JPH11238518A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPH11238518A JPH11238518A JP10055872A JP5587298A JPH11238518A JP H11238518 A JPH11238518 A JP H11238518A JP 10055872 A JP10055872 A JP 10055872A JP 5587298 A JP5587298 A JP 5587298A JP H11238518 A JPH11238518 A JP H11238518A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous electrolyte
- battery
- nonaqueous electrolyte
- insulating liquid
- battery according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は非水電解液を使用し
た一次電池及び二次電池の改良に関するもので、誤使用
や過酷環境において、内圧放出機構の作動した電池の安
全性を高めることを目的とするものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a primary battery and a secondary battery using a non-aqueous electrolyte. It is the purpose.
【０００２】[0002]
【従来の技術】大気汚染や二酸化炭素の増加等の環境問
題や、エネルギーの有効利用により、電気自動車の早期
実用化が望まれており、高効率、高出力、高エネルギー
密度、軽量等の特徴を有する優れた電池が望まれてい
る。特に非水電解液を使用した電池は、従来の水溶液電
解液を使用した電池の数倍のエネルギー密度を有するこ
とから、その実用化が待たれている。2. Description of the Related Art Due to environmental problems such as air pollution and an increase in carbon dioxide, and the effective use of energy, early commercialization of electric vehicles is desired, and features such as high efficiency, high output, high energy density, and light weight. An excellent battery having the following is desired. In particular, a battery using a non-aqueous electrolyte has several times the energy density of a battery using a conventional aqueous electrolyte, and therefore its practical application is expected.
【０００３】非水電解液電池の正極活物質には、二硫化
チタンをはじめとして、リチウムコバルト複合酸化物、
リチウムニッケル複合酸化物、リチウムマンガン複合酸
化物、五酸化バナジウム、硫化モリブデン、酸化モリブ
デン等、種々のものが検討されている。[0003] The positive electrode active material of the nonaqueous electrolyte battery includes lithium cobalt composite oxide, including titanium disulfide.
Various materials such as lithium nickel composite oxide, lithium manganese composite oxide, vanadium pentoxide, molybdenum sulfide, and molybdenum oxide have been studied.
【０００４】非水電解液は、非プロトン性の有機溶媒に
電解質となる金属塩を溶解させたものが用いられてい
る。例えば、リチウム塩に関しては、LiClO 4 、LiP
F6 、LiBF4 、LiAsF 6 、LiCF3 SO3 等をプロピレンカ
ーボネート、エチレンカーボネート、1,2-ジメトキシエ
タン、γ- ブチロラクトン、スルホン、スルホラン、ジ
オキソラン、2-メチルテトラヒドロフラン、ジメチルカ
ーボネート、ジエチルカーボネート、メチルエチルカー
ボネート等に溶解させたものが使用されている。As the non-aqueous electrolyte, a solution in which a metal salt serving as an electrolyte is dissolved in an aprotic organic solvent is used. For example, for lithium salts, LiClO 4 , LiP
F 6 , LiBF 4 , LiAsF 6 , LiCF 3 SO 3 etc. are converted to propylene carbonate, ethylene carbonate, 1,2-dimethoxyethane, γ-butyrolactone, sulfone, sulfolane, dioxolan, 2-methyltetrahydrofuran, dimethyl carbonate, diethyl carbonate, methyl What is dissolved in ethyl carbonate or the like is used.
【０００５】非水電解液電池の負極活物質として、従来
より様々な物質が検討されてきたが、高エネルギー密度
が期待されるものとして、リチウム系の負極が注目を浴
び、リチウム金属、リチウム合金、リチウムイオンを保
持させた炭素やアモルファス状の金属酸化物等が検討さ
れている。Various materials have been studied as a negative electrode active material of a non-aqueous electrolyte battery. However, lithium-based negative electrodes have attracted attention as those expected to have a high energy density. Carbon, amorphous metal oxide, and the like holding lithium ions have been studied.
