JPH042043A - Battery - Google Patents
BatteryInfo
- Publication number
- JPH042043A JPH042043A JP2101992A JP10199290A JPH042043A JP H042043 A JPH042043 A JP H042043A JP 2101992 A JP2101992 A JP 2101992A JP 10199290 A JP10199290 A JP 10199290A JP H042043 A JPH042043 A JP H042043A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- resin
- foamable
- weight
- shows
- 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
Classifications
-
- 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
- Battery Mounting, Suspending (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電池の高温特性及び多湿中での特性改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improving the high temperature characteristics and high humidity characteristics of batteries.
従来の技術
電子回路の発展とともに、そのバックアップ電源として
の電池には、長期信頼性の確立と高温特性の性能向上が
要望されてきた。BACKGROUND OF THE INVENTION With the development of conventional electronic circuits, there has been a demand for batteries as backup power sources to have long-term reliability and improved high-temperature characteristics.
これに答えるために、電池を樹脂で充填するいわゆるモ
ールド電池が考案された。In order to solve this problem, a so-called molded battery was devised in which the battery is filled with resin.
発明が解決しようとする課題
このような構成では、樹脂として比較的比重の高い、た
とえばエポキシ樹脂を使用しており、モールド電池の重
量が重くなり、小型軽量を必要とされる電子回路への適
応が難しく、又充填する樹脂は多湿中において水分を吸
収して電池の特性劣化をまね（ことになる。Problems to be Solved by the Invention In such a structure, a resin with relatively high specific gravity, such as epoxy resin, is used, which increases the weight of the molded battery, making it difficult to adapt it to electronic circuits that require small size and light weight. In addition, the resin used to fill the battery absorbs moisture in humid environments, leading to deterioration of battery characteristics.
課題を解決するための手段
この問題を解決するために、本発明では電池の周辺に充
填する樹脂として発泡性樹脂を用いた構成をとるもので
ある。Means for Solving the Problems In order to solve this problem, the present invention adopts a configuration in which a foamable resin is used as the resin filled around the battery.
作用
この構成によって、軽量且つ多湿中でも水分を吸収する
ことなく、安定したモールド電池を可能にする。Function: This structure enables a molded battery that is lightweight and stable even in high humidity without absorbing moisture.
実施例 以下、本発明の実施例を第１図を参照にして説明する。Example Hereinafter, embodiments of the present invention will be described with reference to FIG.
第１図はコインタイプの素電池をモールドした電池の部
分断面図であり、図中１は電池収納ケースで、耐熱性難
燃性の樹脂よりなる。２は電池、３は本発明の特徴とす
る発泡性樹脂であって、その材質は発泡シリコーン、発
泡ポリスチロール、発泡ポリウレタンの何れかで、かつ
その独立気泡の含有率が５０〜９５％になるように充填
する。この時、独立気泡の含有率が５０％以下であると
、樹脂中の気泡が連続的に形成されるため、モールド中
の電池が直接外気と接触することがあり、モールドの効
果が低下する。そのために高温特性や多湿時の特性の低
下の原因になる。FIG. 1 is a partial sectional view of a battery formed by molding a coin-type unit cell. In the figure, 1 is a battery storage case, which is made of heat-resistant and flame-retardant resin. 2 is a battery, and 3 is a foamable resin that is a feature of the present invention, and the material thereof is any one of foamed silicone, foamed polystyrene, or foamed polyurethane, and the content of closed cells is 50 to 95%. Fill as shown. At this time, if the content of closed cells is 50% or less, the cells in the resin are formed continuously, so that the battery in the mold may come into direct contact with the outside air, reducing the effectiveness of the mold. This causes deterioration in high-temperature properties and properties in high humidity.
また、逆に９５％以上の場合は、十分な強度が維持でき
な（なる。On the other hand, if it is 95% or more, sufficient strength cannot be maintained.
発泡性樹脂の発泡率を２５０％以下にした場合、十分な
断熱性が保てなくなり、充填剤の効果が小さくなる。又
、逆に４００％以上では機械的強度が十分でなく落下試
験、振動試験で満足な特性が得られない。４は電池端子
である。If the foaming rate of the foamable resin is 250% or less, sufficient heat insulation cannot be maintained, and the effect of the filler will be reduced. On the other hand, if it exceeds 400%, the mechanical strength is insufficient and satisfactory characteristics cannot be obtained in drop tests and vibration tests. 4 is a battery terminal.
本発明の構成の電池（Ａ）と従来の構成の電池（Ｂ）に
ついて比較した結果を述べる。比較の方法は、各々の電
池について６０℃、９０％の高温多湿中で保存し２週間
毎に取り出して、回路電圧。The results of a comparison between the battery (A) having the structure of the present invention and the battery (B) having the conventional structure will be described. The method of comparison was to store each battery at 60°C and 90% high temperature and humidity, take it out every two weeks, and measure the circuit voltage.
