JP2003197268A - Battery pack having abnormality protection circuit - Google Patents
Battery pack having abnormality protection circuitInfo
- Publication number
- JP2003197268A JP2003197268A JP2001398807A JP2001398807A JP2003197268A JP 2003197268 A JP2003197268 A JP 2003197268A JP 2001398807 A JP2001398807 A JP 2001398807A JP 2001398807 A JP2001398807 A JP 2001398807A JP 2003197268 A JP2003197268 A JP 2003197268A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- abnormal
- pressure
- secondary battery
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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)
- Power Engineering (AREA)
- Protection Of Static Devices (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (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、ケース内の異常状
態を検出して充電を停止させる異常保護回路付電池パッ
クに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack with an abnormality protection circuit that detects an abnormal state in a case and stops charging.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】図２は
電池パックの回路構成概要を示す図であり、１１は二次
電池、１２は保護制御部、ＳＷ１は放電制御素子、ＳＷ
２は充電制御素子を示す。2. Description of the Related Art FIG. 2 is a diagram showing an outline of a circuit configuration of a battery pack, 11 is a secondary battery, 12 is a protection control section, SW1 is a discharge control element, and SW.
Reference numeral 2 represents a charge control element.
【０００３】一般に電池パックにおいては、例えば図２
に示すように二次電池１１、保護能制御部１２、放電制
御素子ＳＷ１、充電制御素子ＳＷ２を内蔵している。保
護制御部１２は、二次電池１１の端子電圧を監視し、少
なくとも過充電検知機能、過充電を検知したときに充電
制御素子ＳＷ２を制御する機能を有するものであり、こ
の保護機能により二次電池１１が過充電になり充電電圧
に異常に高くなった場合に、充電制御素子ＳＷ２をオフ
にして、充電を停止させている。Generally, in a battery pack, for example, FIG.
As shown in FIG. 5, the secondary battery 11, the protection function control unit 12, the discharge control element SW1, and the charge control element SW2 are incorporated. The protection control unit 12 has a function of monitoring the terminal voltage of the secondary battery 11 and at least having an overcharge detection function and a function of controlling the charge control element SW2 when overcharge is detected. When the battery 11 is overcharged and the charging voltage becomes abnormally high, the charging control element SW2 is turned off to stop charging.
【０００４】上記保護制御部１２が故障して過充電検
知、保護機能が動作しなくなり、二次電池１１が満充電
電圧を越えて過充電状態に曝されることになると、二次
電池１１には過電圧が加わって発熱、膨れが生じる。し
かし、このような発熱、膨れが生じても、そのままでは
電池パックの極端な膨れ等が発生しない限り、視覚的に
充電環境の異常等を電池パック単体で検出することは難
しい。その結果、最終的に破裂したり、発火するという
問題に至ってしまう。When the protection control unit 12 fails and the overcharge detection and protection functions do not operate and the secondary battery 11 exceeds the full charge voltage and is exposed to the overcharged state, the secondary battery 11 is exposed. Generates heat and swells due to overvoltage. However, even if such heat generation and swelling occur, it is difficult to visually detect an abnormality in the charging environment or the like by the battery pack alone unless the battery pack extremely swells. As a result, the problem of eventually bursting or igniting is reached.
【０００５】また、例えば単体で電池の膨れを検知して
電流を遮断するものも提案されてはいるが（特開平１０
−２１４６１２号公報、特開２０００−２５１９４２号
公報等を参照）、このような従来のものでは、誤動作の
確率が高く実用上では問題がある。Further, for example, a device which detects a swelling of a battery and shuts off an electric current has been proposed (Japanese Patent Application Laid-Open No. H10 (1998) -109242).
(See JP-A-214612, JP-A-2000-251942, etc.), and such a conventional one has a high probability of malfunction and has a problem in practical use.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するものであって、過充電保護機能等が故障した場合
にも簡単な構成の付加により電池の破裂や発火に至る事
態を未然に防止しようとするものである。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and even when the overcharge protection function or the like fails, a situation in which a battery is ruptured or ignited by the addition of a simple configuration is obviated. It is something to try to prevent.