【０００６】非水電解液電池とはその名が示すように水
溶液以外の電解液を使用するものである。非水電解液の
多くは可燃性であり、有害蒸気を発生させたり、水分の
混入によって特性の劣化を引き起こしたりするために、
気密な密閉性の容器に発電要素が収納されている。しか
しながら、高温での長時間放置や過充電、過放電等によ
って電池内部にガスが発生することがあり、異常な高圧
時に作動する内圧の放出機構を備えている。この内圧の
放出機構は、異常な高圧により電池容器が変形したり破
裂するのを防ぐためのもので、安全弁や破裂弁と呼ばれ
るものである。異常な高圧時に作動し、ガスを電池外へ
放出する。[0006] A non-aqueous electrolyte battery uses an electrolyte other than an aqueous solution, as the name implies. Many non-aqueous electrolytes are flammable and generate harmful vapors or cause deterioration of characteristics due to the incorporation of moisture.
The power generation element is housed in a hermetically sealed container. However, a gas may be generated inside the battery due to being left at a high temperature for a long time, overcharging, overdischarging, etc., and an internal pressure release mechanism that operates at an abnormally high pressure is provided. This internal pressure releasing mechanism is for preventing the battery container from being deformed or ruptured due to abnormally high pressure, and is called a safety valve or a rupture valve. Operates at abnormally high pressure and releases gas out of the battery.
【０００７】[0007]
【発明が解決しようとする課題】安全弁と呼ばれるもの
に、一般に水溶液電解液系の電池に使用されている復帰
式のガス放出弁がある。電池内部のガス圧が上昇すると
作動して、ガスを電池容器外へ放出する。ガスの放出に
より内圧が低下すると、ガスの放出孔を閉鎖し電池内を
再び密閉する。しかし、単位時間当りのガスの放出量は
少なく、電池の短絡や連続過充電等により多量にガスが
発生した場合は対応することができない。さらに、復帰
式のガス放出弁は気密性が不充分であり、水蒸気や酸素
を透過しやすいために、非水電解液を使用した電池には
あまり用いられていない。非水電解液の多くは破裂弁と
呼ばれる非復帰式の内圧の放出機構が用いられている。
破裂弁は金属や樹脂の薄膜を使用したり、電池容器の一
部を加工して機械的強度を低下させ、規定圧力以上でガ
スの放出口を開口させるものである。この破裂弁は一時
に多量のガスを放出することができるが、一旦作動する
と、放出口を再閉鎖することができないために、電池は
開放状態におかれることになる。非水電解液電池が空気
中に開放状態で放置されると、空気中の水蒸気が電池内
に浸入し、負極と反応して水素ガスを発生するようにな
る。水素ガスは着火すると激しい爆発を起こすことがあ
り、極めて危険である。一般に非水電解液電池では復帰
式のガス放出弁を備えるものは少なく、一旦、破裂弁が
作動すると、電池内に水素ガス発生のおそれがあった。A so-called safety valve is a return-type gas release valve generally used for an aqueous electrolyte battery. It operates when the gas pressure inside the battery rises, releasing gas out of the battery container. When the internal pressure decreases due to the release of gas, the gas discharge hole is closed and the inside of the battery is sealed again. However, the amount of gas released per unit time is small, and it is not possible to cope with a case where a large amount of gas is generated due to a short circuit of the battery, continuous overcharge, or the like. Further, the return-type gas discharge valve has insufficient airtightness and easily permeates water vapor and oxygen, and thus is not often used in batteries using a non-aqueous electrolyte. Many non-aqueous electrolytes use a non-return type internal pressure release mechanism called a rupture valve.
