JPS63148555A - Slender cylindrical lithium cell - Google Patents
Slender cylindrical lithium cellInfo
- Publication number
- JPS63148555A JPS63148555A JP29398486A JP29398486A JPS63148555A JP S63148555 A JPS63148555 A JP S63148555A JP 29398486 A JP29398486 A JP 29398486A JP 29398486 A JP29398486 A JP 29398486A JP S63148555 A JPS63148555 A JP S63148555A
- Authority
- JP
- Japan
- Prior art keywords
- expanded metal
- case
- bending strength
- positive electrode
- negative electrode
- 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 description 12
- 229910052744 lithium Inorganic materials 0.000 title claims description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000005486 organic electrolyte Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 10
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 208000028659 discharge Diseases 0.000 abstract 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000237502 Ostreidae Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 235000020636 oyster Nutrition 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/74—Meshes or woven material; Expanded metal
- H01M4/745—Expanded metal
-
- 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
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、厚みが０．０５ｍｍのエキスバンドメタルか
らなる電極集電体に正極合剤を充填加圧した極板を用い
た細形円筒リチウム電池の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a narrow cylindrical lithium battery using an electrode plate in which an electrode current collector made of expanded metal with a thickness of 0.05 mm is filled with a positive electrode mixture and pressurized. This is related to the improvement of.
従来の技術
従来この種の細形円筒リチウム電池は例えば夜釣浮子用
或いは竿先の発光用電源として最近使用されている。し
かしこの細形円筒リチウム電池は極端に使用される部品
が小さく、且つ高い精度が要求されその構成において難
かしい点が多い。BACKGROUND OF THE INVENTION This type of narrow cylindrical lithium batteries have recently been used, for example, as a power source for night fishing floats or for illumination at the tip of a fishing rod. However, this narrow cylindrical lithium battery uses extremely small parts, requires high precision, and has many difficult points in its construction.
第２図ａ、ｂ、ｏ、ｌを用いてその作成工程を説明する
。The manufacturing process will be explained using FIG. 2 a, b, o, and l.
ａは負極組立体で次の構成より成り立っている。A is a negative electrode assembly consisting of the following configuration.
まず負極集電体兼端子をなす金属８棒１に柔軟な短冊状
のリチウム負極２をパイプ状に巻、きつけ、この負極外
側にさらにポリフロピレン繊維の不織布より成るセパレ
ータ３を巻きつけて負極組立体を構成している。次にｂ
は正極組立体で次の構成より成り立っている。正極端子
を兼ねたアルミニウム製の細長い有底円筒状のケース４
内に予め厚みが０．１１１１１１１を有するエキスバン
ドメタル５にフッ化炭素、或いは二酸化マンガンを主成
分とする正極合剤６を充填加圧させ帯状にした後に長方
形に打抜いて円筒状とする。これをケース４．の内周壁
部に介在させ、正極組立体を構成している。尚エキスバ
ンドメタル６と正極合剤６とが一体化された状態を極板
７と呼ぶ。ａで構成した負極組立体をｂの正極組立体の
極板７の内周壁部に収納すると、次の問題が生じていた
。First, a flexible strip-shaped lithium negative electrode 2 is wound and attached in a pipe shape around a metal 8 rod 1 that serves as a negative electrode current collector and terminal, and a separator 3 made of a nonwoven fabric of polypropylene fibers is further wrapped around the outside of this negative electrode to complete the negative electrode assembly. It consists of then b
is a positive electrode assembly consisting of the following configuration. An elongated aluminum cylindrical case 4 with a bottom that also serves as a positive terminal
An expanded metal 5 having a thickness of 0.1111111 in advance is filled with a positive electrode mixture 6 containing fluorocarbon or manganese dioxide as a main component and pressurized to form a band shape, and then punched into a rectangular shape to form a cylindrical shape. This is case 4. The positive electrode assembly is constructed by interposing the positive electrode assembly on the inner circumferential wall of the positive electrode assembly. Note that the state in which the expanded band metal 6 and the positive electrode mixture 6 are integrated is called an electrode plate 7. When the negative electrode assembly configured in a was housed in the inner circumferential wall of the electrode plate 7 of the positive electrode assembly in b, the following problem occurred.