【０００７】そのために本発明は、ケース内の異常状態
を検出して充電を停止させる異常保護回路付電池パック
であって、二次電池の充電回路に直列に接続され充電回
路を遮断する回路遮断手段と、異常圧力を検出する圧力
検出手段と、異常温度を検出する温度検出手段と、前記
圧力検出手段により異常圧力が検出されたとき又は前記
温度検出手段により異常温度が検出されたとき前記回路
遮断手段を動作させて充電回路を遮断する保護回路とを
備えたことを特徴とするものである。Therefore, the present invention is a battery pack with an abnormality protection circuit that detects an abnormal state in the case and stops charging, and is a circuit breaker that is connected in series to the charging circuit of the secondary battery and that interrupts the charging circuit. Means, pressure detecting means for detecting an abnormal pressure, temperature detecting means for detecting an abnormal temperature, and the circuit when the abnormal pressure is detected by the pressure detecting means or when the abnormal temperature is detected by the temperature detecting means A protection circuit for activating the interruption means to interrupt the charging circuit is provided.
【０００８】前記回路遮断手段としてヒューズを用い、
前記保護回路は、前記ヒューズを通して前記二次電池の
端子間を短絡する回路であり、前記二次電池の電圧が所
定値以上であることを条件として前記二次電池の端子間
を短絡し、また、前記保護回路は、遅延回路を有し一定
時間前記異常圧力又は異常温度の検出状態が継続したと
き前記回路遮断手段を動作させ、前記圧力検出手段は、
前記二次電池と該二次電池を覆うケース間の異常圧力を
検出するものであることを特徴とするものである。A fuse is used as the circuit breaking means,
The protection circuit is a circuit that short-circuits the terminals of the secondary battery through the fuse, short-circuits the terminals of the secondary battery on condition that the voltage of the secondary battery is equal to or higher than a predetermined value, and The protection circuit has a delay circuit and operates the circuit breaking means when the detection state of the abnormal pressure or the abnormal temperature continues for a certain period of time, and the pressure detection means,
An abnormal pressure between the secondary battery and a case covering the secondary battery is detected.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照しつつ説明する。図１は本発明に係る異常保護回
路付電池パックの実施の形態を示す図であり、１は二次
電池、２はヒューズ、３は圧力センサ、４は温度セン
サ、５はオア論理回路、６は遅延回路、７はアンド論理
回路、Ｄは定電圧素子、Ｔはスイッチング素子、Ｒ１、
Ｒ２は抵抗を示す。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a battery pack with an abnormality protection circuit according to the present invention, in which 1 is a secondary battery, 2 is a fuse, 3 is a pressure sensor, 4 is a temperature sensor, 5 is an OR logic circuit, and 6 Is a delay circuit, 7 is an AND logic circuit, D is a constant voltage element, T is a switching element, R1,
R2 represents resistance.
【００１０】図１において、ヒューズ２は、二次電池１
の充電回路に直列に接続され過大な充電電流が流れると
自己発熱により溶断して充電回路を遮断する回路遮断手
段であり、例えば配線に用いるＮｉタブを一定電流で溶
断するように加工したものを用いることもできる。圧力
センサ３は、二次電池１とそれを覆うケースの間に設置
されて一定値以上となる異常圧力を検出する圧力検出手
段であり、温度センサ４は、一定値以上となる二次電池
１の異常温度を検出する温度検出手段である。オア論理
回路５は、圧力センサ３による異常圧力の検出信号と、
温度センサ４による異常温度の検出信号とのオア処理を
行い、いずれかの検出信号により遅延回路６を動作させ
るものである。In FIG. 1, the fuse 2 is a secondary battery 1
Is a circuit disconnecting means that is connected in series to the charging circuit and disconnects the charging circuit by self-heating when an excessive charging current flows. For example, a Ni tab used for wiring is processed to melt at a constant current. It can also be used. The pressure sensor 3 is a pressure detection unit that is installed between the secondary battery 1 and a case that covers the secondary battery 1 and detects an abnormal pressure that is a certain value or more. The temperature sensor 4 is a secondary battery 1 that has a certain value or more. Is a temperature detecting means for detecting an abnormal temperature of. The OR logic circuit 5 detects an abnormal pressure detection signal from the pressure sensor 3,
An OR process is performed with the detection signal of the abnormal temperature by the temperature sensor 4, and the delay circuit 6 is operated by any of the detection signals.
