JPH08106886A - Battery - Google Patents
BatteryInfo
- Publication number
- JPH08106886A JPH08106886A JP6238729A JP23872994A JPH08106886A JP H08106886 A JPH08106886 A JP H08106886A JP 6238729 A JP6238729 A JP 6238729A JP 23872994 A JP23872994 A JP 23872994A JP H08106886 A JPH08106886 A JP H08106886A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- silicone gel
- electrolyte
- sealing part
- case
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、安全性能を改善した電
池及び電池パックに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to batteries and battery packs having improved safety performance.
【０００２】[0002]
【従来の技術】近年、ビデオカメラや携帯電話、ノート
型コンピューター等の電子機器の高性能化、小型化が著
しい。これらの電子機器の電源となる電池の開発も活発
に行われ、従来のニッケル−カドミウム電池に加えて、
リチウム電池、リチウムイオン電池や、ニッケル−水素
電池等が実現した。そして、それらの開発が進むにつれ
円筒型電池を始め、薄型、角型、積層状、シート状電池
等様々なタイプの電池も出現してきた。2. Description of the Related Art In recent years, electronic devices such as video cameras, mobile phones, and notebook computers have been significantly improved in performance and miniaturization. Batteries that will be the power source for these electronic devices are being actively developed, and in addition to conventional nickel-cadmium batteries,
Lithium batteries, lithium-ion batteries, nickel-hydrogen batteries, etc. have been realized. Then, as their development progressed, various types of batteries such as a cylindrical battery, a thin battery, a prismatic battery, a laminated battery, and a sheet battery have appeared.
【０００３】このように携帯機器とその電源用電池が発
展する中、輸送中や使用中の振動、落下時の衝撃に対す
る電池の安全性確保が重要な課題となってきた。このた
め従来から振動・衝撃緩衝剤で電池や電池パックを保護
することが行われてきた。振動・衝撃緩衝剤としては、
エポキシ樹脂、アクリル樹脂、フェノール樹脂等の樹脂
類、ＳＢＲやブチルゴム等の合成ゴム、シリコーン等が
知られている（特開昭６０−１４８０７０号公報、特開
昭６３−１６４１５９号公報）。With the development of portable devices and batteries for their power supplies, it has become an important issue to secure the safety of batteries against vibration during transportation and use, and impact when dropped. For this reason, it has been conventionally practiced to protect batteries and battery packs with a vibration / shock buffer. As a vibration / shock buffer,
Resins such as epoxy resin, acrylic resin and phenol resin, synthetic rubbers such as SBR and butyl rubber, silicones and the like are known (JP-A-60-148070, JP-A-63-164159).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、電池の
エネルギー高密度化が加速度的に進むに伴い、安全面へ
の配慮の必要性も更に高まり、上記した振動・衝撃緩衝
剤による保護では不充分となっていた。とりわけ携帯機
器に使用される電池の落下時の安全性は大きな課題とな
っており、封口部に横方向の衝撃が加わった時に封口部
から電解液漏れが起こるという問題も生じている。However, as the energy density of batteries is accelerated, the need for consideration for safety is further increased, and the above-mentioned protection by the vibration / shock buffer is not sufficient. Was becoming. In particular, safety when a battery used in a mobile device is dropped has become a major issue, and there is also a problem that electrolyte leakage from the sealing part occurs when a lateral impact is applied to the sealing part.
【０００５】本発明は、上記の問題を解決するためにな
されたものであり、電池落下時に起こる電解液漏れを防
ぎ、より安全性の高い電池及び電池パックを提供するも
のである。The present invention has been made in order to solve the above problems, and provides a battery and a battery pack having higher safety by preventing leakage of an electrolytic solution that occurs when a battery is dropped.
