JPH01154465A - Cylindrical lithium battery - Google Patents
Cylindrical lithium batteryInfo
- Publication number
- JPH01154465A JPH01154465A JP31269487A JP31269487A JPH01154465A JP H01154465 A JPH01154465 A JP H01154465A JP 31269487 A JP31269487 A JP 31269487A JP 31269487 A JP31269487 A JP 31269487A JP H01154465 A JPH01154465 A JP H01154465A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- separator
- insulating layer
- positive electrode
- thin metal
- 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 16
- 229910052744 lithium Inorganic materials 0.000 title claims description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 14
- 239000002390 adhesive tape Substances 0.000 claims abstract description 5
- 239000003792 electrolyte Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- -1 polypropylene Polymers 0.000 abstract description 7
- 239000007774 positive electrode material Substances 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000004743 Polypropylene Substances 0.000 abstract description 5
- 229920001155 polypropylene Polymers 0.000 abstract description 5
- 229920001296 polysiloxane Polymers 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920000784 Nomex Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FBDMJGHBCPNRGF-UHFFFAOYSA-M [OH-].[Li+].[O-2].[Mn+2] Chemical compound [OH-].[Li+].[O-2].[Mn+2] FBDMJGHBCPNRGF-UHFFFAOYSA-M 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000004763 nomex Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding 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
- 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、渦巻状電極群の負極を改良した円筒形リチ
ウム電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cylindrical lithium battery with an improved negative electrode of a spiral electrode group.
［従来の技術］
小形軽量で、しかも高密度エネルギー電池の要求から、
負極板にリチウムを用い電解液に非水電解液を使用した
円筒形リチウム電池が注目されている。[Conventional technology] Due to the demand for small, lightweight, and high-density energy batteries,
Cylindrical lithium batteries that use lithium for the negative electrode plate and nonaqueous electrolyte for the electrolyte are attracting attention.
従来、この種の円筒形成池には長尺状の正負両極板の間
１；セパレータを介在させ、これを渦巻状に巻回した構
造の渦巻状電極群が用いられている。Conventionally, in this type of cylindrical pond, a spiral electrode group having a structure in which a separator is interposed between long positive and negative electrode plates and the separator is wound spirally is used.
渦巻状電極群を製作するにあたって、割ピン状などの形
状をなした巻回芯体を用い、巻回後この巻回芯体を取り
去り、次の工程で集電リードを正負極端子に溶接する工
程のものがあった。このような工程によると、巻回芯体
を抜きとったあとの電極群に無駄なスペースを生じ、ま
た製造工程も複雑であったが、最近では一層の小形化、
炸薬の合理化を計るため巻回芯体を兼ねる東電俸を用い
て′成極群を巻回するとともに、負極板の最外周端に金
属薄板を駅付けで、この金属薄板により外周部を覆い電
極群を負極端子を兼ねる電池容器に挿入したとき、この
金属薄板が電池容器の内壁全体に接触して通電し、集電
リードの溶接作業を省略する技術がとられるようになっ
た。In manufacturing the spiral electrode group, a wound core shaped like a split pin is used, and after winding, the wound core is removed and the current collecting leads are welded to the positive and negative terminals in the next step. There was something about the process. Such a process resulted in wasted space in the electrode group after the wound core was removed, and the manufacturing process was also complicated, but in recent years, there have been advances in miniaturization and
In order to rationalize the explosive charge, the polarization group is wound using a TEPCO wire that also serves as a winding core, and a thin metal plate is attached to the outermost edge of the negative electrode plate, and the outer circumference is covered with this thin metal plate and the electrode is When the group is inserted into a battery container which also serves as a negative electrode terminal, this thin metal plate comes into contact with the entire inner wall of the battery container and conducts electricity, thereby omitting the welding work of the current collection lead.
この種の技術に属するもので、正負極板が網目構造の金
属溝＃１基板に夫々正極活物質講属リチウムを担持させ
る構成のものが実開昭５８−１３４８６３号公報に、ま
た負極板側の体積効率を向上させるため、正極板側に巻
回芯体を兼ねろ集電棒を取つけ、負極板となる金属リチ
ウムの一端に直接金属薄板を取つけた構造のものが特開
昭６２−３５４６０号公報にそれぞれ開示されでいる。A technology belonging to this type of technology is disclosed in Japanese Utility Model Application Publication No. 58-134863, in which positive and negative electrode plates each support lithium as a positive electrode active material on a mesh-structured metal groove #1 substrate. In order to improve the volumetric efficiency of the electrode, a current collector rod that also serves as a winding core is attached to the positive electrode plate, and a thin metal plate is attached directly to one end of metallic lithium, which will serve as the negative electrode plate. Each of these is disclosed in Japanese Patent No. 35460.
