JPS59134557A - Collected battery - Google Patents
Collected batteryInfo
- Publication number
- JPS59134557A JPS59134557A JP58008423A JP842383A JPS59134557A JP S59134557 A JPS59134557 A JP S59134557A JP 58008423 A JP58008423 A JP 58008423A JP 842383 A JP842383 A JP 842383A JP S59134557 A JPS59134557 A JP S59134557A
- Authority
- JP
- Japan
- Prior art keywords
- diode
- resistor
- battery
- facing
- charging
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、複数個直列接続した密閉形二次電池全主体と
した集合電池に関するものである。さらに詳しくは電池
を過充電から保護して内圧増加にを
よる漏液や膨れ招くことなく、適切に放電させることの
できる保護装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a battery assembly consisting entirely of sealed secondary batteries connected in series. More specifically, the present invention relates to a protection device that protects a battery from overcharging and allows the battery to be discharged appropriately without leaking or swelling due to an increase in internal pressure.
従来例の構成とその問題点
最近の携帯用電子機器普及につれ、その電源として二次
電池を複数個直列接続して1個のケース内に納めた集合
電池が広く用いられるようになってきている。とくに急
速充電特性に優れた密閉形ニッケル・カドミウム蓄電池
(以下Ni−Cd電池という)を主体とした集合電池は
、第1図のようにNi−Cd電池1を機器の仕様電圧に
応じて複数個直列接続し、これと電気回路的には直列接
続されかつ電池に近接した自動復帰式の温度ヒユーズ(
以下温度ヒユーズという)2とから構成されている。Conventional configurations and their problems As portable electronic devices have become more popular in recent years, assembled batteries, in which multiple secondary batteries are connected in series and housed in a single case, have become widely used as power sources. . As shown in Figure 1, an assembled battery mainly consisting of sealed nickel-cadmium storage batteries (hereinafter referred to as Ni-Cd batteries), which has particularly excellent rapid charging characteristics, is made up of multiple Ni-Cd batteries 1 according to the specified voltage of the device. A self-resetting temperature fuse (
(hereinafter referred to as a temperature fuse) 2.
この集合電池における温度ヒユーズは、1C(電池容量
に見合う大きさ)2程度の電流で、電圧制御方式により
急速充電を行なう際電池を過充電から保護するように機
能するものである。The temperature fuse in this assembled battery has a current of about 1C (size commensurate with the battery capacity) of about 2, and functions to protect the battery from overcharging when performing rapid charging using a voltage control method.
すなわち、充電過程でその電圧制御が何らかの原因で不
能となった際、電池に近接した温度ヒーーズで電池の過
充電領域における温度上昇を検出し、温度ヒーーズの設
定(作動)温度に到ったならば、ヒーーズを作動させて
充電を停止させるものである。In other words, if voltage control becomes impossible for some reason during the charging process, a temperature heater close to the battery detects a temperature rise in the overcharge region of the battery, and if the temperature rises to the set (operating) temperature of the temperature heater, For example, it activates the heater to stop charging.
しかし、この方式には、次のような欠点があつた。すな
わち第2図は、公称容量500 mAhのNi−Cd電
池6個で集合電池を構成して、これを20℃の雰囲気中
で、1C相尚の500mAで充電したときの充電時間と
、電池電圧(A)、電池内部圧力(B)、電池の温度上
昇(qの関係を示す図である。この第2図かられかるよ
うに、たとえば温度ヒユーズの作動温度を70℃とする
と、この作動温度に電池の温度があがるまでに、電池内
部圧力は24に9・cm2以上になっており、内圧増加
による電解液の漏液や膨れ等の危険がある。捷た、温度
ヒーーズの作動温度全40℃にすると、ヒユーズ作動時
の電池内部圧力は10Kg・m 程度となり、漏液の可
能性はほとんどないが、40℃の雰囲気ではヒヱーズの
作動により負荷へ放電できなくなる。However, this method had the following drawbacks. In other words, Figure 2 shows the charging time and battery voltage when a battery assembly is constructed with six Ni-Cd batteries with a nominal capacity of 500 mAh and is charged at 500 mA of 1C phase in an atmosphere of 20°C. (A), battery internal pressure (B), and battery temperature rise (q).As can be seen from this Figure 2, for example, if the operating temperature of the temperature fuse is 70°C, this operating temperature By the time the temperature of the battery rises, the internal pressure of the battery has reached 24 to 9 cm2 or higher, and there is a risk of electrolyte leakage or swelling due to the increase in internal pressure. ℃, the internal pressure of the battery when the fuse is activated is about 10Kg·m2, and there is almost no possibility of leakage, but in an atmosphere of 40℃, the fuse operation makes it impossible to discharge to the load.