【０００６】[0006]
【課題を解決するための手段】本発明は下記のとおりで
ある。 １．正極と負極との間にセパレーターを介して構成した
電極体と、電解液とを外装缶内に収容した電池におい
て、該電池の封口部にシリコーンゲルを備えたことを特
徴する電池。 ２．正極と負極との間にセパレーターを介して構成した
電極体と、電解液とを外装缶内に収容した電池と、該電
池を収納する電池ケースとを有し、該電池と該電池ケー
スとの間隙部にシリコーンゲルを備えた電池パック。The present invention is as follows. 1. What is claimed is: 1. A battery in which an electrode body configured with a separator interposed between a positive electrode and a negative electrode and an electrolytic solution are contained in an outer can, wherein a sealing portion of the battery is provided with a silicone gel. 2. An electrode body configured with a separator interposed between a positive electrode and a negative electrode, a battery containing an electrolytic solution in an outer can, and a battery case housing the battery, and the battery and the battery case. Battery pack with silicone gel in the gap.
【０００７】本発明で用いるシリコーンゲルは、シリコ
ーンゴムとシリコーン油の中間的な性質を持った固液共
存型材料であって、オルガノポリシロキサンをポリハイ
ドロジエンシロキサンで架橋させたものである。一般の
ヒドロゲルのような水分子と極性基間の水素結合がな
く、ポリマー骨格が熱的に安定であるためゲル状態を広
い温度範囲で維持することができ、また、オルガノポリ
シロキサンとポリハイドロジエンシロキサンの分子量や
架橋状態を変えることでゴム状から液体状まで自由に硬
度や粘度を変えることができるという優れた特性を有し
ている。また、このシリコーンゲルとポリマーや微小中
空球体等とを複合材料として用いることもできる。The silicone gel used in the present invention is a solid-liquid coexisting material having intermediate properties between silicone rubber and silicone oil, and is obtained by crosslinking organopolysiloxane with polyhydrodienesiloxane. Since there is no hydrogen bond between water molecules and polar groups as in general hydrogels, and the polymer skeleton is thermally stable, the gel state can be maintained over a wide temperature range, and organopolysiloxane and polyhydrogen It has the excellent property that the hardness and viscosity can be freely changed from rubber to liquid by changing the molecular weight and cross-linking state of siloxane. Further, this silicone gel and a polymer, a micro hollow sphere, or the like can be used as a composite material.
【０００８】本発明において、電池の封口部７とは図１
に示されるように電池の上蓋と外装缶とが接合している
周辺をいう。本発明は、アルカリ一次電池、ニッケル−
カドミウム二次電池、鉛蓄電池、リチウム一次電池、リ
チウム二次電池、ニッケル−水素二次電池、リチウムイ
オン二次電池等に適用可能であるが、リチウムイオン二
次電池の落下時の安全性に最も効果を発揮する。In the present invention, the sealing portion 7 of the battery is shown in FIG.
As shown in, the area around the upper lid of the battery and the outer can is joined. The present invention relates to an alkaline primary battery, nickel-
It can be applied to cadmium secondary battery, lead acid battery, lithium primary battery, lithium secondary battery, nickel-hydrogen secondary battery, lithium ion secondary battery, etc. Be effective.
【０００９】リチウムイオン二次電池の正極活物質とし
ては特に限定されないが、電気化学的にＬｉイオンがイ
ンターカレート、デインターカレートし得る複合酸化物
が好ましい。かかる複合酸化物として、ＬｉＣｏＯ2 、
ＬｉＮｉＯ2 、ＬｉＭｎＯ2、ＬｉＭｎ2 Ｏ4 、Ｌｉx
Ｃｏy Ａz Ｏ2 （但し、ＡはＡｌ、Ｉｎ、Ｓｎ、Ｎｉの
群から選ばれた少なくとも一つを表し、ｘ、ｙ、ｚは各
々０．０５≦ｘ≦１．１０、０．８５≦ｙ≦１．００、
０．００１≦ｚ≦０．５０の数を表す。）等のリチウム
含有複合酸化物が挙げられる。The positive electrode active material of the lithium ion secondary battery is not particularly limited, but a complex oxide capable of electrochemically intercalating and deintercalating Li ions is preferable. As such a composite oxide, LiCoO 2 ,
LiNiO 2 , LiMnO 2 , LiMn 2 O 4 , Li x
Co y A z O 2 (where A represents at least one selected from the group consisting of Al, In, Sn, and Ni, and x, y, and z are 0.05 ≦ x ≦ 1.10 and 0.85, respectively). ≦ y ≦ 1.00,
It represents a number of 0.001 ≦ z ≦ 0.50. ) And other lithium-containing composite oxides.