【００１１】定電圧素子Ｄは、二次電池１が一定以上の
電圧に充電されているかどうかを判定、検出する、例え
ば定電圧ダイオードである。アンド論理回路７は、遅延
回路６の出力信号と定電圧素子Ｄの出力信号とのアンド
処理を行い、スイッチング素子Ｔをオンに制御するもの
であり、ここでは、異常圧力又は異常温度が遅延回路６
で設定された一定時間異常継続した場合に、かつ二次電
池１の端子間の充電電圧が定電圧素子Ｄの動作定電圧を
越える場合にスイッチング素子Ｔをオンに制御する。ス
イッチング素子Ｔは、ヒューズ２を通して二次電池１の
端子間を短絡するものであり、抵抗Ｒ２は、その短絡電
流を規定する、例えばＦＥＴその他のトランジスタであ
る。The constant voltage element D is, for example, a constant voltage diode that determines and detects whether or not the secondary battery 1 is charged to a voltage higher than a certain level. The AND logic circuit 7 performs an AND process on the output signal of the delay circuit 6 and the output signal of the constant voltage element D to control the switching element T to be turned on. 6
The switching element T is controlled to be turned on when the abnormal voltage continues for a certain period of time set in step 1 and when the charging voltage between the terminals of the secondary battery 1 exceeds the operating constant voltage of the constant voltage element D. The switching element T short-circuits the terminals of the secondary battery 1 through the fuse 2, and the resistor R2 is, for example, an FET or other transistor that regulates the short-circuit current.
【００１２】次に、動作を説明する。二次電池パックで
は、先に述べたように通常、過充電保護機能を備えてい
るが（図示せず）、この過充電保護機能が作動せず、さ
らに過充電状態が進行した場合、発熱、膨れが生じて電
池パック内の温度が上昇し、圧力が上昇する。その結
果、圧力が一定値を越えると、圧力センタ３により異常
圧力が検出され、また、温度が一定値を越えると、温度
センタ４により異常温度が検出される。Next, the operation will be described. As described above, the rechargeable battery pack normally has an overcharge protection function (not shown), but if this overcharge protection function does not work and the overcharge state further progresses, heat generation, Swelling occurs, the temperature inside the battery pack rises, and the pressure rises. As a result, when the pressure exceeds a certain value, the pressure center 3 detects an abnormal pressure, and when the temperature exceeds a certain value, the temperature center 4 detects an abnormal temperature.
【００１３】これらいずれかの出力によりオア論理回路
５を通して遅延回路６が動作し、その状態が一定時間以
上にわたり継続すると、二次電池１が定電圧素子Ｄで規
定される一定以上の電圧であることを条件に、アンド論
理回路７を通してスイッチング素子Ｔをオンになり、二
次電池１からヒューズ２、抵抗Ｒ２を通して短絡電流が
流れる。この短絡電流によりヒューズ２が溶断されて、
充電回路が遮断される。遅延回路６及び定電圧素子Ｄを
用い、一定以上の電圧が二次電池１にかかっていること
を判定した上で、さらに一定以上の時間にわたり圧力又
は温度が異常である場合にのみスイッチング素子Ｔがオ
ンしてヒューズ２を溶断させ、電流を手段するので、誤
動作を効果的に防ぐこともできる。When any of these outputs causes the delay circuit 6 to operate through the OR logic circuit 5 and remains in that state for a certain period of time or longer, the secondary battery 1 has a voltage above a certain level defined by the constant voltage element D. Under this condition, the switching element T is turned on through the AND logic circuit 7, and a short circuit current flows from the secondary battery 1 through the fuse 2 and the resistor R2. The fuse 2 is blown by this short-circuit current,
The charging circuit is cut off. The delay circuit 6 and the constant voltage element D are used to determine that a voltage above a certain level is applied to the secondary battery 1, and then only when the pressure or temperature is abnormal for a certain time or more, the switching element T Is turned on to fuse the fuse 2 and supply a current, so that a malfunction can be effectively prevented.