［発明が解決しようとする問題点コ
上記したように負極板の婦外周端に金属薄板を設けた電
極群を巻回した場合、正極板の巻回終端部がセパレータ
を介して全国薄板と対向した位置ヲこぐる場合がある。[Problems to be Solved by the Invention] When an electrode group in which a thin metal plate is provided on the outer peripheral edge of the negative electrode plate is wound as described above, the winding end of the positive electrode plate faces the thin metal plate through the separator. There are cases where the robot moves around the same position.
このような場合には正極板の端部は、正極板の外１ｕ１
１に１〆らうとする反撥力により、セパレータを介しで
強く金属薄板に押つけるためセパレータをつき通しで、
正極活物質の合剤やこの正極活物質を担持させている金
属導電基板が金ｋｊＡ薄板に接触して、内部短絡を起こ
し、製品歩留りを悪（したり、寿命を短かくさせる問題
があった。In such a case, the end of the positive electrode plate should be placed 1u1 outside the positive electrode plate.
Due to the repulsive force of 1 to 1, the separator is pushed through the separator to force it against the thin metal plate.
There was a problem that the positive electrode active material mixture and the metal conductive substrate supporting the positive electrode active material came into contact with the gold KJA thin plate, causing an internal short circuit, resulting in poor product yield and shortened lifespan. .
この発明はこのような問題点を解決するためになされた
もので、内部短絡を生じることがなく歩留りが＾く信頼
性を向上した円筒形リチウム電池、池を提供することを
目的、としでいる。This invention was made to solve these problems, and its purpose is to provide a cylindrical lithium battery that does not cause internal short circuits, has a low yield, and has improved reliability. .
［問題点を解決するための手段１
この発明は長尺状の正極板と、長尺状でかつ巻回端部（
″−金属薄板を添着させた口横版との間にセパレータを
介在させ、前記金属薄板が最外周部を憶うように渦巻状
に巻回して構成した渦巻状電極群を電解液とともに電池
容器内に収納した円筒形リチウム電池において、前記金
稙薄板の内周面に絶縁層を設けることを特徴としでいる
。[Means for Solving the Problems 1] The present invention includes a long positive electrode plate, a long positive electrode plate, and a winding end portion (
''- A separator is interposed between a horizontal plate to which a thin metal plate is attached, and a spiral electrode group is formed by winding the metal thin plate in a spiral shape so that the outermost part is included in the battery container together with an electrolyte. The cylindrical lithium battery housed in the cylindrical lithium battery is characterized in that an insulating layer is provided on the inner peripheral surface of the metal thin plate.
［作 用コ
上記したように、負極板の巻１１終端部に添４された金
鳴薄板の内周面、つまりセパレータを介して正極板に対
向する面に電気的な絶縁層を設（りることにより、例え
ば正極板の外側に戻ううとする反撥力で正極板終端部の
金属導電基板やモスへ活物質がセパレータをつき通しで
も、この絶縁、１−に守られて短絡事故を防ぐことがで
きる。[Function] As described above, an electrically insulating layer is provided on the inner circumferential surface of the metal thin plate attached to the end of winding 11 of the negative electrode plate, that is, the surface facing the positive electrode plate with the separator interposed therebetween. By doing so, for example, even if the active material penetrates the separator into the metal conductive substrate or moss at the end of the positive electrode plate due to the repulsive force that tries to return to the outside of the positive electrode plate, it is protected by this insulation and prevents short circuit accidents. be able to.
［作 用コ
上記したように、負極板の巻回終端部に添着された金属
薄板の内周面、つまりセパレータを介して正極板に対向
する面に電気的な絶縁層を設けることにより、例えば正
極板の外側に戻ろうとする反撥力で正極板終端部の金属
導え基板や正極活物質がセパレータをつき通しでも、こ
の絶縁＋（４に守られて短絡事故を防ぐことができる。[Function] As described above, by providing an electrically insulating layer on the inner circumferential surface of the thin metal plate attached to the end of the winding of the negative electrode plate, that is, on the surface facing the positive electrode plate with the separator interposed therebetween, for example, Even if the metal conductive substrate or positive electrode active material at the end of the positive electrode plate pierces the separator due to the repulsive force that tries to return to the outside of the positive electrode plate, this insulation +(4) protects it and prevents short circuit accidents.