【００１０】また、負極活物質としては特に限定されな
いが、ピッチコークス、ニードルコークス、石油コーク
ス、有機高分子焼成体、グラファイト等の炭素質材料が
好ましく、更にかかる炭素質材料中に、ホウ素、窒素、
リン、硫黄等の原子が含まれていても良い。また、非水
系電解液における電解質として、例えばＬｉＣｌＯ4 、
ＬｉＡｓＦ 6 、ＬｉＰＦ6 、ＬｉＢＦ4 等のリチウム塩
の１種または２種以上を混合したものが使用できる。ま
た、溶媒として、例えばプロピレンカーボネート、エチ
レンカーボネート、ジメチルカーボネート、ジエチルカ
ーボネート、γ−ブチロラクトン、テトラヒドロフラ
ン、１，３−ジオキソラン、スルホラン、アセトニトリ
ル、プロピオニトリル、ギ酸メチル、酢酸メチル、酢酸
エチルなどの１種または２種以上を混合したものが使用
できる。The negative electrode active material is not particularly limited.
Potato coke, needle coke, petroleum coke
Carbonaceous materials such as graphite, organic polymer fired bodies, and graphite
Preferably, further, in such carbonaceous material, boron, nitrogen,
Atoms such as phosphorus and sulfur may be contained. Also non-water
As the electrolyte in the system electrolyte, for example, LiClOFour,
LiAsF 6, LiPF6, LiBFFourLithium salts such as
One of them or a mixture of two or more thereof can be used. Well
Also, as the solvent, for example, propylene carbonate, ethyl
Ren carbonate, dimethyl carbonate, diethyl carbonate
Carbonate, γ-butyrolactone, tetrahydrofura
, 1,3-dioxolane, sulfolane, acetonitril
, Propionitrile, methyl formate, methyl acetate, acetic acid
Use one or a mixture of two or more such as ethyl
it can.
【００１１】また、本発明に用いるセパレーターとして
は、ポリエチレン、ポリプロピレン等のポリオレフィン
の微多孔膜の１種の単独膜又は２種以上の張り合わせ
膜、混合膜が使用できる。また、本発明に用いる外装缶
の材質としては、ステンレス鋼、ニッケル鍍金鋼、鉄鋼
等が用いられる。Further, as the separator used in the present invention, one kind of microporous film of polyolefin such as polyethylene and polypropylene, a single kind of film, or two or more kinds of laminated film and mixed film can be used. Further, as the material of the outer can used in the present invention, stainless steel, nickel-plated steel, steel and the like are used.
【００１２】電池の封口部へシリコーンゲル装着する場
合の方法としては、該封口部にコーティングしても良い
し貼付しても良い。また、電池と電池ケースの間隙にシ
リコーンゲルを装着する場合の方法としては、電池の外
装缶外面及び／又は電池ケース内面にシリコーンゲルを
コーティングしても良いし貼付しても良い。本発明に用
いるシリコーンゲルは、ポリマーの分子量や架橋状態を
変えることで、硬度や粘度を自由に設計できるため、コ
ーティングや貼付時にも溶媒や接着剤を必要としないと
いう優れた特徴を有する。As a method of attaching the silicone gel to the sealing portion of the battery, the sealing portion may be coated or attached. In addition, as a method for mounting the silicone gel in the gap between the battery and the battery case, the outer surface of the outer can of the battery and / or the inner surface of the battery case may be coated or attached with the silicone gel. The silicone gel used in the present invention has an excellent feature that it does not require a solvent or an adhesive at the time of coating or sticking because the hardness and the viscosity can be freely designed by changing the molecular weight and the crosslinked state of the polymer.
【００１３】本発明の特徴は、シリコーンゲルを用いる
ことにより極めて薄い厚みでも十分な耐衝撃性が得られ
る点にあり、その際のシリコーンゲルの厚みは、０．１
〜１．５ｍｍが好ましく、更には０．３〜１ｍｍが好ま
しい。０．１ｍｍよりも薄ければ衝撃吸収性が劣り、
１．５ｍｍより大きければ嵩ばり、電池の小型化に影響
する。A feature of the present invention is that by using a silicone gel, sufficient impact resistance can be obtained even with an extremely thin thickness. At that time, the thickness of the silicone gel is 0.1.
