JPH11162527A - Sensor and secondary battery device equipped with sensor - Google Patents
Sensor and secondary battery device equipped with sensorInfo
- Publication number
- JPH11162527A JPH11162527A JP9324510A JP32451097A JPH11162527A JP H11162527 A JPH11162527 A JP H11162527A JP 9324510 A JP9324510 A JP 9324510A JP 32451097 A JP32451097 A JP 32451097A JP H11162527 A JPH11162527 A JP H11162527A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- film body
- temperature
- battery case
- secondary battery
- 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.)
- Granted
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
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はセンサーおよびセン
サーを備えた二次電池装置に関するもので、さらに詳し
く言えば、電気自動車や据置用電源装置などに用いられ
る、高電圧、大電流を得るための二次電池装置に適した
センサーおよび前記センサーを備えることによって安全
性、信頼性が高めることができた二次電池装置の構成に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor and a secondary battery device provided with the sensor. The present invention relates to a sensor suitable for a secondary battery device, and a configuration of a secondary battery device that can improve safety and reliability by including the sensor.
【０００２】[0002]
【従来の技術】電気自動車や据置用電源装置などに用い
られる二次電池装置としては、従来より鉛蓄電池やアル
カリ蓄電池が単位電池として用いられていたが、近年は
小型化、軽量化が可能なリチウム電池を大容量化し、充
放電を可能にした大容量リチウム二次電池が単位電池と
して用いられるようになってきており、この大容量リチ
ウム二次電池を直、並列に複数個接続した二次電池装置
が注目されている。2. Description of the Related Art As a secondary battery device used for an electric vehicle or a stationary power supply device, a lead storage battery or an alkaline storage battery has conventionally been used as a unit battery. Large-capacity lithium secondary batteries, which have increased capacity and enabled charging and discharging, have been used as unit batteries. Battery devices are attracting attention.
【０００３】このような二次電池装置では、充放電時の
発熱によって特性が低下したり、早期に寿命に至ること
があるため、各単位電池に温度検出部を設けて温度上昇
時に充放電を停止させるといった、適切な対応ができる
ようにしている。[0003] In such a secondary battery device, the characteristics may be degraded due to heat generated during charging and discharging, or the life of the battery may be shortened at an early stage. Appropriate measures such as stopping can be taken.
【０００４】すなわち、上記温度検出部として熱電対ま
たはサーミスタを用い、温度上昇時に、その電圧変化や
抵抗変化を検出して充放電を停止させるようにしたもの
である。That is, a thermocouple or a thermistor is used as the temperature detecting section, and when the temperature rises, a change in voltage or a change in resistance is detected to stop charging and discharging.
【０００５】また、上記した二次電池装置では、過充電
時には、温度上昇とともに内圧上昇が認められることが
あるため、各単位電池に安全弁を設けて内圧上昇時に安
全弁が開弁できるようにしている。Further, in the above-mentioned secondary battery device, when the internal pressure rises with the temperature rise during overcharging, a safety valve may be provided in each unit battery so that the safety valve can be opened when the internal pressure rises. .
【０００６】すなわち、安全弁が内圧上昇によって開弁
した場合には、それによって充電を停止させるようにし
たものである。That is, when the safety valve is opened due to an increase in internal pressure, charging is stopped accordingly.
【０００７】[0007]
【発明が解決しようとする課題】ところが、上記した二
次電池装置では、安全弁が内圧上昇によって開弁せずに
電槽の膨れになった場合には充電が継続され、電槽の破
裂が発生するといった安全上好ましくない問題が生じる
可能性があった。However, in the above-described secondary battery device, when the safety valve does not open due to a rise in internal pressure and the battery case swells, charging is continued and the battery case bursts. There was a possibility that an unfavorable problem in terms of safety would occur.
