
| JP2019036419A (en) * | 2017-08-10 | 2019-03-07 | 株式会社豊田自動織機 | Crimping device and crimped body manufacturing method |
| CN114156554A (en) * | 2021-12-09 | 2022-03-08 | 湖南立方新能源科技有限责任公司 | Silicon-doped lithium-supplement negative plate, preparation method thereof and lithium ion battery |
-
1993
- 1993-09-16 JP JP25476693A patent/JPH0785865A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7629077B2 (en) | 2004-02-26 | 2009-12-08 | Qinetiq Limited | Pouch cell construction |
| EP3312926A4 (en) * | 2016-02-24 | 2018-09-26 | LG Chem, Ltd. | Electrode assembly for lithium secondary battery, and lithium secondary battery and battery module including same |
| US11024886B2 (en) | 2016-02-24 | 2021-06-01 | Lg Chem, Ltd. | Electrode assembly having plurality of lithium metal sheets or lithium alloy sheets for lithium secondary battery, and lithium secondary battery and battery module including same |
| JP2019036419A (en) * | 2017-08-10 | 2019-03-07 | 株式会社豊田自動織機 | Crimping device and crimped body manufacturing method |
| CN114156554A (en) * | 2021-12-09 | 2022-03-08 | 湖南立方新能源科技有限责任公司 | Silicon-doped lithium-supplement negative plate, preparation method thereof and lithium ion battery |
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