˜1.5 mm is preferable, and 0.3 to 1 mm is more preferable. If it is thinner than 0.1 mm, shock absorption is poor,
If it is larger than 1.5 mm, it is bulky, which affects the miniaturization of the battery.
【００１４】落下時の安全性は電池や電池パックの形状
にも依存しており、円筒型や薄型、角型の電池では、底
部（封口部と反対側）から落下すると、一端底部が着地
した後倒れて封口部が着地面に接触する際に、封口部に
横方向の衝撃が加わり、封口部からの電解液漏れが起こ
る。本発明は、円筒型、薄型、角型等の形状の電池に好
ましく適用できるが、さらに好ましくは外装缶形状比＝
（外装缶の高さ）／（外装缶径または外装缶巾）が２．
５〜１０、特に好ましくは３〜７の形状の電池に適用で
き、この場合に最も効果を発する。The safety at the time of dropping depends on the shape of the battery or the battery pack, and in the case of a cylindrical, thin, or rectangular battery, when the battery is dropped from the bottom (the side opposite to the sealing part), the bottom is landed. When the sealing portion comes to the ground and contacts the landing surface after falling backward, a lateral impact is applied to the sealing portion, and the electrolyte leaks from the sealing portion. INDUSTRIAL APPLICABILITY The present invention can be preferably applied to batteries having a cylindrical shape, a thin shape, a rectangular shape, and the like, more preferably, the outer can shape ratio
(Height of outer can) / (outer can diameter or outer can width) is 2.
It can be applied to a battery having a shape of 5 to 10, particularly preferably 3 to 7, and in this case, the effect is most exerted.
【００１５】以下実施例により本発明を更に詳しく説明
する。The present invention will be described in more detail with reference to the following examples.
【００１６】[0016]
【００１７】[0017]
【実施例１】Ｌｉ1.03Ｃｏ0.92Ｓｎ0.02Ｏ2 の組成を有
する複合酸化物と導電剤を混合した後、バインダーと混
合し正極活物質塗工液を得た。ニードルコークス粉砕品
とバインダーを混合し、負極活物質塗工液を得た。塗工
機を用いて金属集電体に上記２種の塗工液を塗布し、
正、負電極を得た。この正、負電極を、ポリエチレン微
多孔膜のセパレーターを間に挟み、コイル状に捲回し電
極体を作製して外装缶に挿入した。このとき外装缶形状
比は５．６であった。この外装缶内に、プロピレンカー
ボネート／エチレンカーボネート／γ−ブチロラクトン
の１：１：２（重量比）の混合溶剤にＬｉＢＦ4 を１Ｍ
濃度に溶かしたものを電解液として加えた後封口し電池
とした。この電池の封口部周囲にシリコーンゲルを０．
３ｍｍの厚さになるように貼付して、図１に示す本発明
の電池を試作した。この電池を、コンクリート板上に底
部を下にして自然落下させたところ、１．４ｍの高さま
で電解液の漏液はなかった。Example 1 A composite oxide having a composition of Li 1.03 Co 0.92 Sn 0.02 O 2 and a conductive agent were mixed and then mixed with a binder to obtain a coating solution for a positive electrode active material. The crushed product of needle coke and a binder were mixed to obtain a coating liquid for negative electrode active material. Apply the above two kinds of coating liquid to the metal current collector using a coating machine,
Positive and negative electrodes were obtained. The positive and negative electrodes were wound in a coil shape with a polyethylene microporous membrane separator sandwiched therebetween to prepare an electrode body, which was then inserted into an outer can. At this time, the outer can shape ratio was 5.6. Into this outer can, 1M LiBF 4 was added to a mixed solvent of propylene carbonate / ethylene carbonate / γ-butyrolactone 1: 1: 2 (weight ratio).
