JP2007026879A - Identifying body for battery and battery pack - Google Patents

Identifying body for battery and battery pack Download PDF

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JP2007026879A
JP2007026879A JP2005207139A JP2005207139A JP2007026879A JP 2007026879 A JP2007026879 A JP 2007026879A JP 2005207139 A JP2005207139 A JP 2005207139A JP 2005207139 A JP2005207139 A JP 2005207139A JP 2007026879 A JP2007026879 A JP 2007026879A
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battery
identification
battery pack
conductive connection
metal conductive
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JP4768340B2 (en
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Kazunori Maruoka
和典 圓岡
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Tokin Corp
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NEC Tokin Tochigi Ltd
NEC Tokin Corp
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an identifying body for a battery capable of identifying whether a battery and a battery pack are genuine articles or counterfeits in the battery incorporating the battery pack with high capacity density such as a lithium ion battery, and to provide the battery and the battery pack provided with the identifying body for the battery. <P>SOLUTION: This identifying body 2 for the battery has an identifying part 6 on a surface of a metal conductive connection body 4 for conductive connection of the battery 3. The identifying part 6 is covered with a material which is melted or decomposed at a temperature lower than the temperature at which the metal conductive connection body melts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電池用識別体、電池、および電池パックに関するものであり、特にリチウムイオン電池等の高容量密度の電池を内蔵した電池パックに関するものである。   The present invention relates to a battery identifier, a battery, and a battery pack, and more particularly to a battery pack incorporating a high capacity density battery such as a lithium ion battery.

リチウムイオン電池等の高容量密度の電池は、軽量且つ高エネルギーを有するため、例えば携帯電話、ノートパソコンをはじめとした携帯可能な電子機器の電源として用いられている。
これらの電池は、単独で使用されることはなく、一般には電池の安全装置、充放電を制御する充放電制御手段等からなる回路基板と一体化されて電池パックに収納されて使用されている。 High capacity density batteries such as lithium ion batteries are light and have high energy, and are therefore used as power sources for portable electronic devices such as mobile phones and laptop computers.
These batteries are not used alone, and are generally used by being integrated with a circuit board comprising a battery safety device, a charge / discharge control means for controlling charge / discharge, etc. and housed in a battery pack. .

リチウムイオン電池等を収納した電池パックは、電池使用機器へ装着するために電池パック使用機器に合致した外形、接点形状等とすることが求められる。電池パックは、各電池使用機器に合致した外形、接点形状とするのみでは不十分であって、電池使用機器に応じた仕様とすることが求められている。   A battery pack containing a lithium ion battery or the like is required to have an outer shape, a contact shape, or the like that matches the battery pack using device in order to be mounted on the battery using device. It is not sufficient for the battery pack to have an external shape and a contact shape that match each battery-operated device, and it is required to have specifications according to the battery-used device.

近年、正規品の電池パック以外に、外形、接点形状が一致するものの、安全性に問題があるリチウムイオン電池を収納したり、あるいは安全性能が不十分な回路基板を装着した製造者名を偽った偽造品の電池パックや、電池使用機器の提供者が認定していない電池パック（以下、これらを合わせて偽造品と称す）が市場に見受けられており、偽造品の電池パックに内蔵したリチウムイオン電池、あるいは充放電制御手段を原因として電池パックが異常な発熱をしたり、火災等の重大な事故の発生が報告されている。   In recent years, in addition to regular battery packs, the name of the manufacturer that contains a lithium-ion battery that has the same external shape and contact shape but has a safety problem, or that has a circuit board with insufficient safety performance, has been disguised. In addition, counterfeit battery packs and battery packs that have not been certified by battery providers (hereinafter referred to as counterfeit products) are found in the market, and lithium contained in counterfeit battery packs It has been reported that a battery pack generates abnormal heat or a serious accident such as a fire due to an ion battery or charge / discharge control means.

図４は、従来の電池パックの一例を説明する図である。
図４（Ａ）に電池パックを斜視図によって外観を示すように、電池パック１の壁面に、ホログラムシール１２を添付して識別する方法、紫外線の照射によって可視化する不可視印刷部１３を設ける方法等の光学的な手段による識別方法が提案されており（例えば、特許文献１）、また、電池パックに形状が特徴的な部分を形成した識別形状部１１を設けることが行われている。 FIG. 4 is a diagram illustrating an example of a conventional battery pack.
As shown in the perspective view of the battery pack in FIG. 4A, a method of identifying the wall surface of the battery pack 1 with a hologram seal 12 attached thereto, a method of providing an invisible printing portion 13 that is visualized by irradiation with ultraviolet rays, and the like The identification method by the optical means is proposed (for example, Patent Document 1), and the identification shape portion 11 in which a characteristic portion is formed on the battery pack is provided.