その１点目として、ケース底部にカキ落された合剤６−
１が存在するため、負極組立体の収納が不完全となり、
第２図ｄに示すようにガスケット８と金属棒１が極端に
外部に漏出し、本来あるべき位置９にガスケット８が存
在しないため、耐漏液の信頼性が極端に悪くなっ°てい
る。即ち板厚０．１ｍ＋のエキスバンドメタル５を用い
た極板７は強度が大きいため、Ｃに示すようにケース４
の内周壁部に均一に密着させることができない。そのた
め回転を与えたドリルを極板７の内面部に挿入し円筒状
になるように加工している。その加工時ドリルがケース
中に正常に挿入されず傾斜して挿入された場合、ｂに示
す正極合剤６がカキ落とされ、ケース４の底部に合剤６
−１として存在し、負極組立体の収納が不完全となって
いた。The first point is that the mixture 6-
1, the storage of the negative electrode assembly is incomplete.
As shown in FIG. 2d, the gasket 8 and the metal rod 1 are leaking to the outside, and the gasket 8 is not in the position 9 where it should be, so the reliability of leakage resistance is extremely poor. In other words, since the electrode plate 7 made of expanded metal 5 with a plate thickness of 0.1 m+ has a high strength, case 4 is used as shown in C.
cannot be made to adhere uniformly to the inner circumferential wall of the For this reason, a rotating drill is inserted into the inner surface of the electrode plate 7 to form it into a cylindrical shape. If the drill is not inserted into the case properly during processing and is inserted at an angle, the positive electrode mixture 6 shown in b will be dropped and the mixture 6 will be deposited at the bottom of the case 4.
-1, and the negative electrode assembly was incompletely stored.
２点目として、エキスバンドメタル６が、カキ落とし部
分では第２図すの６−１で示すように内方に露出してい
るため、負極組立体を挿入するときセパレータ３がエキ
スバンドメタル５の一部にふれてやぶられ、内部短絡に
よる放電異状を発生している。Second, since the expanded metal 6 is exposed inward at the oyster removal part as shown at 6-1 in Figure 2, the separator 3 does not touch the expanded metal 5 when inserting the negative electrode assembly. A part of the battery was touched and damaged, causing an abnormal discharge due to an internal short circuit.
発明が解決しようとする問題点
このような従来の構成では、厚みが０．１圏のエキスバ
ンドメタルを用いた極板は折曲げ強度が大きいため、ケ
ース内周壁部に円筒状に作成することが固難なため耐漏
液性及び放電時に於ける信頼性が極端に悪くなる。Problems to be Solved by the Invention In such a conventional configuration, the electrode plate using expanded metal with a thickness of around 0.1 has high bending strength, so it is necessary to create a cylindrical shape on the inner peripheral wall of the case. Because of this difficulty, leakage resistance and reliability during discharge are extremely poor.
本発明は、上記のような問題点を解消するため折曲げ強
度を半減した厚みがＯ，ＯＳ閣のエキスバンドメタルを
用いた電池用極板を使用し、ケース内周壁部に均一に密
着させ負極組立体の挿入を容易に行ない、耐漏液性の向
上及び放電性能に優れた細形円筒電池を提供することを
目的とする。In order to solve the above-mentioned problems, the present invention uses a battery electrode plate made of expanded metal of OS Kaku, which has a thickness that is half the bending strength, and is made to adhere uniformly to the inner circumferential wall of the case. It is an object of the present invention to provide a narrow cylindrical battery that allows easy insertion of a negative electrode assembly, has improved leakage resistance, and has excellent discharge performance.
問題点を解決するための手段
この問題点を解決するため、本発明は折曲げ強度を半減
化した厚みが０．０５ ｍのエキスバンドメタルを用い
た電池用極板を作成し、長方形に打抜いた後円筒状とし
、その後、ケース内周壁部に円筒状に密着させるもので
ある。Means for Solving the Problem In order to solve this problem, the present invention creates a battery electrode plate using expanded metal with a thickness of 0.05 m, which reduces the bending strength by half, and stamps it into a rectangular shape. After being pulled out, it is made into a cylindrical shape, and then it is brought into close contact with the inner circumferential wall of the case in a cylindrical shape.