The rupture valve uses a thin film of metal or resin, or processes a part of the battery container to reduce the mechanical strength, and opens the gas discharge port at a specified pressure or higher. This rupture valve can release a large amount of gas at a time, but once activated, the outlet will not be able to reclose and the battery will be left open. When the nonaqueous electrolyte battery is left open in the air, water vapor in the air enters the battery and reacts with the negative electrode to generate hydrogen gas. Hydrogen gas can cause a severe explosion when ignited, which is extremely dangerous. Generally, few non-aqueous electrolyte batteries have a return-type gas release valve, and once the rupture valve is operated, there is a risk of generating hydrogen gas in the battery.
【０００８】[0008]
【課題を解決するための手段】本発明は、非水電解液電
池において、非水電解液上部に非水電解液及び水に相溶
性の無い絶縁性の液体を配置し、電池容器上部に電池容
器内圧開放手段を備えたことを特徴とする。SUMMARY OF THE INVENTION The present invention relates to a non-aqueous electrolyte battery, in which an insulating liquid having no compatibility with water and a non-aqueous electrolyte is disposed above the non-aqueous electrolyte, and the battery is disposed above the battery container. It is characterized by comprising a container internal pressure releasing means.
【０００９】[0009]
【発明の実施の形態】絶縁性液体は、常時、電解液の上
面に層状に浮遊しており、破裂弁のような非復帰式の内
圧放出機構が作動しても、水蒸気が負極と反応するのを
防ぐために、水素発生のおそれがなく、電池の安全性が
向上した。一般に電池に異常が発生して、非復帰式の内
圧放出機構が作動しても、直ちに対応が取れることは少
なく、たとえば夜間等に異常が発生しても、翌朝まで電
池が解放状態で放置されることがあり、電池の吸湿を防
ぐ対策が望まれていた。本発明は、特に無人で運転され
る蓄電設備用の大型電池に最適である。大型電池では、
より安全性を高めるために、復帰式の安全弁と非復帰式
の破裂弁の２種が同時に用いられることもある。DESCRIPTION OF THE PREFERRED EMBODIMENTS An insulating liquid is always suspended in a layer on the upper surface of an electrolytic solution, and water vapor reacts with a negative electrode even when a non-return-type internal pressure release mechanism such as a burst valve operates. In order to prevent the occurrence of hydrogen, there was no fear of hydrogen generation, and the safety of the battery was improved. In general, even if an abnormality occurs in the battery and the non-return-type internal pressure release mechanism is activated, it is rare to take immediate action. Therefore, measures to prevent the battery from absorbing moisture have been desired. INDUSTRIAL APPLICABILITY The present invention is particularly suitable for large-sized batteries for power storage equipment that is operated unattended. For large batteries,
To further enhance safety, two types of return type safety valve and non-return type rupture valve may be used at the same time.
【００１０】[0010]
【実施例】図１は本発明の一実施例を示す容量300Ah の
非水電解液二次電池の要部断面図である。１は発電要素
であり、詳細は省略するが、正極と負極とセパレータか
ら構成されている。正極はLiCoO 2 を、負極はグラファ
イトを主成分とする電極材より作成されている。２は発
電要素１を収納する電糟である。３は非水電解液で、Li
PF6 を溶解したエチレンカーボネートとジエチルカーボ
ネートの等量混合物を使用した。４は正極端子、５は負
極端子である。６は電池容器に設けた破裂弁で、電池内
部が異常な高圧になったときに作動する内圧放出機構で
ある。破裂弁６は厚さ０．２mmのステンレス板であり、
過充電や大電流放電等によるガス発生や温度上昇による
内圧の異常な増大時に、規定圧力以上で破れるようにな
っている。７は非水電解液３と水に対して相溶性がな
く、非水電解液より比重の小さい絶縁液体で、流動パラ
フィンを使用した。実施例で使用した流動パラフィン７
の比重は0.83であり、電解液の比重は1.25であるため
に、非水電解液３の上部に層状に浮遊している。流動パ
ラフィンは蒸気圧が低く、水をほとんど溶解しない性質
