JPH02142057A - Battery - Google Patents
BatteryInfo
- Publication number
- JPH02142057A JPH02142057A JP63296447A JP29644788A JPH02142057A JP H02142057 A JPH02142057 A JP H02142057A JP 63296447 A JP63296447 A JP 63296447A JP 29644788 A JP29644788 A JP 29644788A JP H02142057 A JPH02142057 A JP H02142057A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- battery
- packing
- active material
- electric insulation
- 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
- 238000012856 packing Methods 0.000 claims abstract description 15
- 239000004743 Polypropylene Substances 0.000 claims abstract description 12
- -1 polypropylene Polymers 0.000 claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 239000005486 organic electrolyte Substances 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract 3
- 239000011149 active material Substances 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- 230000001007 puffing effect Effects 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 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 of a single cell or a single battery
- H01M50/183—Sealing members
-
- 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 of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電解液に有機溶媒を用いた非水電解液電池に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a non-aqueous electrolyte battery using an organic solvent as an electrolyte.
本発明は、負極活物質とＭｎＯ，等の酸化物からなる正
極活物質及び有機電解液を、正極端子板を兼ねる電池ケ
ースと負極端子板を兼ねる封口板及び前記電池ケースと
封口板との間に介在する電気絶縁パッキングにより密封
した非水電解液電池において、曲げ弾性率が１８０００
〜３００００Ｋｇ／−であるポリプロピレンから成形さ
れた電気絶縁パッキングを使うことにより、封止によっ
て圧縮された絶縁バンキングの圧力（反発力）を増大さ
せ、シール性の向上も図るものである。The present invention provides a method for dispersing a negative electrode active material, a positive electrode active material made of an oxide such as MnO, and an organic electrolyte between a battery case that also serves as a positive electrode terminal plate, a sealing plate that also serves as a negative electrode terminal plate, and the battery case and the sealing plate. In a non-aqueous electrolyte battery sealed with an electrically insulating packing interposed between the
By using an electrically insulating packing molded from polypropylene with a weight of ~30,000 Kg/-, the pressure (repulsion force) of the insulating banking compressed by sealing is increased and the sealing performance is also improved.
従来、非水電解液電池の電気絶縁パッキングの材料とし
てはポリプロピレンが使われていたが、通常、使われて
いるポリプロピレンは、曲げ弾性率が１００００４１７
５００Ｋｇ／ｃＪと柔らかいものであった。Conventionally, polypropylene has been used as a material for electrically insulating packing for non-aqueous electrolyte batteries, but the polypropylene normally used has a flexural modulus of 10000417.
It was soft at 500Kg/cJ.
従来のポリプロピレンからなる電気絶縁パッキングは、
柔らかいため封止されると負極封口板や電池ケースの様
な固体の表面の凹凸を埋めて密封することが出来るとい
う点では良いのだが、逆に電気絶縁パッキングが伸びた
り流れたりし易いため、封口された後の電気絶縁パッキ
ング自体の圧力（負極封目板等を押し返す反発力）が小
さくなリシール性を低下させ、耐漏液性や高温高温保存
電特が悪くなるという問題点がある。Electrical insulation packing made of conventional polypropylene is
Because it is soft, it is good in that it can fill in the unevenness of solid surfaces such as negative electrode sealing plates and battery cases and seal it, but on the other hand, electrical insulation packing tends to stretch and flow, so There is a problem in that the pressure of the electrically insulating packing itself after being sealed (the repulsive force pushing back the negative electrode sealing plate, etc.) reduces the resealability, resulting in poor leakage resistance and high-temperature storage electrical properties.
本発明は従来の問題点を解決し、耐漏液性や高温高温保
存１特の優れた電池を提供することを目的とする。It is an object of the present invention to solve the conventional problems and provide a battery with excellent leakage resistance and high temperature storage.
上記目的を達成するために本発明では、電気絶縁パッキ
ングの材料に、曲げ弾性率（ＪＩＳＫ７２０３）が１８
０００〜３００００Ｋｇ／−であるポリプロピレンを用
いることにより、耐漏易性や高温高温保存１特を向上さ
せようとしたものである。In order to achieve the above object, the present invention uses a material for electrically insulating packing that has a flexural modulus (JISK7203) of 18.
By using polypropylene having a weight of 000 to 30,000 kg/-, leak resistance and high-temperature storage characteristics are improved.
封止されると電気絶縁バンキングが圧縮され、その箇所
に電池ケース等を押し返す圧力が生じる。When sealed, the electrically insulating banking is compressed, creating pressure at that location that pushes back the battery case, etc.
この圧力が小さいとシールが不十分となり、漏液等が起
こる。この圧力はパフキングの弾性力により決まり、パ
ッキングの圧縮が可能な範囲で、弾性力が大きい程圧力
は太き（なる。又、圧縮が不可能もしくは不十分である
と弾性力が大きくとも圧力は小さくなる。従って本発明
の様に従来よりも曲げ弾性率が大きく、圧縮が可能な１
．８０００〜３００００Ｋｇ／−のポリプロピレンをパ
フキング材に用いることにより、シール性が向上される
。If this pressure is too low, sealing will be insufficient and liquid leakage will occur. This pressure is determined by the elastic force of the puffing, and within the range in which the packing can be compressed, the greater the elastic force, the greater the pressure.Also, if compression is impossible or insufficient, even if the elastic force is large, the pressure will be Therefore, as in the present invention, it has a higher bending elastic modulus than the conventional one and can be compressed.
．． By using 8,000 to 30,000 kg/- of polypropylene as the puffing material, sealing performance is improved.