【０００８】このような問題を解決するため、各単位電
池に圧力センサーを取り付け、単位電池の内圧上昇を検
出して充電を停止させるようにすることはできるが、圧
力センサーは高価であるため、各単位電池に圧力センサ
ーを取り付けると二次電池装置のコストが上昇するた
め、好ましくないという問題があった。In order to solve such a problem, it is possible to attach a pressure sensor to each unit battery to stop charging by detecting an increase in the internal pressure of the unit battery, but since the pressure sensor is expensive, Attaching a pressure sensor to each unit battery increases the cost of the secondary battery device, which is not preferable.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するた
め、請求項１記載の発明は、温度検出部および圧力検出
部を有し、前記各検出部は片面が粘着性を有した膜体に
設けられたものであり、かつ前記膜体に施された配線に
よって各検出部が接続されていることを特徴とするセン
サーであり、これにより、容易に種々の構成の二次電池
装置に適したセンサーを得ることができる。In order to solve the above-mentioned problems, the invention according to claim 1 has a temperature detecting section and a pressure detecting section, and each of the detecting sections is formed of a film having an adhesive property on one surface. Provided, and a sensor characterized in that the respective detection units are connected by wiring provided on the film body, thereby easily suitable for secondary battery devices of various configurations. You can get a sensor.
【００１０】また、請求項２記載の発明は、請求項１記
載のセンサーにおいて、温度検出部は膜体に設けられた
熱電対またはサーミスタであり、圧力検出部は膜体の一
部に設けられた強度を小さくした部分であることを特徴
とするものであり、これにより、種々の構成の二次電池
装置に適した、低コストのセンサーを得ることができ
る。According to a second aspect of the present invention, in the sensor according to the first aspect, the temperature detecting section is a thermocouple or a thermistor provided on the membrane, and the pressure detecting section is provided on a part of the membrane. This is characterized in that the strength is reduced, whereby a low-cost sensor suitable for a secondary battery device having various configurations can be obtained.
【００１１】また、請求項３記載の発明は、電槽に正
極、セパレータおよび負極を積層した極群が収納され、
前記正極から引き出された正極端子と前記負極から引き
出された負極端子とを挿通した蓋によって前記電槽が密
閉されてなる単位電池を、直、並列に複数個接続した二
次電池装置において、前記単位電池に、温度検出部およ
び圧力検出部を有し、前記各検出部は片面が粘着性を有
した膜体に設けられ、かつ前記膜体に施された配線によ
って各検出部が接続されてなるセンサーを具備したこと
を特徴とするものであり、これにより、温度上昇時また
は内圧上昇時に適切な対応が可能である。According to a third aspect of the present invention, there is provided a battery case in which a pole group in which a positive electrode, a separator, and a negative electrode are laminated is stored.
In a secondary battery device in which a plurality of unit batteries in which the battery case is sealed by a lid through which a positive electrode terminal pulled out from the positive electrode and a negative electrode terminal drawn out from the negative electrode are inserted are directly connected in parallel with each other, The unit battery has a temperature detection unit and a pressure detection unit, and each of the detection units is provided on a film body having one surface having adhesiveness, and each detection unit is connected by wiring provided on the film body. Thus, it is possible to appropriately cope with a rise in temperature or an increase in internal pressure.
【００１２】また、請求項４記載の発明は、請求項３記
載の二次電池装置において、温度検出部は端子または電
槽の側面の少なくとも一方に配置され、圧力検出部は蓋
の安全弁上または電槽の側面の少なくとも一方に配置さ
れていることを特徴とするものであり、これにより、端
子または電槽の側面の温度上昇を確実に検出することが
できるとともに、内圧上昇による安全弁や電槽の側面の
変化を確実に検出することができる。According to a fourth aspect of the present invention, in the secondary battery device according to the third aspect, the temperature detecting portion is disposed on at least one of the terminal and the side surface of the battery case, and the pressure detecting portion is provided on the safety valve of the lid or on the cover. It is characterized in that it is arranged on at least one of the side surfaces of the battery case, whereby it is possible to reliably detect a rise in temperature of the terminal or the side surface of the battery case, and to provide a safety valve or battery case due to a rise in internal pressure. Can reliably be detected.