また、図４（Ｂ）に電池パックの外装体を取り除いた状態を示すように、回路基板５に識別情報を保存した認証チップ１４を設けたり、識別形状部１１を設ける方法が提案されている。
しかしながら、電池の電解液の漏液による汚れ、あるいは破損等によって識別が困難となったり、電池パックの発熱によって火災等により、識別部が燃焼して識別機能が消失してしまうという問題点があった。
特開２００４−３３５２２９号公報 Further, as shown in FIG. 4B, a method of providing an authentication chip 14 storing identification information on the circuit board 5 or providing an identification shape portion 11 has been proposed. .
However, there is a problem that identification becomes difficult due to dirt or breakage due to leakage of the electrolyte of the battery, or that the identification function is lost due to the fire of the battery pack due to fire or the like. It was.
JP 2004-335229 A

本発明は、電池パックに漏液等を生じて表面が汚れて正確に検出することが困難となったり、火災によっても識別機能が失われることがなく、リチウムイオン電池、電池パックに設けることによって、容易に電池や電池パックが偽造品か否かを識別することができる電池用識別体、電池用識別体が設けられた電池及び電池パックを提供することを課題とするものである。   The present invention prevents the battery pack from leaking liquid, and the surface becomes dirty, making it difficult to detect accurately or losing the identification function even in the event of a fire. By providing it in a lithium ion battery or battery pack, It is an object of the present invention to provide a battery identification body that can easily identify whether a battery or a battery pack is a counterfeit product, a battery provided with the battery identification body, and a battery pack.

本発明の課題は、電池用識別体において、電池の導電接続用の金属製導電接続体面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆された電池用識別体によって解決することができる。
識別部は、金属に凹凸、あるいは穴を設けることによって形成されたものである前記の電池用識別体である。
また、電池において、電池端子と電池要素との導電接続用の金属製導電接続体の表面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆された電池用識別体を備えた電池である。 An object of the present invention is to provide an identification part for a battery having an identification part on the surface of the metal conductive connection for conductive connection of the battery, and the identification part is melted at a temperature lower than a temperature at which the metal conductive connection is melted. This can be solved by a battery identifier coated with a substance to be decomposed.
An identification part is the said battery identification body formed by providing an unevenness | corrugation or a hole in a metal.
Further, the battery has an identification portion on the surface of the metal conductive connector for conductive connection between the battery terminal and the battery element, and the identification portion is melted at a temperature lower than a temperature at which the metal conductive connector is melted. It is a battery provided with the battery identification body coat | covered with the substance to decompose | disassemble.

また、電池パックにおいて、外装体内に、電池、および回路基板を収納し、回路基板と電池との間の導電接続を形成する導電接続用の金属製導電接続体の表面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆された電池用識別体を備えた電池パックである。   Further, in the battery pack, the battery and the circuit board are accommodated in the exterior body, and the identification part is provided on the surface of the metal conductive connection body for conductive connection that forms the conductive connection between the circuit board and the battery. The identification unit is a battery pack including a battery identification body covered with a substance that melts or decomposes at a temperature lower than a temperature at which the metal conductive connector is melted.

本発明の電池パックは、電池と回路基板との間の導電接続を形成する金属製導電接続体には、識別部が設けられ、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融、もしくは分解する物質によって被覆された電池用識別体を形成しており、そのため外面からは単なる導電接続部材として認識されるため識別部の存在を確認することができず、金属製導電接続体を所定の温度に加熱して識別部を被覆している部材を除去した後にはじめて識別情報を確認することができる。また、電池パックが発火して燃焼した場合にも電池用識別体、および識別部が金属製の部材によって構成されているので識別情報の確認が可能である。   In the battery pack of the present invention, the metal conductive connecting member that forms the conductive connection between the battery and the circuit board is provided with an identification portion, and the identification portion is lower than the temperature at which the metal conductive connecting member melts. The battery identification body is covered with a substance that melts or decomposes at a temperature, and is recognized as a simple conductive connection member from the outer surface. The identification information can be confirmed only after the connecting body is heated to a predetermined temperature and the member covering the identification portion is removed. Further, even when the battery pack ignites and burns, the identification information for the battery and the identification part are made of a metal member, so that identification information can be confirmed.

