JPS6215766A - Slim type lithium battery - Google Patents
Slim type lithium batteryInfo
- Publication number
- JPS6215766A JPS6215766A JP60154809A JP15480985A JPS6215766A JP S6215766 A JPS6215766 A JP S6215766A JP 60154809 A JP60154809 A JP 60154809A JP 15480985 A JP15480985 A JP 15480985A JP S6215766 A JPS6215766 A JP S6215766A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- lithium battery
- negative electrode
- core rod
- gasket
- 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
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000003566 sealing material Substances 0.000 claims description 6
- 239000007774 positive electrode material Substances 0.000 claims description 4
- 239000005486 organic electrolyte Substances 0.000 claims description 3
- 239000007773 negative electrode material Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000010248 power generation Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 2
- 239000002480 mineral oil Substances 0.000 abstract description 2
- 235000010446 mineral oil Nutrition 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000008151 electrolyte solution Substances 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002545 silicone oil Polymers 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、細形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 the Invention The present invention relates to improvements in slim lithium batteries.
従来の技術
近年エレクトロニクスの進歩に伴って、いわゆるコード
レス機器の小型軽量化が進み、それに使用される電池も
小型軽量化等の要望が高まり、負極活物質にリチウム金
属等の軽金属を用いた、いわゆる有機電解質電池が開発
された。またその電池形状も円筒形をはじめボタン形や
扁平形、電池の外径寸法が約２〜５Ｉ！１１１という細
形もある。Conventional technology In recent years, with advances in electronics, so-called cordless devices have become smaller and lighter, and the batteries used in these devices have also been required to be smaller and lighter. Organic electrolyte batteries were developed. In addition, the battery shapes include cylindrical, button, and flat shapes, and the outer diameter of the battery is approximately 2 to 5 inches! There is also a narrower version called 111.
このような細形電池の内部構造は第１図に示すように、
いわゆるインサイドアウト構造になっている。第１図に
おいて、１は集電・体１ａの片面に正極活物質を、例え
ばポリテトラフルオロエチレン等の結着剤を用いて圧縮
形成あるいはローラー圧延によって構成した正極板で、
集電体１ａの露出している側を正極ケース６０対向面側
にして円筒状に巻回し、次にアルミニウムからなる正極
ケース６へ嵌挿し、必要があれば正極活物質層と正極ケ
ース６との接触をより高めるために再成型しである。２
はリチウム金属を活物質とした負極で、負極集電体と負
極端子を兼ねたステンレス鋼からなる負極芯棒３の外周
に巻きつけたものである。The internal structure of such a thin battery is shown in Figure 1.
It has a so-called inside-out structure. In FIG. 1, reference numeral 1 denotes a positive electrode plate in which a positive electrode active material is formed on one side of a current collector body 1a by compression molding or roller rolling using a binder such as polytetrafluoroethylene.
The exposed side of the current collector 1a faces the positive electrode case 60 and is wound into a cylindrical shape. Next, the current collector 1a is inserted into the positive electrode case 6 made of aluminum, and if necessary, the positive electrode active material layer and the positive electrode case 6 are connected. It has been remolded to improve contact. 2
is a negative electrode using lithium metal as an active material, which is wound around the outer periphery of a negative electrode core rod 3 made of stainless steel that serves both as a negative electrode current collector and a negative electrode terminal.
４は負極２を包被したセパレータ、５はゴム製ガスケッ
ト、７はプロピレンカーボネイト、ジメトキシエタン、
γ−ブチロラクトン等を単体あるいは混合溶液とし、こ
れにホウフッ化リチウムを溶解した有機電解液である。4 is a separator covering the negative electrode 2, 5 is a rubber gasket, 7 is propylene carbonate, dimethoxyethane,
It is an organic electrolyte solution in which γ-butyrolactone or the like is used alone or as a mixed solution, and lithium fluoroborate is dissolved therein.
発明が解決しようとする問題点
このような細形電池を高温加速保存あるいは室温による
長期保存した場合、電解液がシール部であるガスケット
５と負極芯枠３とのスキ間から漏出し、耐漏液性能が著
しく低下するという欠点があった。Problems to be Solved by the Invention When such a thin battery is stored at high temperature for a long period of time or stored at room temperature for a long period of time, the electrolyte leaks from the gap between the gasket 5, which is the sealing part, and the negative electrode core frame 3, resulting in leakage resistance. The drawback was that the performance deteriorated significantly.
本発明は上記問題点を解決するもので、耐漏液性能の安
定化を図ることのできる細形リチウム電池を提供するこ
とを目的とするものである。The present invention solves the above-mentioned problems, and aims to provide a thin lithium battery that can stabilize leakage resistance.
問題点を解決するための手段
上記問題点を解決するために、本発明は、細形リチウム
電池の正極ケース開口のシール部を形成するガスケット
と負極芯枠とのスキ間にシール材を塗布してシール材層
を形成したものである。Means for Solving the Problems In order to solve the above problems, the present invention applies a sealing material to the gap between the gasket and the negative electrode core frame that form the sealing part of the positive electrode case opening of a small lithium battery. A sealing material layer is formed using the following steps.