【００１３】また、請求項５記載の発明は、請求項４記
載の二次電池装置において、温度検出部は膜体に熱電対
またはサーミスタを設けることによって形成し、温度上
昇による電圧または抵抗の変化を検出して充放電を停止
させるように構成するとともに、圧力検出部は膜体の一
部に強度を小さくした部分を設けることによって形成
し、強度を小さくした部分が安全弁の開弁時の圧力また
は電槽の膨れによって切断されて充電を停止させるよう
に構成したことを特徴とするものであり、これにより、
温度上昇時だけでなく、内圧上昇時に充電を確実に停止
させることができる。According to a fifth aspect of the present invention, in the secondary battery device according to the fourth aspect, the temperature detecting section is formed by providing a thermocouple or a thermistor on the film body, and the voltage or resistance changes due to temperature rise. And the pressure detection section is formed by providing a part with reduced strength in a part of the film body, and the part with reduced strength is the pressure at the time of opening the safety valve. Alternatively, the battery is cut off by swelling to stop charging.
Charging can be reliably stopped not only when the temperature rises but also when the internal pressure rises.
【００１４】[0014]
【発明の実施の形態】以下、本発明をその実施の形態に
基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on its embodiments.
【００１５】本発明の実施の形態を説明するに先立ち、
図１に示した、本発明の二次電池装置を構成する単位電
池に取り付けられるセンサーの平面図、図２に示した、
前記単位電池の斜視図について説明する。Before describing an embodiment of the present invention,
FIG. 2 is a plan view of a sensor attached to a unit battery constituting the secondary battery device of the present invention shown in FIG.
A perspective view of the unit battery will be described.
【００１６】図１に示したセンサー２０は、温度検出部
１１Ａ，１１Ｂおよび圧力検出部１２Ａ，１２Ｂが、片
面が粘着性を有したポリイミドシートからなる膜体１３
に設けられたものであり、前記膜体１３に施された配線
１４によって前記温度検出部１１Ａ，１１Ｂと圧力検出
部１２Ａ，１２Ｂとが接続されたものである。In the sensor 20 shown in FIG. 1, the temperature detectors 11A and 11B and the pressure detectors 12A and 12B are made of a film body 13 made of an adhesive polyimide sheet on one side.
The temperature detectors 11A and 11B and the pressure detectors 12A and 12B are connected by a wiring 14 provided on the film body 13.
【００１７】図２に示した単位電池１０は、正極、負極
およびセパレータを積層した極群１が電槽２内に収納さ
れ、蓋３によって密閉されたものである。すなわち、正
極は、正極活物質としてのコバルト酸リチウム、導電剤
としてのアセチレンブラック、結着剤およびゲル電解質
としてのポリエチレンオキサイドからなる混合物に、電
解液としての６フッ化リン酸リチウムのプロピレンカー
ボネート溶液を混練した合剤を、寸法が３６１ｍｍ×１
６７ｍｍのアルミニウム箔からなる集電体の両面に塗着
したものであり、負極は、負極活物質としての炭素粉末
とゲル電解質としてのポリエチレンオキサイドとからな
る混合物に、電解液としての６フッ化リン酸リチウムの
プロピレンカーボネート溶液を混練した合剤を、寸法が
３６３ｍｍ×１６９ｍｍの銅箔からなる集電体の両面に
塗着したものであり、セパレータは前記ポリエチレンオ
キサイドを層状にしたものであり、負極が最外部に位置
するように、正極を３１枚、負極を３２枚積層したもの
である。なお、前記極群１の正極からは正極端子４が引
き出され、負極からは負極端子５が引き出されている。The unit battery 10 shown in FIG. 2 is a unit cell in which a positive electrode, a negative electrode, and a separator are stacked, and is housed in a battery case 2 and sealed by a lid 3. That is, the positive electrode is made of a mixture of lithium cobalt oxide as a positive electrode active material, acetylene black as a conductive agent, polyethylene oxide as a binder and a gel electrolyte, and a propylene carbonate solution of lithium hexafluorophosphate as an electrolytic solution. 361mm × 1
The negative electrode was coated on both sides of a current collector made of a 67 mm aluminum foil, and the negative electrode was a mixture of carbon powder as a negative electrode active material and polyethylene oxide as a gel electrolyte, and phosphorus hexafluoride as an electrolytic solution. A mixture obtained by kneading a propylene carbonate solution of lithium oxide was applied on both sides of a current collector made of a copper foil having a size of 363 mm x 169 mm, and the separator was formed by layering the polyethylene oxide. Are located on the outermost side and 31 positive electrodes and 32 negative electrodes are stacked. The positive electrode terminal 4 is drawn out from the positive electrode of the electrode group 1, and the negative electrode terminal 5 is drawn out from the negative electrode.