本発明は、電池あるいは電池パックの識別体として、電池、電池パックの導電接続を形成するために使用する金属製接続体に識別部を設けて電池用識別体とし、識別部の表面を金属製導電接続体を構成する金属材料の融点よりも融点が低い金属材料、または該金属材料の融点よりも低い温度で分解する物質によって被覆したので、識別部の存在を容易に認識することはできず、また電池パックが発火等によって燃焼した場合でも、識別部を被覆した物質を除去することによって電池、あるいは電池パックの製造番号等の情報の識別が可能であることを見出したものである。   The present invention provides an identification part for a battery or battery pack provided with an identification part on a metal connector used for forming a conductive connection of the battery or battery pack, and the surface of the identification part is made of metal. Since it is covered with a metal material having a melting point lower than the melting point of the metal material constituting the conductive connection body or a substance that decomposes at a temperature lower than the melting point of the metal material, the presence of the identification portion cannot be easily recognized. Further, the present inventors have found that even when a battery pack burns due to ignition or the like, it is possible to identify information such as a battery or a battery pack serial number by removing a substance covering the identification portion.

以下に、図面を参照して本発明を説明する。
図１は、本発明の電池パックの一実施例を説明する図であり、電池パックの外装部材を取り除いて電池パックを示した図である。
電池パック１の内部に収納した電池３の一方の端子部に、金属製導電接続体４からなる電池用識別体２の一端が導電接続され、他端が電池の保護装置等を設けた回路基板５に接続されている。 The present invention will be described below with reference to the drawings.
FIG. 1 is a view for explaining an embodiment of the battery pack of the present invention, and is a view showing the battery pack with the exterior member of the battery pack being removed.
A circuit board in which one end of a battery identification body 2 formed of a metal conductive connection body 4 is conductively connected to one terminal portion of a battery 3 housed in the battery pack 1 and the other end is provided with a battery protection device or the like. 5 is connected.

電池用識別体２には識別部６が設けられており、識別部６は文字、記号を金属表面に設けた凹凸、あるいは穴によって形成されている。識別部６の表面は金属製導電接続体３を構成する金属材料と同様の外観を呈する金属材料、あるいは接着性組成物の被覆層７によって充填および被覆されており、識別情報は外観からは確認することができないものとされている。
識別部６は、金属製導電接続体４の一部を、切削、刻印、レーザ加工、エッチング等の方法によって文字、記号等を形成することによって作製することができる。 The battery identification body 2 is provided with an identification portion 6, and the identification portion 6 is formed by irregularities or holes provided with characters and symbols on a metal surface. The surface of the identification part 6 is filled and covered with a metal material having an appearance similar to that of the metal material constituting the metal conductive connector 3 or a coating layer 7 of an adhesive composition, and the identification information is confirmed from the appearance. It is supposed to be impossible.
The identification unit 6 can be produced by forming a character, a symbol, or the like on a part of the metal conductive connector 4 by a method such as cutting, engraving, laser processing, or etching.

また、被覆層７に使用する金属材料としては、電池用識別体を構成する金属製導電接続体４と同様の表面状態を呈する金属材料を用いることが好ましい。例えば、ニッケル系の金属製導電接続体の場合には、半田によって識別部の充填および被覆を行うことができる。
半田は、回路基板との接合に使用する材料であるので、半田が付着していることから直ちにその下部に識別部が存在することを認識される可能性は小さい。また、金属製導電接続体の表面と区別しがたい半田を選択することにより識別部をより目立たないものとすることができる。 Moreover, as a metal material used for the coating layer 7, it is preferable to use a metal material exhibiting the same surface state as the metal conductive connector 4 constituting the battery identification body. For example, in the case of a nickel-based metallic conductive connector, the identification portion can be filled and covered with solder.
Since the solder is a material used for bonding to the circuit board, it is unlikely that the identification part immediately exists below the solder because the solder is attached. Further, by selecting a solder that is difficult to distinguish from the surface of the metal conductive connector, the identification portion can be made less noticeable.