【００１４】なお、本発明は、上記実施の形態に限定さ
れるものではなく、種々の変形が可能である。例えば上
記実施の形態では、充電回路を遮断する回路遮断手段と
して過大な電流を流すことにより溶断するヒューズを用
いたが、保護回路において二次電池からの電流が流れる
抵抗を発熱させて、その熱によりヒューズを溶断させる
ようにしてもよいし、バイメタル等で一定時間にわたり
充電回路を遮断させるようにしてもよい。また、異常圧
力又は異常温度の検出と一定時間以上継続した場合に、
電流を遮断する構成が達成できるのであれば、定電圧ダ
イオードやアンド論理回路、スイッチング素子、ヒュー
ズからなる回路を適宜変更することも可能であることは
いうまでもない。The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the fuse that blows off by flowing an excessive current is used as the circuit cutoff means that cuts off the charging circuit. The fuse may be blown by, or the charging circuit may be cut off with a bimetal or the like for a certain period of time. Also, if abnormal pressure or temperature is detected and it continues for a certain period of time,
It goes without saying that the circuit including the constant voltage diode, the AND logic circuit, the switching element, and the fuse can be appropriately changed as long as the configuration for cutting off the current can be achieved.
【００１５】[0015]
【発明の効果】以上の説明から明らかなように、本発明
によれば、ケース内の異常状態を検出して充電を停止さ
せる異常保護回路付電池パックであって、二次電池の充
電回路に直列に接続され充電回路を遮断する回路遮断手
段と、異常圧力を検出する圧力検出手段と、異常温度を
検出する温度検出手段と、圧力検出手段により異常圧力
が検出されたとき又は温度検出手段により異常温度が検
出されたとき回路遮断手段を動作させて充電回路を遮断
する保護回路とを備えたので、二次電池に一定以上の電
圧がかかり、過充電で電池が膨れて異常圧力、異常温度
になっても、電池の破裂や発火などが生じる前に充電回
路を遮断して、破裂や発火に至るのを防止することがで
きる。As is apparent from the above description, according to the present invention, there is provided a battery pack with an abnormality protection circuit for detecting an abnormal state in a case and stopping charging, which is used in a charging circuit for a secondary battery. Circuit interrupting means connected in series to interrupt the charging circuit, pressure detecting means for detecting abnormal pressure, temperature detecting means for detecting abnormal temperature, and when abnormal pressure is detected by the pressure detecting means or by the temperature detecting means. When the abnormal temperature is detected, the circuit breaker is activated to shut off the charging circuit, so the secondary battery receives a certain voltage or more, and overcharging causes the battery to swell, causing abnormal pressure and abnormal temperature. However, the charging circuit can be shut off before the battery bursts or catches fire to prevent the battery from bursting or catching fire.
【００１６】回路遮断手段としてヒューズを用い、保護
回路は、ヒューズを通して二次電池の端子間を短絡する
回路であり、二次電池の電圧が所定値以上であることを
条件として二次電池の端子間を短絡し、また、保護回路
は、遅延回路を有し一定時間異常圧力又は異常温度の検
出状態が継続したとき回路遮断手段を動作させ、圧力検
出手段は、二次電池と該二次電池を覆うケース間の異常
圧力を検出するので、過充電等により電池の膨れや発熱
が生じて異常状態が続く場合には、確実に電流を遮断
し、誤動作を防ぐことができ、二次電池パックの安全性
の向上、信頼性の向上を図ることができる。A fuse is used as the circuit breaking means, and the protection circuit is a circuit for short-circuiting the terminals of the secondary battery through the fuse, and the terminal of the secondary battery is provided on condition that the voltage of the secondary battery is equal to or higher than a predetermined value. The protection circuit has a delay circuit and operates the circuit interruption means when the abnormal pressure or abnormal temperature detection state continues for a certain period of time, and the pressure detection means operates the secondary battery and the secondary battery. Since the abnormal pressure between the cases that cover the battery is detected, if the battery swells or heats up due to overcharging, etc. and the abnormal condition continues, the current can be cut off reliably to prevent malfunction. The safety and reliability of can be improved.