【００１８】前記極群１は、幅が３８８ｍｍ、高さが１
７５ｍｍ、奥行が１４．５ｍｍの寸法で、１ｍｍの厚さ
のアルミニウムからなる角形の電槽２内に収納され、蓋
３をレーザー溶接することによって密閉されるととも
に、蓋３の正極端子４および負極端子５の挿通部にはポ
リエチレンからなるパッキンを配して各端子の挿通部が
密閉されている。なお、６は蓋３に設けた安全弁で、７
は電槽２および蓋３の表面に形成した突起である。The pole group 1 has a width of 388 mm and a height of 1
It is housed in a rectangular battery case 2 made of aluminum having a dimension of 75 mm and a depth of 14.5 mm and made of aluminum having a thickness of 1 mm. The lid 3 is sealed by laser welding, and the positive electrode terminal 4 and the negative electrode of the lid 3 are sealed. A packing made of polyethylene is arranged in the insertion portion of the terminal 5, and the insertion portion of each terminal is sealed. Reference numeral 6 denotes a safety valve provided on the lid 3 and 7
Are projections formed on the surfaces of the battery case 2 and the lid 3.
【００１９】図１に示したセンサー２０の、温度検出部
１１Ａ，１１Ｂは膜体１３に熱電対またはサーミスタを
設けることによって形成し、圧力検出部１２Ａ，１２Ｂ
は膜体１３に切り込みを入れて強度を小さくした部分を
設けることによって形成し、前記温度検出部１１Ａを正
極端子４または負極端子５の一方に配置するとともに、
前記温度検出部１１Ｂを電槽２の側面に配置し、前記圧
力検出部１２Ａを蓋３の安全弁６上に配置するととも
に、圧力検出部１２Ｂを電槽２の側面に配置する。そし
て、温度上昇による熱電対の電圧の変化またはサーミス
タの抵抗の変化を検出して充放電を停止させるようにす
るとともに、安全弁６の開弁時の圧力または電槽２の膨
れによって前述した強度を小さくした部分が切断されて
配線１４が切断され、充電を停止させるようにしてい
る。なお、この強度を小さくした部分は、１ｋｇｆ以下
の引張力で破断する程度の強度にし、破断時の配線１４
の伸びを１ｍｍ以下にすれば、電槽２の変形の初期に充
電を停止させることができるので、安全性の点で好まし
い。The temperature detectors 11A and 11B of the sensor 20 shown in FIG. 1 are formed by providing a thermocouple or thermistor on the film body 13 and the pressure detectors 12A and 12B.
Is formed by providing a cut portion in the film body 13 to reduce the strength, and disposing the temperature detecting portion 11A on one of the positive terminal 4 or the negative terminal 5,
The temperature detecting unit 11B is arranged on the side surface of the battery case 2, the pressure detecting unit 12A is arranged on the safety valve 6 of the lid 3, and the pressure detecting unit 12B is arranged on the side surface of the battery case 2. A change in the voltage of the thermocouple or a change in the resistance of the thermistor due to a temperature rise is detected to stop charging and discharging. The reduced portion is cut and the wiring 14 is cut to stop charging. Note that the portion where the strength was reduced was set to such a strength that it could be broken by a tensile force of 1 kgf or less.
If the elongation is 1 mm or less, charging can be stopped at the beginning of the deformation of the battery case 2, which is preferable in terms of safety.