また、識別部の被覆は、半田のような金属に限らず、金属粉末あるいは顔料を金属製導電接続体の融点よりも低い温度で分解する結着剤とを配合した組成物を用いて行っても良い。このような組成物としては、硬化後に金属製導電接続体の金属材料と同様の表面状態を呈する材料を用いることが好ましい。   In addition, the coating of the identification part is not limited to a metal such as solder, and is performed using a composition in which a metal powder or pigment is blended with a binder that decomposes at a temperature lower than the melting point of the metal conductive connector. Also good. As such a composition, it is preferable to use a material that exhibits a surface state similar to that of the metal material of the metal conductive connector after curing.

図２は、本発明の電池用識別体を説明する図である。
図２（Ａ）は、電池用識別体を説明する斜視図であり、図２（Ｂ）は、図２（Ａ）におけるＡ−Ａ’線での断面図である。
また、図２（Ｃ）は、識別部を金属材料によって被覆した電池用識別体を説明する図であり、図２（Ｄ）は、図２（Ｃ）におけるＡ−Ａ’線での断面図である。また、図２（Ｅ）は、識別部の他の例の断面を説明する図である。
図２（Ａ）に示すように、電池用識別体２は、金属製導電接続体４の表面に識別部６が形成されている。識別部６は、図２（Ｂ）に示すように金属材料に貫通孔８を形成して文字、記号等を表示している。 FIG. 2 is a diagram illustrating the battery identifier of the present invention.
FIG. 2A is a perspective view illustrating a battery identification body, and FIG. 2B is a cross-sectional view taken along the line AA ′ in FIG.
FIG. 2C is a diagram for explaining a battery identification body in which the identification portion is covered with a metal material. FIG. 2D is a cross-sectional view taken along the line AA ′ in FIG. It is. FIG. 2E is a diagram illustrating a cross section of another example of the identification unit.
As shown in FIG. 2A, the battery identification body 2 has an identification portion 6 formed on the surface of a metal conductive connection body 4. As shown in FIG. 2B, the identification unit 6 forms a through hole 8 in a metal material and displays characters, symbols, and the like.

そして、識別部６に金属材料形成した貫通孔８には、図２（Ｃ）及び図２（Ｄ）に示すように、金属製導電接続体４よりも融点が低い金属材料、または金属製導電接続体４の融点よりも低い温度で分解する物質によって充填および被覆されて被覆層７が形成されて識別部の識別情報は視認できないものとされている。   Then, in the through hole 8 formed with a metal material in the identification part 6, as shown in FIGS. 2C and 2D, a metal material having a melting point lower than that of the metal conductive connector 4, or a metal conductive material is used. The covering layer 7 is formed by being filled and covered with a substance that decomposes at a temperature lower than the melting point of the connection body 4 so that the identification information of the identification portion cannot be visually recognized.

被覆層７に使用する金属材料としては、例えばニッケル系の金属製導電接続体４の場合には、半田を用いることができ、半田によって識別部６の貫通孔８の充填および被覆をすることができる。   As the metal material used for the covering layer 7, for example, in the case of a nickel-based metal conductive connector 4, solder can be used, and the through hole 8 of the identification portion 6 can be filled and covered with solder. it can.

半田は、回路基板との接合に使用する材料であるので、半田が付着していても直ちに識別部であると認識されることはない。更には、半田として硬化後の表面状態が基材と同様のものを選択することによって識別部を目立たないものとすることができる。   Since the solder is a material used for bonding to the circuit board, even if the solder adheres, it is not immediately recognized as the identification portion. Furthermore, the identification part can be made inconspicuous by selecting a surface condition after curing similar to that of the base material.

図２（Ｅ）は、他の形態の識別部を説明する図であり、識別部の断面を説明する図である。
識別部６は、板状体の一方の面に文字等からなる凹凸部９を形成して識別情報を形成したものである。凹凸部９には、図２（Ｄ）で示したものと同様に被覆層７が形成されて識別情報が視認できないようにされている。
また、図２（Ｅ）に示した識別部は、板状体の一方の面に凹凸を形成したものであるので、厚みが大きな板状体の場合に好適である。 FIG. 2E is a diagram for explaining another form of the identification unit, and is a diagram for explaining a cross section of the identification unit.
The identification part 6 forms the uneven | corrugated | grooved part 9 which consists of a character etc. in one surface of a plate-shaped object, and forms identification information. A coating layer 7 is formed on the concavo-convex portion 9 in the same manner as shown in FIG. 2D so that the identification information cannot be visually recognized.
In addition, the identification portion shown in FIG. 2E is suitable for a plate-like body having a large thickness because it has irregularities formed on one surface of the plate-like body.