After adding what was dissolved in the concentration as an electrolytic solution, it was sealed and used as a battery. Silicone gel around the sealing part of this battery
The battery of the present invention shown in FIG. 1 was produced as a prototype by sticking it so as to have a thickness of 3 mm. When this battery was dropped naturally on the concrete plate with the bottom part facing downward, no electrolyte leaked up to a height of 1.4 m.
【００１８】[0018]
【実施例２〜６及び比較例１】実施例１において、表１
に記載の通りにシリコーンゲルの厚さを変えた以外は、
全く同じ操作を行い落下試験を行った。その結果も合わ
せて表１に示す。Examples 2 to 6 and Comparative Example 1 In Example 1, Table 1
Except that the thickness of the silicone gel was changed as described in
Exactly the same operation was performed and a drop test was performed. The results are also shown in Table 1.
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【実施例７】実施例１において作製したシリコーンゲル
貼付前の電池２こを電池ケースに収納し、その電池ケー
ス内部に厚さ０．３ｍｍのシリコンゲルを貼付して電池
パックとした。作製した電池パックの落下試験を実施例
１と同様の方法で行ったところ、１．５ｍの高さまで電
解液漏れはなかった。[Embodiment 7] Two batteries before attachment of the silicone gel prepared in Example 1 were housed in a battery case, and a 0.3 mm-thick silicon gel was attached inside the battery case to obtain a battery pack. When the drop test of the manufactured battery pack was performed in the same manner as in Example 1, there was no electrolyte leakage up to a height of 1.5 m.
【００２１】[0021]
【実施例８〜１２および比較例２】実施例７において、
表２に記載の通りにシリコーンゲルの厚さを変えた以外
は、全く同じ操作を行い落下試験を行った。その結果も
合わせて表２に示す。Examples 8 to 12 and Comparative Example 2 In Example 7,
Except that the thickness of the silicone gel was changed as described in Table 2, the same operation was performed and a drop test was performed. The results are also shown in Table 2.
【００２２】[0022]
【表２】 [Table 2]
【００２３】[0023]
【比較例３〜５】実施例１〜３においてシリコーンゲル
の代わりにブチルゴムを用いた以外は全く同じ操作を行
い落下試験を行った。実施例１〜３と比較例３〜５の結
果を図３に示す。[Comparative Examples 3 to 5] A drop test was performed by the same operation as in Examples 1 to 3 except that butyl rubber was used instead of the silicone gel. The results of Examples 1 to 3 and Comparative Examples 3 to 5 are shown in FIG.
【００２４】[0024]
【発明の効果】電池の封口部または電池と電池ケースの
間隙ににシリコーンゲルをコーティングまたは貼付する
ことによって、落下時の漏液を防止し、安全性の優れた
電池とすることができ、大いに有用である。EFFECTS OF THE INVENTION By coating or sticking silicone gel on the sealing portion of the battery or the gap between the battery and the battery case, it is possible to prevent liquid leakage at the time of dropping and to provide a battery with excellent safety. It is useful.
【図１】本発明の電池の一例を示す断面概略図である。FIG. 1 is a schematic sectional view showing an example of a battery of the present invention.
【図２】本発明の電池パックの一例を示す断面概略図で
ある。FIG. 2 is a schematic cross-sectional view showing an example of the battery pack of the present invention.
【図３】実施例１〜３と比較例３〜５の落下試験の結果
を示すグラフ図である。FIG. 3 is a graph showing the results of drop tests of Examples 1 to 3 and Comparative Examples 3 to 5.
１ 正極 ２ セパレーター ３ 負極 ４ 絶縁板 ５ 負極リード ６ 上蓋 ７ 封口部 ８ シリコーンゲル ９ 外装缶 １０ 電池ケース １１ 電池 １２ 実施例１〜３ １３ 比較例３〜５ DESCRIPTION OF SYMBOLS 1 Positive electrode 2 Separator 3 Negative electrode 4 Insulating plate 5 Negative electrode lead 6 Upper lid 7 Sealing part 8 Silicone gel 9 Outer can 10 Battery case 11 Battery 12 Examples 1 to 13 13 Comparative examples 3 to 5
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｍ 2/10 Ｅ 10/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location H01M 2/10 E 10/02
Claims (2)
て構成した電極体と、電解液とを外装缶内に収容した電
池において、該電池の封口部にシリコーンゲルを備えた
ことを特徴する電池。1. A battery in which an electrode body constituted by interposing a separator between a positive electrode and a negative electrode and an electrolyte solution is contained in an outer can, wherein a sealing portion of the battery is provided with a silicone gel. battery.