［実施例］
以ド図面を参照してこの発明の一実施例を説明する。第
１図はこの発明を外径１６誘罵、高さ３３關の円筒形二
酸化マンガン・リチウム電池１こ構成した実施例のｆｊ
１断面図で、第２図は同実施例の電極群の巻回終端部附
近を拡大して示した＋７Ｉｊ図である。図・Ｐ、 １
は負極端子を兼ねる電池容器で、この容器１の中に渦巻
状′１極＃２が収納されている。この電極群２はステン
レス製の正極ｉｔ棒３を巻回芯体とし、正極活物質およ
びこの活物質を担持するステンレス製の金属導電基板と
よりなる正極板４と負極活物質としての金属リチウムよ
りなる負極板５をボリグロピレン不織布からなるセパレ
ータ６を介在５させ渦巻状に巻回した構成のものである
。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows an embodiment of this invention in which one cylindrical manganese dioxide lithium battery with an outer diameter of 16 mm and a height of 33 mm is constructed.
FIG. 2 is a +7Ij diagram showing an enlarged view of the vicinity of the end of the winding of the electrode group of the same embodiment. Figure P, 1
1 is a battery container which also serves as a negative electrode terminal, and a spiral 1 pole #2 is housed in this container 1. This electrode group 2 has a stainless steel positive electrode IT rod 3 as a wound core, a positive electrode plate 4 consisting of a positive electrode active material and a stainless steel metal conductive substrate supporting this active material, and metal lithium as a negative electrode active material. The negative electrode plate 5 is spirally wound with a separator 6 made of polyglopyrene nonwoven fabric interposed therebetween.
なお、セパレータ６には例えば炭酸プロピレンと１．２
−ジメト牛シエタンのイ昆合液に過塩素面リチウムを醪
解した電解液が含浸されている。Note that the separator 6 contains, for example, propylene carbonate and 1.2
- An electrolytic solution containing perchlorated lithium is impregnated into a mixture of dimethod beef sietan.
第２図は渦巻状１１Ｌ極群２の外周部を示す横断面図で
負極板５の巻回終端部５ａζこは、５ＵＳ３０４のステ
ンレスからなる金に薄板７が添着されでおり、渦巻状′
１極詳２の最外周を覆うように配置ｌされでいて渦巻状
電極ＩＩ ２が１に池谷器１（こ収納されたときこの金
属薄籾７が電池容器１の内壁に接触し℃電気的接続が泪
られるようになっている。８ａ、８ｂはポリプロヒレン
製の絶縁板で電池容器１と電極群２きの間を絶卜しでお
り、また′電池容器１の開口部は、正極端子９を備えた
合成樹脂製の封口体１０で密閉されている。なお、正極
端子９と正極集電棒３との間は図示しないリード線によ
り接続されている。FIG. 2 is a cross-sectional view showing the outer periphery of the spiral 11L pole group 2. The winding end portion 5aζ of the negative electrode plate 5 has a thin plate 7 attached to gold made of 5US304 stainless steel.
1. The spiral electrode II 2 is arranged so as to cover the outermost periphery of the battery container 1, and the spiral electrode II 2 is placed on the Iketani device 1. 8a and 8b are polypropylene insulating plates that isolate the gap between the battery container 1 and the electrode group 2, and the opening of the battery container 1 is connected to the positive terminal 9. The positive electrode terminal 9 and the positive current collector rod 3 are connected by a lead wire (not shown).
このようζこ構成されたリチウム電池においてこの実施
例では第２図に示すようζこ、金属薄板７の内周面、つ
まりセパレータ６を介して正極板４（こ対向する面に、
基材がポリプロピレン、粘着材がシリコン系粘着材から
なる厚さ１００μｍの精精テープを貼着１も〕とにより
絶縁層１１が形成されている。In this embodiment of the lithium battery having such a structure, as shown in FIG.
An insulating layer 11 is formed by pasting a 100 μm thick precision tape made of polypropylene as a base material and a silicon adhesive as an adhesive material.