本発明の識別部は、金属製導電接続体の一部に識別部を形成して表面を周囲と区別がつかないように被覆したので、識別部を発見される可能性は小さいものである。また、識別部に形成する文字、記号等の偽造を困難なものとしたり、個体識別情報を含んだものとすることによって電池用識別体が偽造された場合でも、真正品、偽造品の区別が可能なものとすることが好ましい。   In the identification unit of the present invention, since the identification unit is formed on a part of the metal conductive connector and the surface is covered so as to be indistinguishable from the surroundings, the possibility of finding the identification unit is small. In addition, even if the forgery of characters, symbols, etc. formed on the identification part is difficult or the identification object for the battery is forged by including individual identification information, it is possible to distinguish between genuine products and counterfeit products. It is preferable to make it possible.

図３は、本発明の電池用識別体を設けた電池パックと電池用識別体を設けない電池パックを説明する図である。
本発明の電池用識別体を設けた電池パックは、発火によって燃焼した後に、図３（Ａ）に示すように、回路基板５は大きく燃焼するが、燃焼の熱によって電池用識別体２に形成した識別部６を被覆した被覆層が溶融して識別情報の確認が可能なる。また、加熱時間が短く被覆した金属の溶融が不十分で識別部が表れていない場合には、半田除去器、半田吸取線等を利用して識別部を被覆した金属を除去することによって、容易に識別部の識別情報の確認が可能となる。 FIG. 3 is a diagram illustrating a battery pack provided with the battery identifier of the present invention and a battery pack not provided with the battery identifier.
In the battery pack provided with the battery identification body of the present invention, after burning by ignition, as shown in FIG. 3 (A), the circuit board 5 burns greatly, but is formed in the battery identification body 2 by the heat of combustion. The coating layer covering the identification unit 6 melts and the identification information can be confirmed. Also, if the identification part is not visible due to the short heating time of the coated metal, it is easy to remove the metal covering the identification part using a solder remover, solder absorption line, etc. In addition, the identification information of the identification unit can be confirmed.

これに対して、従来例のように回路基板に搭載した認証チップ１４、あるいは識別形状部１１によって識別する場合には、図３（Ｂ）に示すように燃焼によってそれらの機能を果たさなくなる。   On the other hand, when the identification chip 14 mounted on the circuit board or the identification shape portion 11 is identified as in the conventional example, those functions are not performed by combustion as shown in FIG.

本発明は、金属製導電接続体の一部に、切削、刻印、レーザ加工、エッチング等の方法によって識別力がある文字、記号からなる識別部を形成し、識別部には金属製導電接続体と同様の表面特性を有し、金属製導電接続体の融点よりも融点が低い金属等の材料によって被覆した電池用識別体を電池、あるいは電池パックの導電接続体として使用したものであり、識別部は金属材料と同様の材料で被覆されているので、第三者からは識別情報を発見されにくいものとすることができる。また、電池用識別体は電池パックの発火等によって燃えた場合でも識別部は機能し、偽造品であるか否かを発見することが可能となり、製品に対する信頼性を高めることができる。   The present invention forms an identification part made up of letters and symbols having discriminating power by a method such as cutting, engraving, laser processing, etching, etc. on a part of a metal conductive connection body, and the metal conductive connection body is formed in the identification part Is used as a battery or battery pack conductive connector, which has the same surface characteristics and is covered with a metal or other material having a melting point lower than the melting point of the metal conductive connector. Since the portion is coated with the same material as the metal material, it is difficult for a third party to find the identification information. Further, even when the battery identifier is burned by the ignition of the battery pack or the like, the identifier can function to detect whether or not it is a counterfeit product, thereby improving the reliability of the product.