【図１】 本発明に係る異常保護回路付電池パックの実
施の形態を示す図である。FIG. 1 is a diagram showing an embodiment of a battery pack with an abnormality protection circuit according to the present invention.
【図２】 電池パックの回路構成概要を示す図である。FIG. 2 is a diagram showing a schematic circuit configuration of a battery pack.
１…二次電池、２…ヒューズ、３…圧力センサ、４…温
度センサ、５…オア論理回路、６…遅延回路、７…アン
ド論理回路、Ｄ…定電圧素子、Ｔ…スイッチング素子、
Ｒ１、Ｒ２…抵抗1 ... Secondary battery, 2 ... Fuse, 3 ... Pressure sensor, 4 ... Temperature sensor, 5 ... OR logic circuit, 6 ... Delay circuit, 7 ... AND logic circuit, D ... Constant voltage element, T ... Switching element,
R1, R2 ... Resistance
Claims (5)
止させる異常保護回路付電池パックであって、二次電池
の充電回路に直列に接続され充電回路を遮断する回路遮
断手段と、異常圧力を検出する圧力検出手段と、異常温
度を検出する温度検出手段と、前記圧力検出手段により
異常圧力が検出されたとき又は前記温度検出手段により
異常温度が検出されたとき前記回路遮断手段を動作させ
て充電回路を遮断する保護回路とを備えたことを特徴と
する異常保護回路付電池パック。1. A battery pack with an abnormality protection circuit for detecting an abnormal state in a case to stop charging, the circuit pack being connected in series to a charging circuit of a secondary battery and for interrupting the charging circuit, and an abnormality. Pressure detecting means for detecting pressure, temperature detecting means for detecting abnormal temperature, and operating the circuit breaking means when abnormal pressure is detected by the pressure detecting means or when abnormal temperature is detected by the temperature detecting means A battery pack with an abnormality protection circuit, comprising: a protection circuit that shuts off the charging circuit.
い、前記保護回路は、前記ヒューズを通して前記二次電
池の端子間を短絡する回路であることを特徴とする請求
項１記載の異常保護回路付電池パック。2. The battery with an abnormality protection circuit according to claim 1, wherein a fuse is used as the circuit breaking means, and the protection circuit is a circuit that short-circuits the terminals of the secondary battery through the fuse. pack.
所定値以上であることを条件として前記二次電池の端子
間を短絡することを特徴とする請求項２記載の異常保護
回路付電池パック。3. The abnormal protection circuit according to claim 2, wherein the protection circuit short-circuits the terminals of the secondary battery on condition that the voltage of the secondary battery is equal to or higher than a predetermined value. Battery pack.
間前記異常圧力又は異常温度の検出状態が継続したとき
前記回路遮断手段を動作させることを特徴とする請求項
１記載の異常保護回路付電池パック。4. The abnormal protection circuit according to claim 1, wherein the protection circuit has a delay circuit and operates the circuit breaking means when the detection state of the abnormal pressure or the abnormal temperature continues for a certain period of time. Battery pack with.