上記のように電池を構成することにより、巻回された正
極板４の終端部４ａが外側に戻らうとする反撥力や放電
進行にともなう正極合剤の膨張力により、４１！ｌ基板
や正極活物質がセパレータ６をつき破ることがあっても
絶縁層１１によって、直接金属薄板７に接触することを
防ぎ内部短絡を防止できる。By configuring the battery as described above, 41! Even if the substrate or positive electrode active material breaks through the separator 6, the insulating layer 11 prevents it from coming into direct contact with the thin metal plate 7, thereby preventing internal short circuits.
発明の効果を確認するため、この実施例による電池Ａと
絶縁層１１を設けていない金属薄板７を用いた以外はす
べて実施例Ａと同様な構成の従来の電池Ｂを夫々１００
個ずつ試作し、製造工程上の歩留りと、良品として組立
られな電池ｌこついては放電試験を行ない両者を比較し
た。その結果を夫々第１表、第２表および第３図に示す
。なお放電試験は２０℃において１０００抵抗に対する
連続放心試験とした。In order to confirm the effects of the invention, 100 batteries were each used of battery A according to this embodiment and conventional battery B having the same structure as embodiment A except that the metal thin plate 7 without the insulating layer 11 was used.
Prototypes were made one by one, and the yield in the manufacturing process was checked, and if the batteries were not assembled as good, a discharge test was conducted and the two were compared. The results are shown in Table 1, Table 2, and Figure 3, respectively. The discharge test was a continuous eccentric test with a resistance of 1000 at 20°C.
第 １ 嵌
第 ２ 表
第１表でわかる通り、従来例Ｂでは組立で工程における
短絡事故が多く、歩留りが６１％であったに対し、実施
例Ａでは歩留りが１００％であり、著しく改善されたこ
とが認められる。As can be seen from Table 1, in Conventional Example B, there were many short-circuit accidents during the assembly process, and the yield was 61%, whereas in Example A, the yield was 100%, which was a significant improvement. It is recognized that
また第２表によれば、従来例Ｂでは放電途中で′電圧落
ちがあるのに対して、実施例Ａではまったくそのような
現像はみられなかった。この電圧落ちは組立て当初は問
題がなかったが、放電の進行にともない正極合剤が膨張
し、より大きな圧力が正極板４の終端部４ａにか−り短
絡したためと考えられる。第３図は実施例Ａと放電途中
で電圧落ちした従来例Ｂの代表的な放電曲線である。Further, according to Table 2, while in Conventional Example B there was a voltage drop during discharge, in Example A no such development was observed. This voltage drop was not a problem at the beginning of assembly, but as the discharge progressed, the positive electrode mixture expanded and it is thought that greater pressure caused a short circuit to the terminal end 4a of the positive electrode plate 4. FIG. 3 shows typical discharge curves of Example A and Conventional Example B in which the voltage dropped during discharge.
この実施例では前記したように絶縁層１１を形成するの
ｌこ、基材がポリプロピレンで粘着材がシリコン系の粘
着テープを使用したが、電気絶縁性が良く０、機械的強
度が十分で、ｂ）つ耐溶媒性が強い材質のものであれば
同様に利用できる。例えばポリプロピレン、ポリエチレ
ン、ふっ素樹脂、ガラス、日東１気工業製のカプトン（
商品名）やデュポン社製のノーメックス（商品名）など
が利用できる。また粘着材としてはシリコン系、合成樹
脂系、ゴム系などの粘着材が利用できる。特にシφ
リコ系のものは電気特性、耐薬品性、耐溶媒性がよく好
ましい特性をもっている。In this embodiment, an adhesive tape whose base material is polypropylene and adhesive material is silicone was used to form the insulating layer 11 as described above, and it has good electrical insulation properties and sufficient mechanical strength. b) Any material with strong solvent resistance can be used in the same manner. For example, polypropylene, polyethylene, fluororesin, glass, Kapton manufactured by Nitto Ichiki Kogyo (
(product name) and Nomex (product name) manufactured by DuPont. Further, as the adhesive material, silicone-based, synthetic resin-based, rubber-based, and other adhesive materials can be used. In particular, silicone-based materials have favorable electrical properties, chemical resistance, and solvent resistance.