図１は、本発明の電池パックの一実施例を説明する図であり、電池パックの外装部材を取り除いて示した図である。FIG. 1 is a view for explaining an embodiment of the battery pack of the present invention, and is a view showing the battery pack with the exterior member removed. 図２は、本発明の電池用識別体を説明する図である。FIG. 2 is a diagram illustrating the battery identifier of the present invention. 図３は、本発明の電池用識別体を設けた電池パックと電池用識別体を設けない電池パックを説明する図である。FIG. 3 is a diagram illustrating a battery pack provided with the battery identifier of the present invention and a battery pack not provided with the battery identifier. 図４は、従来の電池パックの一例を説明する図である。FIG. 4 is a diagram illustrating an example of a conventional battery pack.

符号の説明Explanation of symbols

１…電池パック、２…電池用識別体、３…電池、４…金属製導電接続体、５…回路基板、６…識別部、７…被覆層、８…貫通孔、９…凹凸部、１１…識別形状部、１２…ホログラムシール、１３…不可視印刷部、１４…認証チップ   DESCRIPTION OF SYMBOLS 1 ... Battery pack, 2 ... Battery identification body, 3 ... Battery, 4 ... Metal conductive connection body, 5 ... Circuit board, 6 ... Identification part, 7 ... Covering layer, 8 ... Through-hole, 9 ... Uneven part, 11 ... Identification shape part, 12 ... Hologram seal, 13 ... Invisible printing part, 14 ... Authentication chip

Claims (3)

電池用識別体において、電池の導電接続用の金属製導電接続体面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆されたことを特徴とする電池用識別体。 The battery identification body has an identification portion on the surface of the metal conductive connection body for conductive connection of the battery, and the identification portion is covered with a substance that melts or decomposes at a temperature lower than the temperature at which the metal conductive connection body melts. A battery identifier characterized by the above. 電池において、電池端子と電池要素との導電接続用の金属製導電接続体の表面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆された電池用識別体を備えたことを特徴とする電池。 The battery has an identification portion on the surface of the metal conductive connector for conductive connection between the battery terminal and the battery element, and the identification portion melts or decomposes at a temperature lower than the temperature at which the metal conductive connector melts. A battery comprising a battery identifier coated with a substance. 電池パックにおいて、外装体内に、電池、および回路基板を収納し、回路基板と電池との間の導電接続を形成する導電接続用の金属製導電接続体の表面に識別部を有し、該識別部は金属製導電接続体が溶融する温度よりも低い温度で溶融もしくは分解する物質によって被覆された電池用識別体を備えたことを特徴とする電池パック。 In the battery pack, the battery and the circuit board are accommodated in the exterior body, and an identification portion is provided on the surface of the metal conductive connector for conductive connection that forms a conductive connection between the circuit board and the battery. The battery pack is characterized in that the portion includes a battery identification body covered with a substance that melts or decomposes at a temperature lower than a temperature at which the metal conductive connector is melted.
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Publication number Priority date Publication date Assignee Title
JP2012113854A (en) * 2010-11-22 2012-06-14 Hitachi Vehicle Energy Ltd Secondary battery cell and apparatus for manufacturing the same
KR101450221B1 (en) 2013-04-17 2014-10-15 주식회사 아이티엠반도체 Package of battery protection circuits module

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JP2004071513A (en) * 2002-08-09 2004-03-04 Sanyo Gs Soft Energy Co Ltd Battery
JP2004106193A (en) * 2002-09-13 2004-04-08 Toppan Printing Co Ltd Information recording medium, its manufacturing method, and authenticity judging method

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JPH1064525A (en) * 1996-08-22 1998-03-06 Dainippon Printing Co Ltd Electrode plate for nonaqueous electrolyte secondary battery and manufacture thereof
JP2003217533A (en) * 2002-01-25 2003-07-31 Sanyo Electric Co Ltd Battery in case
JP2004071513A (en) * 2002-08-09 2004-03-04 Sanyo Gs Soft Energy Co Ltd Battery
JP2004106193A (en) * 2002-09-13 2004-04-08 Toppan Printing Co Ltd Information recording medium, its manufacturing method, and authenticity judging method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012113854A (en) * 2010-11-22 2012-06-14 Hitachi Vehicle Energy Ltd Secondary battery cell and apparatus for manufacturing the same
KR101450221B1 (en) 2013-04-17 2014-10-15 주식회사 아이티엠반도체 Package of battery protection circuits module
US10950845B2 (en) 2013-04-17 2021-03-16 Itm Semiconductor Co., Ltd Battery protection circuit module package

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