二次電池を覆うケース間の異常圧力を検出するものであ
ることを特徴とする請求項１記載の異常保護回路付電池
パック。5. The battery pack with an abnormality protection circuit according to claim 1, wherein the pressure detecting means detects an abnormal pressure between the secondary battery and a case covering the secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001398807A JP2003197268A (en) | 2001-12-28 | 2001-12-28 | Battery pack having abnormality protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001398807A JP2003197268A (en) | 2001-12-28 | 2001-12-28 | Battery pack having abnormality protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003197268A true JP2003197268A (en) | 2003-07-11 |
Family
ID=27604092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001398807A Withdrawn JP2003197268A (en) | 2001-12-28 | 2001-12-28 | Battery pack having abnormality protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003197268A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007095498A (en) * | 2005-09-29 | 2007-04-12 | Densei Lambda Kk | Safety system of battery pack |
| JP2007173223A (en) * | 2005-11-28 | 2007-07-05 | Nec Tokin Corp | Battery lamination body and battery pack |
| JP2007250545A (en) * | 2006-03-13 | 2007-09-27 | Lg Chem Ltd | Battery module having simple-structure safety means |
| US7719237B2 (en) | 2004-10-13 | 2010-05-18 | Lg Electronics Inc. | Wireless communication terminal and battery pack for the same |
| JP2013171834A (en) * | 2012-02-22 | 2013-09-02 | Autoliv Development Ab | Battery pack for vehicle |
| JP2014512089A (en) * | 2011-05-17 | 2014-05-19 | エルジー ケム． エルティーディ． | Battery pack with improved safety |
| CN103931025A (en) * | 2012-01-26 | 2014-07-16 | 株式会社Lg化学 | Battery pack having improved safety |
| JP2015528989A (en) * | 2012-07-25 | 2015-10-01 | フォルクスヴァーゲン ヴァルタ マイクロバッテリー フォルシュングスゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Battery with thermal switch |
| JP2016072011A (en) * | 2014-09-29 | 2016-05-09 | 株式会社東芝 | Battery pack |
| CN106876815A (en) * | 2015-11-05 | 2017-06-20 | 锂能源和电力有限责任两合公司 | Battery cell and battery pack |
| CN107742685A (en) * | 2017-10-12 | 2018-02-27 | 苏州达方电子有限公司 | A kind of battery modules |
| CN108352583A (en) * | 2015-11-05 | 2018-07-31 | 锂能源和电力有限责任两合公司 | battery pack system for vehicle |
| CN111357147A (en) * | 2018-03-07 | 2020-06-30 | 株式会社尼罗沃克 | Battery and charger |
| JP2021525437A (en) * | 2019-01-18 | 2021-09-24 | エルジー・ケム・リミテッド | Battery management device and method |
| WO2021205502A1 (en) * | 2020-04-06 | 2021-10-14 | 日産自動車株式会社 | Battery-abnormality warning method and battery-abnormality warning device |
| CN115516324A (en) * | 2021-04-14 | 2022-12-23 | 日产自动车株式会社 | Thermal diffusion determination method and thermal diffusion detection system for battery pack |
-
2001
- 2001-12-28 JP JP2001398807A patent/JP2003197268A/en not_active Withdrawn
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7719237B2 (en) | 2004-10-13 | 2010-05-18 | Lg Electronics Inc. | Wireless communication terminal and battery pack for the same |
| JP2007095498A (en) * | 2005-09-29 | 2007-04-12 | Densei Lambda Kk | Safety system of battery pack |
| JP2007173223A (en) * | 2005-11-28 | 2007-07-05 | Nec Tokin Corp | Battery lamination body and battery pack |
| JP2007250545A (en) * | 2006-03-13 | 2007-09-27 | Lg Chem Ltd | Battery module having simple-structure safety means |
| JP4689634B2 (en) * | 2006-03-13 | 2011-05-25 | エルジー・ケム・リミテッド | Battery module with simple structure safety means |
| US9761911B2 (en) | 2011-05-17 | 2017-09-12 | Lg Chem, Ltd. | Battery pack of improved safety |
| JP2014512089A (en) * | 2011-05-17 | 2014-05-19 | エルジー ケム． エルティーディ． | Battery pack with improved safety |
| US9768473B2 (en) | 2012-01-26 | 2017-09-19 | Lg Chem, Ltd. | Battery pack of improved safety |
| CN103931025A (en) * | 2012-01-26 | 2014-07-16 | 株式会社Lg化学 | Battery pack having improved safety |