（実施例〕 以下に、本発明の実施例を図面に基づいて説明する。(Example〕 Embodiments of the present invention will be described below based on the drawings.
本実施例では、曲げ弾性率が１００００〜３５０００Ｋ
ｇ／ｃｙｄのポリプロピレンからなる電気絶縁パッキン
グを用い、第１図に示すような打機電解質電池を組み立
てた。電池はリチウム電池で、サイズはＣＲ１０２５で
ある。In this example, the bending elastic modulus is 10,000 to 35,000K.
A perforated electrolyte cell as shown in FIG. 1 was assembled using an electrically insulating packing made of polypropylene with a g/cyd ratio. The battery is a lithium battery, and the size is CR1025.
第１図において、ｌは正極電池ケース、２はＭｎＱｚを
主体とした正極活物質、３はセパレータ、４は負極封口
板５内面に配設され、圧着されているＬｉを主体とする
負極活物質である６６は電気絶縁パッキングであり、正
極電池ケース１と負極封口板５の間でカシメられている
。In FIG. 1, l is a positive electrode battery case, 2 is a positive electrode active material mainly composed of MnQz, 3 is a separator, and 4 is a negative electrode active material mainly composed of Li, which is disposed and crimped on the inner surface of the negative electrode sealing plate 5. Reference numeral 66 denotes an electrically insulating packing, which is caulked between the positive electrode battery case 1 and the negative electrode sealing plate 5.
これら電池について、初期及び高温高温保存後の開路電
圧と耐漏液性を調べ、結果を第１表に示す。また、閉路
電圧は一１０℃で測定し、負倚砥抗５００Ωで５秒間放
電した時の最小値であり、高温高温の条件は温度６０℃
、湿度９０％Ｒｈである。保存期間は４０日である。耐
漏液性は６０℃と一１０℃に１時間づつ交互に保存する
プログラムを２０日間実施した後、実体顕微鏡にて漏液
の有無を調べたものである。The open circuit voltage and leakage resistance of these batteries at the initial stage and after high temperature storage were investigated, and the results are shown in Table 1. In addition, the closed circuit voltage is measured at -10℃, and is the minimum value when discharged for 5 seconds with a negative abrasive resistance of 500Ω.The high temperature condition is 60℃.
, the humidity was 90% Rh. The storage period is 40 days. The liquid leakage resistance was determined by carrying out a program of storing the sample at 60°C and -10°C for 1 hour each for 20 days, and then examining the presence or absence of liquid leakage using a stereomicroscope.
げ弾性率が１８０００〜３００００Ｋｇ／ｃＪの範囲で
高温筋ン易保存後の閉路電圧が高く、かつバラツキも小
さく優れていることが判る。また、漏液に関しても優れ
ていることが判る。It can be seen that when the elastic modulus is in the range of 18,000 to 30,000 Kg/cJ, the closed circuit voltage after high temperature storage is high and the variation is small, which is excellent. It can also be seen that it is excellent in terms of leakage.
以上のように本発明によれば、曲げ弾性率が１８０００
〜３００００Ｋｇ／ｃｄのポリプロピレンからなる電気
絶縁パフキングを用いることにより、シール性を向上さ
せ、高温高温保存に強く、耐漏液性に優れた電池を提供
することができる。As described above, according to the present invention, the bending elastic modulus is 18,000
By using electrically insulating puffing made of polypropylene of ~30,000 Kg/cd, it is possible to improve sealing performance, provide a battery that is resistant to high temperature storage and has excellent leakage resistance.
第１図は本発明の電池の一実施例を示す断面図である。
正極電池ケース
正極活物質
セパレータ
負極活物質
負極封口板
第１表に示されるように、ポリプロピレンの曲・電気絶
縁パフキング
以
上FIG. 1 is a sectional view showing an embodiment of the battery of the present invention. Positive electrode battery case Positive electrode active material Separator Negative electrode active material Negative electrode sealing plate As shown in Table 1, polypropylene bend/electrical insulation puffing or higher
Claims (1)
フッ化リチウム、過塩素酸リチウム等を溶解させた有機
電解液を用いた電池において、成形時の曲げ弾性率（Ｊ
ＩＳＫ７２０３）が１８０００〜３００００Ｋｇ／ｃｍ
＾３であるポリプロピレンを電気絶縁パッキング材とし
て用いたことを特徴とする電池。In a battery using an organic electrolyte in which lithium borofluoride, lithium perchlorate, etc. are dissolved in an organic solvent such as PC, DME, γ-BL, or THF, the bending elastic modulus (J
ISK7203) is 18,000 to 30,000Kg/cm
A battery characterized in that polypropylene ^3 is used as an electrically insulating packing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63296447A JPH02142057A (en) | 1988-11-24 | 1988-11-24 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63296447A JPH02142057A (en) | 1988-11-24 | 1988-11-24 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02142057A true JPH02142057A (en) | 1990-05-31 |
Family
ID=17833662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63296447A Pending JPH02142057A (en) | 1988-11-24 | 1988-11-24 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02142057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000011735A1 (en) * | 1998-08-21 | 2000-03-02 | Eveready Battery Company, Inc. | Electrochemical cell having low profile seal assembly |
-
1988
- 1988-11-24 JP JP63296447A patent/JPH02142057A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000011735A1 (en) * | 1998-08-21 | 2000-03-02 | Eveready Battery Company, Inc. | Electrochemical cell having low profile seal assembly |
| US6294283B1 (en) | 1998-08-21 | 2001-09-25 | Eveready Battery Company, Inc. | Electrochemical cell having low profile seal assembly |
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