【００２０】次に、上記した単位電池１０にセンサー２
０を取り付けた試験用電池を恒温槽に入れて温度を２０
℃、４０℃、６０℃のように上昇させたところ、センサ
ー２０によって検出された電池温度の変化と恒温槽内の
温度の変化との間で一定の相関性があることがわかっ
た。Next, the sensor 2 is connected to the unit battery 10 described above.
0 into a thermostat with the test battery
When the temperature was raised to 40 ° C., 40 ° C., or 60 ° C., it was found that there was a certain correlation between the change in the battery temperature detected by the sensor 20 and the change in the temperature in the thermostat.
【００２１】このことに基づいて、試験用電池を強制冷
却せずに０．１Ｃで連続充電したところ、前記センサー
２０によってその温度変化が２℃／分以上になったこと
を検出して充電を停止させるように設定すれば、試験用
電池はほぼ完全充電できることがわかった。また、この
試験用電池を０．０５Ｃで過放電し、前記センサー２０
によってその温度変化が２℃／分以上になったことを検
出して放電を停止させるように設定すれば、試験用電池
は過放電によって悪影響を受けないことがわかった。ま
た、前記試験用電池を強制冷却せずに、前記センサー２
０の温度検出部１１Ａ，１１Ｂが動作しないようにして
おいて０．１Ｃで連続充電したところ、充電末期に内圧
が上昇して安全弁６が開弁すると同時にセンサー２０の
配線１４が切断されて充電を停止できることがわかっ
た。また、前記試験用電池を０．１Ｃ充電、１Ｃ放電の
充放電サイクルに供し、前記センサー２０によってその
温度変化が２℃／分以上になったことを検出して充電を
停止させるように設定すれば、充放電サイクル寿命は１
００サイクル以上になることがわかった。Based on this, when the test battery was continuously charged at 0.1 C without forcibly cooling, the sensor 20 detected that the temperature change became 2 ° C./min or more, and started charging. It was found that the test battery could be almost completely charged if it was set to stop. The test battery was over-discharged at 0.05 C, and the sensor 20 was discharged.
It was found that the test battery was not adversely affected by overdischarge if the discharge was stopped by detecting that the temperature change became 2 ° C./min or more. Further, without forcibly cooling the test battery, the sensor 2
When the temperature detectors 11A and 11B of 0 are not operated and the battery is continuously charged at 0.1C, the internal pressure rises at the end of charging, the safety valve 6 is opened, and at the same time, the wiring 14 of the sensor 20 is disconnected and charged. I found that I could stop. The test battery is set to be subjected to a charge / discharge cycle of 0.1 C charge and 1 C discharge, and the sensor 20 detects that the temperature change becomes 2 ° C./min or more, and stops charging. If the charge / discharge cycle life is 1
It was found that the number of cycles exceeded 00.
【００２２】次に、図３に示した、本発明の実施の形態
に係るセンサーの平面図、図４に示した、本発明の実施
の形態に係る二次電池装置の斜視図について説明する。Next, a plan view of the sensor according to the embodiment of the present invention shown in FIG. 3 and a perspective view of the secondary battery device according to the embodiment of the present invention shown in FIG. 4 will be described.
【００２３】図３に示したセンサー２００は、膜体１３
に複数の配線１４が施されてなるもので、単位電池の数
だけの配線を切り取り、一端の温度検出部１１Ａ、圧力
検出部１２Ａと温度検出部１１Ｂ、圧力検出部１２Ｂと
の間を途中まで切り裂き、温度検出部１１Ａ、圧力検出
部１２Ａと温度検出部１１Ｂ、圧力検出部１２Ｂとがほ
ぼ直角になるように折り曲げている。The sensor 200 shown in FIG.
Are provided with a plurality of wires 14, and the number of wires is cut out as many as the number of the unit batteries, and a portion between the temperature detecting portion 11A and the pressure detecting portion 12A and the temperature detecting portion 11B and the pressure detecting portion 12B at one end is cut off. The tearing is performed such that the temperature detecting unit 11A and the pressure detecting unit 12A and the temperature detecting unit 11B and the pressure detecting unit 12B are bent at substantially right angles.