| JP2014533424A (en) * | 2012-01-26 | 2014-12-11 | エルジー・ケム・リミテッド | Battery pack with improved safety |
| JP2013171834A (en) * | 2012-02-22 | 2013-09-02 | Autoliv Development Ab | Battery pack for vehicle |
| JP2015528989A (en) * | 2012-07-25 | 2015-10-01 | フォルクスヴァーゲン ヴァルタ マイクロバッテリー フォルシュングスゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Battery with thermal switch |
| JP2016072011A (en) * | 2014-09-29 | 2016-05-09 | 株式会社東芝 | Battery pack |
| JP2018534753A (en) * | 2015-11-05 | 2018-11-22 | リチウム・エナジー・アンド・パワー・ゲーエムベーハー・ウント・コー．カーゲー | Battery system for vehicle |
| CN108352583A (en) * | 2015-11-05 | 2018-07-31 | 锂能源和电力有限责任两合公司 | battery pack system for vehicle |
| CN106876815A (en) * | 2015-11-05 | 2017-06-20 | 锂能源和电力有限责任两合公司 | Battery cell and battery pack |
| CN107742685A (en) * | 2017-10-12 | 2018-02-27 | 苏州达方电子有限公司 | A kind of battery modules |
| CN107742685B (en) * | 2017-10-12 | 2023-12-05 | 苏州达方电子有限公司 | Battery module |
| CN111357147A (en) * | 2018-03-07 | 2020-06-30 | 株式会社尼罗沃克 | Battery and charger |
| JP2021525437A (en) * | 2019-01-18 | 2021-09-24 | エルジー・ケム・リミテッド | Battery management device and method |
| JP7062180B2 (en) | 2019-01-18 | 2022-05-06 | エルジー エナジー ソリューション リミテッド | Battery management device and method |
| WO2021205502A1 (en) * | 2020-04-06 | 2021-10-14 | 日産自動車株式会社 | Battery-abnormality warning method and battery-abnormality warning device |
| EP4135147A4 (en) * | 2020-04-06 | 2023-05-24 | Nissan Motor Co., Ltd. | Battery-abnormality warning method and battery-abnormality warning device |
| JP7380848B2 (en) | 2020-04-06 | 2023-11-15 | 日産自動車株式会社 | Battery abnormality warning method and battery abnormality warning device |
| CN115516324A (en) * | 2021-04-14 | 2022-12-23 | 日产自动车株式会社 | Thermal diffusion determination method and thermal diffusion detection system for battery pack |
| CN115516324B (en) * | 2021-04-14 | 2024-03-08 | 日产自动车株式会社 | Battery pack thermal diffusion determination method and thermal diffusion detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003197268A (en) | Battery pack having abnormality protection circuit | |
| US6239515B1 (en) | Circuit for the protection of electrical devices | |
| KR100485752B1 (en) | Secondary Battery Protection Device | |
| JP6615457B2 (en) | Secondary battery protection with permanent deactivation | |
| JP3327790B2 (en) | Battery protection device | |
| US8427099B2 (en) | Monitor for charging series connected batteries | |
| KR20060028174A (en) | Battery pack having function of heat alarm | |
| JP2009095162A (en) | Battery pack and power tool using the same | |
| JP2002095157A (en) | Overcharge preventing circuit | |
| JP2003142162A (en) | Battery pack | |
| JP3221868B2 (en) | Battery protection circuit | |
| JP5064776B2 (en) | Pack battery | |
| JPH07123504A (en) | Safety unit for electric automobile | |
| JPH10208726A (en) | Electric current shut off apparatus and battery having the apparatus built-in | |
| JP2010115070A (en) | Overcharge protection circuit of secondary battery | |
| WO2021253848A1 (en) | Battery protection circuit, battery management system, and battery device and control method therefor | |
| JP3620796B2 (en) | Battery pack | |
| JP2003109673A (en) | Battery pack with warning function | |
| KR102312488B1 (en) | Integratied active fuse module and method for preventing overvoltage using there of | |
| JP2004146307A (en) | Battery unit | |
| JPH02237437A (en) | Overcharging preventer | |
| JP3471720B2 (en) | Secondary battery protection device and battery pack | |
| JPH08205411A (en) | Reverse connection protective circuit for battery | |
| JPH10150721A (en) | Protective circuit for secondary battery | |
| JP4158487B2 (en) | Safety power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040524 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20051125 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20051221 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20060124 |