て構成した電極体と、電解液とを外装缶内に収容した電
池と、該電池を収納する電池ケースとを有し、該電池と
該電池ケースとの間隙部にシリコーンゲルを備えた電池
パック。2. A battery having an electrode body formed between a positive electrode and a negative electrode with a separator interposed between the positive electrode and the negative electrode, an electrolytic solution contained in an outer can, and a battery case containing the battery. A battery pack comprising a silicone gel in a gap between the battery case and the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23872994A JP3258826B2 (en) | 1994-10-03 | 1994-10-03 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23872994A JP3258826B2 (en) | 1994-10-03 | 1994-10-03 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08106886A true JPH08106886A (en) | 1996-04-23 |
| JP3258826B2 JP3258826B2 (en) | 2002-02-18 |
Family
ID=17034395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23872994A Expired - Lifetime JP3258826B2 (en) | 1994-10-03 | 1994-10-03 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3258826B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000021374A (en) * | 1997-11-05 | 2000-01-21 | Philips Consumer Commun France | Battery unit and portable battery type device containing this battery unit |
| US6586912B1 (en) | 2002-01-09 | 2003-07-01 | Quallion Llc | Method and apparatus for amplitude limiting battery temperature spikes |
| US6891353B2 (en) | 2001-11-07 | 2005-05-10 | Quallion Llc | Safety method, device and system for an energy storage device |
| US7443136B2 (en) | 2002-01-09 | 2008-10-28 | Quallion Llc | Method and device employing heat absorber for limiting battery temperature spikes |
| US7592776B2 (en) | 2001-11-07 | 2009-09-22 | Quallion Llc | Energy storage device configured to discharge energy in response to unsafe conditions |
| JP2011077416A (en) * | 2009-09-30 | 2011-04-14 | Nippon Chemicon Corp | Seal for energy storage device |
| WO2012081173A1 (en) * | 2010-12-16 | 2012-06-21 | パナソニック株式会社 | Battery pack |
| EP4071908A1 (en) | 2021-03-26 | 2022-10-12 | Saft | Material for wedging of electrochemical elements in a battery |
-
1994
- 1994-10-03 JP JP23872994A patent/JP3258826B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000021374A (en) * | 1997-11-05 | 2000-01-21 | Philips Consumer Commun France | Battery unit and portable battery type device containing this battery unit |
| JP4514845B2 (en) * | 1997-11-05 | 2010-07-28 | エヌエックスピー ビー ヴィ | Battery unit and portable battery-powered device including the battery unit |
| US6891353B2 (en) | 2001-11-07 | 2005-05-10 | Quallion Llc | Safety method, device and system for an energy storage device |
| US7592776B2 (en) | 2001-11-07 | 2009-09-22 | Quallion Llc | Energy storage device configured to discharge energy in response to unsafe conditions |
| US6586912B1 (en) | 2002-01-09 | 2003-07-01 | Quallion Llc | Method and apparatus for amplitude limiting battery temperature spikes |
| US7443136B2 (en) | 2002-01-09 | 2008-10-28 | Quallion Llc | Method and device employing heat absorber for limiting battery temperature spikes |
| US7893659B2 (en) | 2002-01-09 | 2011-02-22 | Quallion Llc | Method and apparatus for amplitude limiting battery temperature spikes |
| JP2011077416A (en) * | 2009-09-30 | 2011-04-14 | Nippon Chemicon Corp | Seal for energy storage device |
| WO2012081173A1 (en) * | 2010-12-16 | 2012-06-21 | パナソニック株式会社 | Battery pack |
| JP5039866B2 (en) * | 2010-12-16 | 2012-10-03 | パナソニック株式会社 | Battery pack |
| EP4071908A1 (en) | 2021-03-26 | 2022-10-12 | Saft | Material for wedging of electrochemical elements in a battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3258826B2 (en) | 2002-02-18 |
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