【００２４】図４に示した二次電池装置１００は、前記
単位電池１０を８個直列に接続し、隣接する単位電池１
０間で電槽２の側面の突起７同士が接触して通風による
冷却効果が高められるようにするとともに、枠体８によ
って一体にしているもので、前記センサー２００の、温
度検出部１１Ａを各単位電池１０の正極端子４に、圧力
検出部１２Ａを安全弁６上に配置し、温度検出部１１Ｂ
および圧力検出部１２Ｂを各単位電池１０の電槽２の側
面に配置している。In the secondary battery device 100 shown in FIG. 4, eight unit batteries 10 are connected in series,
The protrusions 7 on the side surfaces of the battery case 2 are in contact with each other between 0 to enhance the cooling effect by ventilation, and are integrated by the frame 8, and the temperature detecting unit 11A of the sensor 200 is At the positive electrode terminal 4 of the unit battery 10, a pressure detector 12A is disposed on the safety valve 6, and a temperature detector 11B
The pressure detector 12B is disposed on the side surface of the battery case 2 of each unit battery 10.
【００２５】上記した実施の形態では、温度検出部と圧
力検出部の両方を備えたセンサーを、単位電池が大容量
リチウム二次電池からなる二次電池装置に用いる場合に
ついて説明したが、単位電池の種類に応じて、温度検出
部または圧力検出部の一方を有したセンサーを用いても
よく、温度検出部も端子または電槽の側面の一方のみに
配置してもよく、圧力検出部も安全弁上または電槽の側
面の一方のみに配置してもよい。In the above embodiment, the case where the sensor having both the temperature detecting section and the pressure detecting section is used in the secondary battery device in which the unit battery is a large capacity lithium secondary battery has been described. Depending on the type of the sensor, a sensor having one of a temperature detection unit and a pressure detection unit may be used, and the temperature detection unit may be disposed only on one of the terminal and the side surface of the battery case. It may be arranged on only one of the upper side or the side of the battery case.
【００２６】[0026]
【発明の効果】上記した如く、請求項１および２記載の
発明では、温度検出部、圧力検出部を膜体に設けたもの
であるから、種々の構成の二次電池装置に適した、低コ
ストのセンサーを得るのに寄与することができる。As described above, according to the first and second aspects of the present invention, since the temperature detecting section and the pressure detecting section are provided on the film, the low-temperature suitable for secondary battery devices of various configurations. It can contribute to obtaining cost sensors.
【００２７】また、請求項３〜５記載の発明では、温度
上昇時、内圧上昇時のいずれの場合にも適切な対応が可
能な二次電池装置を得るのに寄与することができる。According to the third to fifth aspects of the present invention, it is possible to contribute to obtaining a secondary battery device capable of appropriately coping with both cases of temperature rise and internal pressure rise.
【図１】本発明の二次電池装置を構成する単位電池に取
り付けられるセンサーの平面図である。FIG. 1 is a plan view of a sensor attached to a unit battery constituting a secondary battery device of the present invention.
【図２】図１に示した単位電池の斜視図である。FIG. 2 is a perspective view of the unit battery shown in FIG.
【図３】本発明の実施の形態に係るセンサーの平面図で
ある。FIG. 3 is a plan view of the sensor according to the embodiment of the present invention.
【図４】本発明の実施の形態に係る二次電池装置の斜視
図である。FIG. 4 is a perspective view of the secondary battery device according to the embodiment of the present invention.