この放電不能の欠点をおぎなうために、温度ヒーーズの
作動温度全50〜60’Cとし、内圧増加による漏液対
策としては、集合電池ケース外に電解液が漏れ出ないよ
うに、吸液マットなど全ケース内に組み入れて対処して
いたが、集合電池の放電特性は電解液の減少等により満
足のゆくものではなかった。In order to compensate for this drawback of not being able to discharge, the operating temperature of the temperature heater is set at 50 to 60'C, and as a countermeasure against leakage due to increased internal pressure, a liquid absorbing mat is used to prevent the electrolyte from leaking outside the battery case. Although this problem was solved by incorporating it into all cases, the discharge characteristics of the assembled battery were not satisfactory due to the decrease in electrolyte, etc.
発明の目的
本発明は、上記従来例における欠点を解消するもので、
集合電池の充電の際に何らかの原因で過るとともに、放
電の際には、保護装置の存在を何ら支障のないものとし
て高温状況下でも放電可能にするとと′を目的としたも
のである。OBJECT OF THE INVENTION The present invention solves the drawbacks of the above-mentioned conventional examples.
The purpose of this invention is to enable discharge even under high temperature conditions, with the presence of a protective device not causing any hindrance during discharging, even if errors occur due to some cause during charging of the assembled battery.
発明の構成
本発明の集合電池は、上記目的全達成するために、複数
個直列接続した密閉形二次電池に温度ヒーーズを直列に
接続し、この温度ヒーーズに近接してこれを充電中に加
熱する抵抗体を配置するとともに充電順方向のダイオー
ド全抵抗体と直列につなぎ、電池の放電時に上記抵抗体
全放電回路から除外するための放電順方向のダイオード
を上記抵抗体、ダイオードと並列接続して温度ヒーーズ
とともに保護装置としたことを特徴とする。Structure of the Invention In order to achieve all of the above objects, the assembled battery of the present invention has a temperature heater connected in series to a plurality of series-connected sealed secondary batteries, and is heated in the vicinity of the temperature heater during charging. At the same time, a diode in the charging forward direction is connected in series with all the resistors, and a diode in the discharging forward direction is connected in parallel with the resistor and the diode to exclude the resistor from the total discharge circuit when the battery is discharged. It is characterized in that it is used as a protection device together with a temperature heater.
この本発明の集合電池では、過充電を保護装置における
抵抗体の発熱による温度ヒーーズの加速作動で解消でき
、高温状況下での放電は、放電順方向のダイオードによ
る抵抗体及び充電順方向ダイオードのう回除去機能によ
って、支障なく行える。In the assembled battery of the present invention, overcharging can be eliminated by accelerating temperature heating caused by heat generated by the resistor in the protection device, and discharging under high temperature conditions can be prevented by the resistor by the forward discharge diode and by the forward charge diode. Thanks to the detour removal function, this can be done without any problems.
実施例の説明 以下、本発明の詳細は図に示す実施例により説明する。Description of examples Hereinafter, details of the present invention will be explained with reference to embodiments shown in the drawings.
第3図は本発明の実施例における集合電池を示す概略図
であバ図中1は複数個直列接続したN i −Cd %
i池、2は電池に近接してこれと直列に接続された温度
ヒユーズ、3は温度ヒーーズ2に近接した抵抗体であり
、これには充電順方向のダイオード4が接続されている
。5は放電順方向のダイオードで、これは抵抗体3及び
ダイオード4の直列部と並列回路を構成している。本発
明の特徴である保護装置6は、この温度ヒユーズ2、抵
抗体3、ダイオード4,5から構成されている。FIG. 3 is a schematic diagram showing an assembled battery in an embodiment of the present invention. In the figure, 1 indicates a plurality of N i -Cd%
2 is a temperature fuse close to the battery and connected in series thereto, 3 is a resistor close to the temperature fuse 2, and a diode 4 for forward charging is connected to this. Reference numeral 5 denotes a forward discharge diode, which constitutes a parallel circuit with the resistor 3 and the diode 4 in series. The protection device 6, which is a feature of the present invention, is composed of the temperature fuse 2, the resistor 3, and the diodes 4 and 5.
今、前記の各要素を次の通りとして集合電池を構成した
。Now, an assembled battery was constructed with each of the above-mentioned elements as follows.
Ni−Cd電池1・・・公称容量500 mAhの電池
全6個
温度ヒユーズ2・・・作動温度70℃の自動復帰式抵抗
体3 ・・・500 mA通電時に60分経過で40℃
の温度上昇を生じる金属被
膜抵抗
ダイオード4.6・・・通電容量10A以上のダイオー
ド
また充電及び放電の条件はいずれも20℃下で500m
Aの電流値とし、充電は定電圧制御方式とした。充電開
始後68分で温度ヒユーズが作動し、充電が停止した。Ni-Cd battery 1: All 6 batteries with a nominal capacity of 500 mAh Temperature fuse 2: Automatic reset resistor with operating temperature of 70°C 3: 40°C after 60 minutes when 500 mA is applied
Metal film resistance diode that causes a temperature rise of
The current value was set to A, and charging was performed using a constant voltage control method. The temperature fuse was activated 68 minutes after charging started, and charging stopped.