重量変化を確認したあと、１５にΩで放電し、残存容量
を調へた。第２図に多湿保存における回路電圧の推移を
、第３図に多湿保存における残存容量維持率を、第４図
に多湿保存における重量変化の推移をそれぞれ示す。After checking the weight change, the battery was discharged at 15Ω to determine the remaining capacity. FIG. 2 shows the change in circuit voltage during humid storage, FIG. 3 shows the residual capacity retention rate during humid storage, and FIG. 4 shows the change in weight during humid storage.
その結果、電池（Ｂ）は保存時間と共に回路電圧の低下
が認められる。同時に放電容量の低下にある。一方、重
量は逆に増加傾向にある。これは、使用しているモール
ド樹脂が多湿中で水分を吸収し、電池の漏液を加速する
要因になる。電池から漏液が発生してくると、電池の封
口部と接触する樹脂の間に電解液が介在し、液絡現象が
おこり１部外部ショートになる。そのために回路電圧の
低下、放電容量維持率の低下に起因する。As a result, it was observed that the circuit voltage of battery (B) decreased with the storage time. At the same time, the discharge capacity is decreasing. On the other hand, weight is on the contrary increasing. This is because the molding resin used absorbs moisture in humid conditions, leading to accelerated battery leakage. When liquid leaks from the battery, the electrolyte is interposed between the resin that is in contact with the sealing part of the battery, and a liquid junction phenomenon occurs, resulting in a partial external short circuit. This causes a decrease in circuit voltage and a decrease in discharge capacity maintenance rate.
一方、本発明の電池（Ａ）は、前記のような現象は認め
られず、安定したモールド電池を可能にした。On the other hand, in the battery (A) of the present invention, the above-mentioned phenomenon was not observed, and a stable molded battery was possible.
モールド電池の軽量化については、モールドの樹脂を２
５０〜４００％発泡させているため、そのモールド部の
重量は、１／４〜２１５軽（なる。In order to reduce the weight of molded batteries, we recommend using 2 types of mold resin.
Since it is foamed by 50 to 400%, the weight of the mold part is 1/4 to 215% lighter.
発明の効果
以上のように本発明によれば、高温多湿特性にすぐれ、
かつ小型軽量なモールド電池が可能となった。Effects of the Invention As described above, the present invention has excellent high temperature and high humidity characteristics,
Moreover, a small and lightweight molded battery has become possible.
第１図は本発明のモールド電池を示す図、第２図は多湿
中における回路電圧の推移図、第３図は多湿中における
容量維持率の推移図、第４図は多湿中における重量変化
の推移図である。
１・・・・・・モールド容器、２・・・・・・電池、３
・・・・・・モールド樹脂、４・・・・・・電池端子。
代理人の氏名 弁理士 粟野重孝 ほか１名第２図
像存斯７”Ｂ’ｌ （ＷｅｅＪFig. 1 shows the molded battery of the present invention, Fig. 2 shows the change in circuit voltage under humid conditions, Fig. 3 shows the change in capacity retention ratio under humid conditions, and Fig. 4 shows the change in weight under humid conditions. This is a transition diagram. 1...Mold container, 2...Battery, 3
...Mold resin, 4...Battery terminal. Name of agent: Patent attorney Shigetaka Awano and one other person
Claims (3)
を備え、前記樹脂内に気孔部を有することを特徴とする
電池。(1) A battery comprising a battery and a battery container, a resin layer around the battery, and pores in the resin.
スチロール樹脂、発泡性ポリウレタン樹脂のうちの何れ
かを用い、独立気泡の含有率が５０〜９５％であること
を特徴とする特許請求の範囲第１項記載の電池。(2) A claim characterized in that the resin is any one of a foamable silicone resin, a foamable polystyrene resin, and a foamable polyurethane resin, and the content of closed cells is 50 to 95%. The battery according to item 1.
とを特徴とする特許請求の範囲第１項記載の電池。(3) The battery according to claim 1, wherein the foamable resin has an expansion rate of 250 to 400%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101992A JPH042043A (en) | 1990-04-18 | 1990-04-18 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101992A JPH042043A (en) | 1990-04-18 | 1990-04-18 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042043A true JPH042043A (en) | 1992-01-07 |
Family
ID=14315329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2101992A Pending JPH042043A (en) | 1990-04-18 | 1990-04-18 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042043A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454979A (en) * | 1992-08-27 | 1995-10-03 | Dow Corning Toray Silicon Co., Ltd. | Fluorosilicone antifoam |
| US5531929A (en) * | 1993-08-26 | 1996-07-02 | Dow Corning Toray Silicone Co., Ltd. | Silicone antifoam compositions |
| EP2403050A1 (en) | 2010-07-02 | 2012-01-04 | Saft | Battery of electrochemical generators including a foam as a filling material between generators |
-
1990
- 1990-04-18 JP JP2101992A patent/JPH042043A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454979A (en) * | 1992-08-27 | 1995-10-03 | Dow Corning Toray Silicon Co., Ltd. | Fluorosilicone antifoam |
| US5531929A (en) * | 1993-08-26 | 1996-07-02 | Dow Corning Toray Silicone Co., Ltd. | Silicone antifoam compositions |
| EP2403050A1 (en) | 2010-07-02 | 2012-01-04 | Saft | Battery of electrochemical generators including a foam as a filling material between generators |
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