１ 極群 ２ 電槽 ３ 蓋 ６ 安全弁 １０ 単位電池 １１Ａ，１１Ｂ 温度検出部 １２Ａ，１２Ｂ 圧力検出部 １３ 膜体 １４ 配線 ２０ センサー １００ 二次電池装置 ２００ センサー Reference Signs List 1 electrode group 2 battery case 3 lid 6 safety valve 10 unit battery 11A, 11B temperature detecting unit 12A, 12B pressure detecting unit 13 membrane 14 wiring 20 sensor 100 secondary battery device 200 sensor
Claims (5)
記各検出部は片面が粘着性を有した膜体に設けられたも
のであり、かつ前記膜体に施された配線によって各検出
部が接続されていることを特徴とするセンサー。1. A temperature detecting section and a pressure detecting section, wherein each of said detecting sections is provided on a film body having an adhesive surface on one side, and each of said detecting sections is detected by a wiring provided on said film body. A sensor wherein the parts are connected.
検出部は膜体に設けられた熱電対またはサーミスタであ
り、圧力検出部は膜体の一部に設けられた強度を小さく
した部分であることを特徴とするセンサー。2. The sensor according to claim 1, wherein the temperature detecting section is a thermocouple or a thermistor provided on the film body, and the pressure detecting section is a part having a reduced strength provided on a part of the film body. A sensor characterized in that:
層した極群が収納され、前記正極から引き出された正極
端子と前記負極から引き出された負極端子とを挿通した
蓋によって前記電槽が密閉されてなる単位電池を、直、
並列に複数個接続した二次電池装置において、前記単位
電池に、温度検出部および圧力検出部を有し、前記各検
出部は片面が粘着性を有した膜体に設けられ、かつ前記
膜体に施された配線によって各検出部が接続されてなる
センサーを具備したことを特徴とする二次電池装置。3. A battery case in which an electrode group in which a positive electrode, a separator and a negative electrode are laminated is housed in a battery case, and the battery case is closed by a lid through which a positive electrode terminal drawn out from the positive electrode and a negative electrode terminal drawn out from the negative electrode are inserted. The unit battery that has been
In the secondary battery device connected in parallel, the unit battery has a temperature detecting unit and a pressure detecting unit, and each of the detecting units is provided on a film body having one surface having adhesiveness, and the film body A secondary battery device comprising a sensor in which each of the detection units is connected by the wiring provided in (1).
温度検出部は端子または電槽の側面の少なくとも一方に
配置され、圧力検出部は蓋の安全弁上または電槽の側面
の少なくとも一方に配置されていることを特徴とする二
次電池装置。4. The secondary battery device according to claim 3, wherein
The secondary battery device, wherein the temperature detecting unit is disposed on at least one of the terminal and the side surface of the battery case, and the pressure detecting unit is disposed on at least one of the safety valve of the lid and the side surface of the battery case.
温度検出部は膜体に熱電対またはサーミスタを設けるこ
とによって形成し、温度上昇による電圧または抵抗の変
化を検出して充放電を停止させるように構成するととも
に、圧力検出部は膜体の一部に強度を小さくした部分を
設けることによって形成し、強度を小さくした部分が安
全弁の開弁時の圧力または電槽の膨れによって切断され
て充電を停止させるように構成したことを特徴とする二
次電池装置。5. The secondary battery device according to claim 4, wherein
The temperature detector is formed by providing a thermocouple or thermistor on the membrane, detects charging or discharging changes due to temperature rise, and stops charging and discharging. The secondary is characterized in that it is formed by providing a part with reduced strength to the part, and the part with reduced strength is cut off by the pressure at the time of opening the safety valve or the swelling of the battery case to stop charging. Battery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32451097A JP4224730B2 (en) | 1997-11-26 | 1997-11-26 | Secondary battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32451097A JP4224730B2 (en) | 1997-11-26 | 1997-11-26 | Secondary battery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11162527A true JPH11162527A (en) | 1999-06-18 |
| JP4224730B2 JP4224730B2 (en) | 2009-02-18 |
Family