作用
この構成によれば、厚みが０．０５ ｒｎａを有するエ
キスバンドメタルを用いることにより、従来と同量の正
極合剤を充填加圧すれば厚みに於いて約２５％薄く作成
が可能となり、合せて折曲げ強度の減少化が図れる。そ
のためケース内面部に円筒状に介在することが判明した
。これによりドリルを用いた極板内周部の加工廃止によ
りケース底部への合剤欠は落ち、或いはエキスバンドメ
タルの内部露出に伴なうセパレータやぶれもなく、負極
組立体の収納が容易で且つ高さバラツキのない構成を得
ることによって信頼性の高い品質を確保することができ
る。Function: According to this configuration, by using an expanded metal having a thickness of 0.05 rna, it is possible to create a material approximately 25% thinner by filling the same amount of positive electrode mixture as before and applying pressure. At the same time, the bending strength can be reduced. Therefore, it was found that it was interposed in a cylindrical shape on the inner surface of the case. This eliminates the need to process the inner periphery of the electrode plate using a drill, which eliminates the lack of mixture at the bottom of the case, and the separator does not come loose due to internal exposure of the expanded metal, making it easy to store the negative electrode assembly. By obtaining a configuration with no height variation, highly reliable quality can be ensured.
実施例
第１図は本発明の実施例による外径が２．２団、高さが
１１ 、ＯｒｒｒｒｓのＢＲ２１１電池の半断面図を示
す。第１図に示すごとく、負極集電体兼端子をなす金属
８棒１に柔軟な短冊状のリチウム負極２をパイプ状に巻
つけ、この負極の外側にさらにポリエチレン繊維を不織
布とするセパレータ３を巻つけ負極組立体を構成する。EXAMPLE FIG. 1 shows a half cross-sectional view of a BR211 battery having an outer diameter of 2.2 mm, a height of 11 mm, and Orrrrs according to an embodiment of the present invention. As shown in Fig. 1, a flexible strip-shaped lithium negative electrode 2 is wound in a pipe shape around a metal 8 rod 1 that serves as a negative electrode current collector and terminal, and a separator 3 made of non-woven polyethylene fiber is further placed on the outside of this negative electrode. A wound negative electrode assembly is constructed.
次に厚みが０．０５ｎａｍのエキスバンドメタル５にフ
ッ化炭素、或いは二酸化マンガンを主成分とする正極合
剤６を充填加圧して極板７ｆｔ４ｍＸ７．５ｍに切断し
た後、パイプ状に作成する。この極板７は従来厚みと比
較し約００−０６ｒ薄く且つ折曲げ強度で約５０俤減少
となり正極端子を兼ねたアルミニュム製の細長い有底円
筒ケース４の内周壁部に介在させることにより円筒状に
密着保持することができる。そのため負極組立体が極板
７の内円筒部に確実に収納され構成することができた。Next, an expanded metal 5 having a thickness of 0.05 nm is filled with a positive electrode mixture 6 containing fluorocarbon or manganese dioxide as a main component, and then cut into a 7 ft 4 m x 7.5 m electrode plate, which is then made into a pipe shape. This electrode plate 7 is about 00-06r thinner than the conventional thickness, and its bending strength is reduced by about 50 yen, and it has a cylindrical shape by interposing it on the inner peripheral wall of the elongated bottomed cylindrical case 4 made of aluminum, which also serves as a positive electrode terminal. It can be held closely. Therefore, the negative electrode assembly could be reliably housed in the inner cylindrical portion of the electrode plate 7.
これによりケース４の開口部を内方に折曲げ封口を行な
った後、４−１の溝入後においても従来構成で問題であ
った。合剤６−１の欠は落ちや或いはエキスバンドメタ
ル５−１の内部漏出によるセパレータ３のやぶれも本発
明では皆無となり、品質が極めて安定する。This caused problems in the conventional structure even after the opening of the case 4 was bent inward and sealed, and even after the groove 4-1 was inserted. In the present invention, there is no tearing of the separator 3 due to dropout of the mixture 6-1 or internal leakage of the expanded metal 5-1, and the quality is extremely stable.
このように実施例で述べた電池ムと従来構成の電池Ｂの
評価比較を以下表１に示し、第３図に板厚０．０５１ｒ
ｒＩｎのエキスバンドメタルを用いるに至った実験結果
を示す。An evaluation comparison between the battery B described in the example and the conventional battery B is shown in Table 1 below, and FIG.
The experimental results that led to the use of rIn expanded metal are shown below.
第３図は従来の板厚０．１ ｍエキスバンドメタルの折
曲げ強度指数を１００％とし、０．０１簡単位で板厚の
差による折曲げ強度変化の実験を行なった結果を示して
いる。Figure 3 shows the results of an experiment on the change in bending strength due to a difference in plate thickness, with the bending strength index of a conventional expanded metal plate of 0.1 m thickness set at 100%. .