作用
この構成により、電解液がガスケットと負極芯枠とのス
キ間から漏出することを防止でき、耐漏液性能の優れた
電池を得ることができる。Function: With this configuration, it is possible to prevent the electrolyte from leaking from the gap between the gasket and the negative electrode core frame, and it is possible to obtain a battery with excellent leakage resistance.
実施例
以下本発明の一実施例を第１図に示す細形リチウム電池
〈外径４ ｎ＋ｍ、高さ３５ｍｍのフッ化炭素−リチウ
ム電池）を用いて説明する。この電池の封口部で正極外
部端子面を形成する正極ケース６のシール部分先端より
はみ出したガスケット５の穴部と、中央端子を形成する
ステンレス鋼製負極芯棒３との周囲に第２図のように間
隙ａが発生する。EXAMPLE An example of the present invention will be described below using a narrow lithium battery (a fluorocarbon-lithium battery with an outer diameter of 4 n+m and a height of 35 mm) shown in FIG. The hole in the gasket 5 that protrudes from the tip of the sealed part of the positive electrode case 6, which forms the positive external terminal surface at the sealing part of this battery, and the stainless steel negative electrode core rod 3, which forms the center terminal, as shown in Figure 2. A gap a is generated as shown in FIG.
その間隙ａにシール８（例えばピッチを主成分とした不
乾性鉱物油等の混合剤）を０．５〜１ 、０ｍｇ均一に
塗布した。なおシール材はシリコーンオイル等でもよい
。このように間隙にシール材層を形成した本発明品とシ
ール材層のない従来品との保存による耐漏液性試験結果
を示すと次表のようになる。0.5 to 1.0 mg of seal 8 (for example, a mixture of pitch-based non-drying mineral oil, etc.) was uniformly applied to the gap a. Note that the sealing material may be silicone oil or the like. The following table shows the leakage resistance test results of the product of the present invention in which a sealing material layer is formed in the gap and the conventional product without a sealing material layer during storage.
この表より明らかなように本発明品は従来品と比較する
と、明らかに耐漏液性が良くなっている。As is clear from this table, the product of the present invention clearly has better leakage resistance than the conventional product.
発明の効果
以上のように、本発明によれば、耐漏液性能に優れ信頼
性の高い電池を製造することが可能である。Effects of the Invention As described above, according to the present invention, it is possible to manufacture a highly reliable battery with excellent leakage resistance.
第１図は細形リチウム電池の断面図、第２図はその要部
の拡大断面図である。
１・・・正極、１ａ・・・正極集合電体、２・・・負極
、３・・・負極芯枠、４・・・セパレータ、５・・・ガ
スケット、６・・・正極ケース、７・・・電解液、８・
・・シール材代理人 森 本 義 弘
第１図
１−−一正陽
２・−ｐ極
Ｊ−＊極茫捺
５−・・力゛スグット
Ｊ−−一正祠１炉スFIG. 1 is a cross-sectional view of a small lithium battery, and FIG. 2 is an enlarged cross-sectional view of its main parts. DESCRIPTION OF SYMBOLS 1... Positive electrode, 1a... Positive electrode assembly, 2... Negative electrode, 3... Negative electrode core frame, 4... Separator, 5... Gasket, 6... Positive electrode case, 7...・Electrolyte, 8・
...Seal material agent Yoshihiro Morimoto 1 Figure 1--Isshoyo 2-P pole J-*Gokusakuji 5--Force Sgood J--Issho shrine 1 Furnace
Claims (1)
活物質とからなる発電要素と、前記正極活物質を接触さ
せてなる正極ケースを有し、前記正極ケースの開口を前
記負極活物質と接する負極芯棒とガスケットにより密封
してなる電池であつて、前記ガスケットと負極芯棒との
間隙にシール材層を形成した細形リチウム電池。1. A power generation element made of a negative electrode active material made of a light metal, an organic electrolyte, and a positive electrode active material, and a positive electrode case made of the positive electrode active material in contact with each other, and the opening of the positive electrode case is connected to the negative electrode active material. A slender lithium battery that is sealed by a gasket and a negative electrode core rod in contact with the lithium battery, the battery having a sealing material layer formed in the gap between the gasket and the negative electrode core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60154809A JPS6215766A (en) | 1985-07-12 | 1985-07-12 | Slim type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60154809A JPS6215766A (en) | 1985-07-12 | 1985-07-12 | Slim type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6215766A true JPS6215766A (en) | 1987-01-24 |
Family
ID=15592352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60154809A Pending JPS6215766A (en) | 1985-07-12 | 1985-07-12 | Slim type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6215766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008171821A (en) * | 1994-11-10 | 2008-07-24 | Atto Instruments Inc | Method and apparatus for high-speed control of lamp intensity and/or wavelength and for high-speed optical data transmission |
| CN110190207A (en) * | 2019-06-11 | 2019-08-30 | 珠海格力电器股份有限公司 | Soft package battery and preparation method thereof |
-
1985
- 1985-07-12 JP JP60154809A patent/JPS6215766A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008171821A (en) * | 1994-11-10 | 2008-07-24 | Atto Instruments Inc | Method and apparatus for high-speed control of lamp intensity and/or wavelength and for high-speed optical data transmission |
| CN110190207A (en) * | 2019-06-11 | 2019-08-30 | 珠海格力电器股份有限公司 | Soft package battery and preparation method thereof |
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