ID=18166616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32451097A Expired - Lifetime JP4224730B2 (en) | 1997-11-26 | 1997-11-26 | Secondary battery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4224730B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099922A1 (en) * | 2001-06-05 | 2002-12-12 | Japan Storage Battery Co., Ltd. | Storage battery device and power source apparatus comprising it |
| KR100369069B1 (en) * | 1999-09-08 | 2003-01-24 | 삼성에스디아이 주식회사 | Pli battery |
| JP2008535174A (en) * | 2005-04-20 | 2008-08-28 | エルジー・ケム・リミテッド | Secondary battery module with piezoelectric sensor |
| JP2010015956A (en) * | 2008-07-07 | 2010-01-21 | Toyota Motor Corp | Detection device, and power storage device |
| JP2010282816A (en) * | 2009-06-04 | 2010-12-16 | Mitsubishi Motors Corp | Secondary-battery abnormality detector |
| JP2011521609A (en) * | 2008-04-28 | 2011-07-21 | エスケー エナジー カンパニー リミテッド | Safety switch for secondary battery for electric vehicle and charge / discharge system for secondary battery for electric vehicle using the same |
| WO2012072163A1 (en) * | 2010-11-30 | 2012-06-07 | Bayerische Motoren Werke Aktiengesellschaft | Apparatus for detecting the temperature of an energy storage means |
| JP2016058189A (en) * | 2014-09-08 | 2016-04-21 | 株式会社豊田自動織機 | Battery module |
| US9660301B2 (en) | 2013-10-29 | 2017-05-23 | Xiaomi Inc. | Methods and devices for battery protection |
| WO2019146960A1 (en) * | 2018-01-24 | 2019-08-01 | 주식회사 아모그린텍 | Battery pressure detection sensor and terminal including same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012210263B4 (en) | 2011-11-18 | 2024-01-11 | Robert Bosch Gmbh | Battery cell with a temperature sensor integrated in the battery cell housing |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100369069B1 (en) * | 1999-09-08 | 2003-01-24 | 삼성에스디아이 주식회사 | Pli battery |
| WO2002099922A1 (en) * | 2001-06-05 | 2002-12-12 | Japan Storage Battery Co., Ltd. | Storage battery device and power source apparatus comprising it |
| US7510798B2 (en) | 2001-06-05 | 2009-03-31 | Gs Yuasa Corporation | Storage battery device and power source apparatus comprising it |
| JP2008535174A (en) * | 2005-04-20 | 2008-08-28 | エルジー・ケム・リミテッド | Secondary battery module with piezoelectric sensor |
| JP2011521609A (en) * | 2008-04-28 | 2011-07-21 | エスケー エナジー カンパニー リミテッド | Safety switch for secondary battery for electric vehicle and charge / discharge system for secondary battery for electric vehicle using the same |
| JP2010015956A (en) * | 2008-07-07 | 2010-01-21 | Toyota Motor Corp | Detection device, and power storage device |
| JP4696291B2 (en) * | 2009-06-04 | 2011-06-08 | 三菱自動車工業株式会社 | Secondary battery abnormality detection device |
| JP2010282816A (en) * | 2009-06-04 | 2010-12-16 | Mitsubishi Motors Corp | Secondary-battery abnormality detector |
| KR101077746B1 (en) | 2009-06-04 | 2011-10-27 | 미츠비시 지도샤 엔지니어링 가부시키가이샤 | Device for detecting abnormality in a secondary battery |
| US8282275B2 (en) | 2009-06-04 | 2012-10-09 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Device for detecting abnormality in a secondary battery |
| WO2012072163A1 (en) * | 2010-11-30 | 2012-06-07 | Bayerische Motoren Werke Aktiengesellschaft | Apparatus for detecting the temperature of an energy storage means |
| CN103180701A (en) * | 2010-11-30 | 2013-06-26 | 宝马股份公司 | Apparatus for detecting the temperature of an energy storage means |
| US9660301B2 (en) | 2013-10-29 | 2017-05-23 | Xiaomi Inc. | Methods and devices for battery protection |
| JP2016058189A (en) * | 2014-09-08 | 2016-04-21 | 株式会社豊田自動織機 | Battery module |
| WO2019146960A1 (en) * | 2018-01-24 | 2019-08-01 | 주식회사 아모그린텍 | Battery pressure detection sensor and terminal including same |
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| JP4224730B2 (en) | 2009-02-18 |
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