上記のように粘着テープを用いることにより絶縁層１１
の形成が容易となり、正極板の端部が当ったときの強度
や耐溶媒性を向上させることができる。By using adhesive tape as described above, the insulating layer 11
This facilitates the formation of the positive electrode plate, and improves the strength and solvent resistance when the edge of the positive electrode plate hits.
なお、この発明は上記実施例に限定されるものでなく、
要旨を変更しない範囲で種々変形して実施できる。例え
ば絶縁層１１を形成するのにこの実施例では粘着テープ
によるものを説明したが、絶縁性の塗装などでも実施で
きる。Note that this invention is not limited to the above embodiments,
Various modifications can be made without changing the gist. For example, although adhesive tape is used to form the insulating layer 11 in this embodiment, it can also be formed by insulating coating.
［発明の効果コ
上記したように金属薄板の内周面に絶ド・４５：設ける
ことにより、製造上の歩留りを向上させることができる
ので製品コストを下げ、また寿命が長く信頼性の高い円
筒形リチウム電池を提供することができる。[Effects of the invention] As mentioned above, by providing an insulator on the inner circumferential surface of a thin metal plate, it is possible to improve the manufacturing yield, thereby reducing product costs, and to create a cylinder with a long life and high reliability. lithium batteries can be provided.
第１図はこの発明の一実施例である円筒形リチウム電池
の縦断面図、第２図は同実施例の′成極群の外周部を拡
大して示した横断面図、第３図は放電試験における放電
曲線の比較図である。
１・・・電池容器 ２・・・渦巻状電極群３・・・
正極集電棒 ４・・・正極板５・・・負極板 ５
ａ・・・巻回終端部６・・・セパレータ ７・・・金
Ｍｆｉｎ８ａ、８ｂ・・・絶縁板 ９・・・正極端子
１０・・・封口体FIG. 1 is a vertical cross-sectional view of a cylindrical lithium battery according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an enlarged outer circumference of the polarization group of the same embodiment, and FIG. It is a comparison diagram of discharge curves in a discharge test. 1... Battery container 2... Spiral electrode group 3...
Positive electrode current collector rod 4... Positive electrode plate 5... Negative electrode plate 5
a... Winding end portion 6... Separator 7... Gold Mfin 8a, 8b... Insulating plate 9... Positive electrode terminal 10... Sealing body
Claims (2)
板を添着させた負極板との間に、セパレータを介在させ
、前記金属薄板が最外周部を覆うように渦巻状に巻回し
て構成した渦巻状電極群を電解液とともに電池容器内に
収納した円筒形リチウム電池において、前記金属薄板の
内周面に絶縁層を設けたことを特徴とする円筒形リチウ
ム電池。(1) A separator is interposed between a long positive electrode plate and a long negative electrode plate with a thin metal plate attached to the winding end, and the thin metal plate is spirally wound so as to cover the outermost part. A cylindrical lithium battery in which a spiral electrode group formed by winding in a shape is housed in a battery container together with an electrolyte, characterized in that an insulating layer is provided on the inner peripheral surface of the metal thin plate.
とを特徴とする特許請求の範囲第１項記載の円筒形リチ
ウム電池。(2) The cylindrical lithium battery according to claim 1, wherein the insulating layer is made of an electrically insulating adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31269487A JPH01154465A (en) | 1987-12-10 | 1987-12-10 | Cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31269487A JPH01154465A (en) | 1987-12-10 | 1987-12-10 | Cylindrical lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01154465A true JPH01154465A (en) | 1989-06-16 |
Family
ID=18032304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31269487A Pending JPH01154465A (en) | 1987-12-10 | 1987-12-10 | Cylindrical lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01154465A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239769A (en) * | 1988-03-19 | 1989-09-25 | Hitachi Maxell Ltd | Spiral lithium battery |
| JP2016122592A (en) * | 2014-12-25 | 2016-07-07 | Ｆｄｋ鳥取株式会社 | Spiral type lithium battery |
-
1987
- 1987-12-10 JP JP31269487A patent/JPH01154465A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239769A (en) * | 1988-03-19 | 1989-09-25 | Hitachi Maxell Ltd | Spiral lithium battery |
| JPH0821374B2 (en) * | 1988-03-19 | 1996-03-04 | 日立マクセル株式会社 | Spiral lithium battery |
| JP2016122592A (en) * | 2014-12-25 | 2016-07-07 | Ｆｄｋ鳥取株式会社 | Spiral type lithium battery |
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