この実験結果より次のことが判明した。The results of this experiment revealed the following.
（１）板厚０．０４〜０．０６ ｍの範囲内では強度的
に半減し、円筒状に極板製造できる。(1) When the plate thickness is within the range of 0.04 to 0.06 m, the strength is halved and the plate can be manufactured in a cylindrical shape.
し）板厚０．０３ ｍを用いると強度的に弱くなるが、
合剤充填時に極端なムラが発生し極板製造ができない。) If a plate thickness of 0.03 m is used, the strength will be weaker, but
Extreme unevenness occurs when filling the mixture, making it impossible to manufacture electrode plates.
（３）板厚０．０７〜０．１１１Ｉ＋を用いると強度的
に大きく、円筒状に極が製造できない。(3) If a plate thickness of 0.07 to 0.111I+ is used, the strength will be large and a cylindrical pole cannot be manufactured.
以上の結果より、本発明においては一般的に大量に入手
できる板厚０．０５ ｔｒｙのエキスバンドメタルを採
用した。Based on the above results, in the present invention, expanded metal with a plate thickness of 0.05 try, which is generally available in large quantities, was used.
発明の効果
以上のように本発明によれば、ケース内面部に円筒状に
配置した電池用正極は負極組立体の収納を容易にし、信
頼性ある構成及び封口が得られ、放電性能と耐漏液性に
優れた超細形円筒リチウム電池を提供できる。Effects of the Invention As described above, according to the present invention, the battery positive electrode arranged in a cylindrical shape on the inner surface of the case facilitates storage of the negative electrode assembly, provides a reliable structure and seal, and improves discharge performance and leakage resistance. It is possible to provide an ultra-slim cylindrical lithium battery with excellent properties.
第１図は本発明における細形円筒リチウム電池の半断面
図、第２図は細形円筒リチウム電池の作成工程図、第３
図はエキスバンドメタルの板厚と強度指数との相関図で
ある。
１・・・・・・金属８棒、２・・・・・・負極、３・・
・・・・セパレータ、４・・・・・・ケース、６・・・
・・・エキスバンドメタル、６・・・・・・合剤、７・
・・・・・極板、８・・・・・・ガスケット。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名３゛
°北ノ＼°し一ター
ｇ−會籾
了−−一４石に槓
第３図
仮ｆ！−（ｒｎ町Fig. 1 is a half-sectional view of a narrow cylindrical lithium battery according to the present invention, Fig. 2 is a manufacturing process diagram of a narrow cylindrical lithium battery, and Fig. 3
The figure is a correlation diagram between the plate thickness and strength index of expanded metal. 1...8 metal rods, 2...negative electrode, 3...
...Separator, 4...Case, 6...
...exband metal, 6...mixture, 7.
...Pole plate, 8...Gasket. Name of agent: Patent attorney Toshio Nakao and one other person -(rn town
Claims (1)
成され、前記正極は合剤を集電体に充填した正極組立体
を円筒状にし、アルミニウムよりなる正極ケース内に挿
入したリチウム電池であって、前記電極集電体が板厚０
．０５ｍｍのエキスパンドメタルからなることを特徴と
した細形円筒リチウム電池。It is a lithium battery that uses lithium as a negative electrode, is composed of a positive electrode and an organic electrolyte, and the positive electrode is a cylindrical positive electrode assembly in which a current collector is filled with a mixture and inserted into a positive electrode case made of aluminum. , the electrode current collector has a plate thickness of 0
．． A narrow cylindrical lithium battery characterized by being made of 0.5mm expanded metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29398486A JPS63148555A (en) | 1986-12-10 | 1986-12-10 | Slender cylindrical lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29398486A JPS63148555A (en) | 1986-12-10 | 1986-12-10 | Slender cylindrical lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63148555A true JPS63148555A (en) | 1988-06-21 |
Family
ID=17801742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29398486A Pending JPS63148555A (en) | 1986-12-10 | 1986-12-10 | Slender cylindrical lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013038946A1 (en) * | 2011-09-14 | 2013-03-21 | 株式会社Ｇｓユアサ | Cylindrical battery |
-
1986
- 1986-12-10 JP JP29398486A patent/JPS63148555A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013038946A1 (en) * | 2011-09-14 | 2013-03-21 | 株式会社Ｇｓユアサ | Cylindrical battery |
| JPWO2013038946A1 (en) * | 2011-09-14 | 2015-03-26 | 株式会社Ｇｓユアサ | Cylindrical battery |
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