この時の電池内部圧力は8に7・備−2であり、電解液
の漏液や電池の膨れは一切生じていなかった。また充電
後の放電は、温度ヒユーズを作動させることなく完了で
きた。At this time, the internal pressure of the battery was 8.7 x -2, and no leakage of electrolyte or swelling of the battery occurred. Furthermore, discharging after charging was completed without activating the temperature fuse.
このように本実施例によれば、通常の充電により温度ヒ
ユーズが作動するか、あるいは電圧制御が不能になった
場合でも電池内hk上昇させることなく充電を停止させ
るととyt′5.放電も支障なく行える。As described above, according to this embodiment, even if the temperature fuse is activated during normal charging or voltage control becomes impossible, charging can be stopped without increasing the hk in the battery. Discharge can be performed without any problem.
発明の効果
以上のように本発明の集合電池では、急速充電において
も保護装置を確実に作動させて電池を過h′ら
充伊裸護できるとともに、放電を支障なく行なうことが
できる。また温度ヒーーズの設定温度や抵抗体の発熱特
性は、用いる二次電池に応じて任意に選択でき、幅広い
適用が可能である。Effects of the Invention As described above, in the assembled battery of the present invention, even during rapid charging, the protection device can be operated reliably to protect the battery from overheating, and the battery can be discharged without any trouble. Further, the set temperature of the temperature heater and the heat generation characteristics of the resistor can be arbitrarily selected depending on the secondary battery used, allowing a wide range of applications.
第1図は従来の二次電池で構成した集合電池を示す図、
第2図は密閉形ニッケル・カドニウム蓄電池を6側面列
接続した集合電池全10相当の電流で充電した際の充電
時間と電池電圧、電池内部圧力及び電池の温度上昇の関
係を示す図、第3図は本発明の実施例における集合電池
の概略図であろう
1・・・・・・Ni−Cd電池、2・・・・・・温度ヒ
ユーズ、3・・・・・・抵抗体、4,5・・・・・・ダ
イオード、6・・・・・・保護装置。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図Figure 1 is a diagram showing a battery assembly made up of conventional secondary batteries.
Figure 2 shows the relationship between charging time, battery voltage, battery internal pressure, and battery temperature rise when sealed nickel-cadmium storage batteries are charged with a current equivalent to all 10 battery packs connected in rows on six sides. The figure is a schematic diagram of an assembled battery in an embodiment of the present invention. 1...Ni-Cd battery, 2...Temperature fuse, 3...Resistor, 4, 5...Diode, 6...Protective device. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure
Claims (1)
に接続された保護装置と全備え、前記保護装置は自動復
帰式温度ヒーーズと、このヒユーズに近接した抵抗体及
び充電順方向のダイオードと放電順方向のダイオードと
の並列回路とからなる集合電池。It is equipped with a plurality of sealed secondary batteries connected in series and a protection device connected in series to the batteries, and the protection device includes an automatic reset temperature heater, a resistor close to this fuse, and a diode in the forward charging direction. A collective battery consisting of a parallel circuit with a diode in the forward direction of discharge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58008423A JPS59134557A (en) | 1983-01-20 | 1983-01-20 | Collected battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58008423A JPS59134557A (en) | 1983-01-20 | 1983-01-20 | Collected battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59134557A true JPS59134557A (en) | 1984-08-02 |
Family
ID=11692715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58008423A Pending JPS59134557A (en) | 1983-01-20 | 1983-01-20 | Collected battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59134557A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987007982A1 (en) * | 1986-06-23 | 1987-12-30 | Chloride Silent Power Limited | A method of proving a battery of alkali metal cells |
US5180641A (en) * | 1991-05-09 | 1993-01-19 | Rockwell International Corporation | Battery cell bypass circuit |
US5252411A (en) * | 1990-09-26 | 1993-10-12 | Sony Corporation | Protective apparatus for secondary battery |
-
1983
- 1983-01-20 JP JP58008423A patent/JPS59134557A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987007982A1 (en) * | 1986-06-23 | 1987-12-30 | Chloride Silent Power Limited | A method of proving a battery of alkali metal cells |
US5252411A (en) * | 1990-09-26 | 1993-10-12 | Sony Corporation | Protective apparatus for secondary battery |
US5180641A (en) * | 1991-05-09 | 1993-01-19 | Rockwell International Corporation | Battery cell bypass circuit |
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