を有している。FIG. 1 is a sectional view of a main part of a non-aqueous electrolyte secondary battery having a capacity of 300 Ah, showing an embodiment of the present invention. Reference numeral 1 denotes a power generation element, which is composed of a positive electrode, a negative electrode, and a separator, although details are omitted. The positive electrode is made of LiCoO 2 and the negative electrode is made of an electrode material mainly containing graphite. Reference numeral 2 denotes an electric cabinet that houses the power generating element 1. 3 is a non-aqueous electrolyte, Li
An equal mixture of ethylene carbonate and diethyl carbonate in which PF 6 was dissolved was used. 4 is a positive terminal and 5 is a negative terminal. Reference numeral 6 denotes a rupture valve provided in the battery container, which is an internal pressure release mechanism that operates when the inside of the battery becomes abnormally high in pressure. The rupture valve 6 is a 0.2 mm thick stainless steel plate,
When the internal pressure is abnormally increased due to gas generation or temperature rise due to overcharge or large current discharge or the like, the internal pressure is broken at a specified pressure or higher. Numeral 7 is an insulating liquid which is not compatible with the nonaqueous electrolyte 3 and water and has a lower specific gravity than the nonaqueous electrolyte, and used liquid paraffin. Liquid paraffin 7 used in the examples
Is 0.83, and the specific gravity of the electrolytic solution is 1.25, so that the non-aqueous electrolytic solution 3 is suspended in a layered manner. Liquid paraffin has a low vapor pressure and hardly dissolves water.
【００１１】従来、破裂弁６が破れると、電池内部のガ
スや電解液の蒸気が外部に放出されるが、同時に外部の
外気も電池内に侵入するようになる。破裂弁が作動した
電池はすでに正常な電池ではなく、直ちに回収し安全化
の対策を取らねばならないが、夜間や休日等のために、
電池内が外気に解放された状態で引き続き放置されるこ
とがある。このような状態で非水電解液電池を放置する
と、電解液に外気中の水蒸気が溶け込み、負極と反応し
て発熱し、水素ガスを発生するようになる。電池の温度
は徐々に上昇し、電池内は水素ガスで充満し、極めて危
険な状態となる。Conventionally, when the rupture valve 6 is ruptured, the gas inside the battery and the vapor of the electrolytic solution are released to the outside, but at the same time, the outside air also enters the battery. The battery with which the rupture valve has been activated is not already a normal battery and must be immediately collected and safety measures taken.
There is a case where the battery is continuously left in a state of being opened to the outside air. If the non-aqueous electrolyte battery is left in such a state, water vapor in the outside air dissolves in the electrolyte, reacts with the negative electrode, generates heat, and generates hydrogen gas. The temperature of the battery gradually rises, and the inside of the battery is filled with hydrogen gas, which is extremely dangerous.
【００１２】本発明実施例電池では、温度２０℃、相対
湿度７５％の室内で破裂弁を作動させ、３日間放置した
が、電池温度の上昇も水素ガスの発生も認められなかっ
た。また、絶縁液体として使用した流動パラフィンは蒸
気圧が低いために、非水電解液の蒸発を防ぐ働きもあ
り、放置中の非水電解液の臭気はほとんどなかった。In the battery of the present invention, the rupture valve was operated in a room at a temperature of 20 ° C. and a relative humidity of 75% and left for 3 days, but no increase in battery temperature and no generation of hydrogen gas were observed. Since the liquid paraffin used as the insulating liquid has a low vapor pressure, the liquid paraffin also has a function of preventing evaporation of the non-aqueous electrolyte, and the non-aqueous electrolyte during the standing had almost no odor.
【００１３】絶縁液体を使用しない従来の電池について
も同様の放置試験を行った。破裂弁を作動させ、本発明
実施電池と同じ条件の下で放置したところ、直ちに水素
ガスの発生が観察され、５時間後に電池の温度が局所的
であるが、最高７℃上昇した。非水電解液の臭気が室内
に立ちこめたため、放置試験は４時間で中止した。[0013] A similar standing test was performed on a conventional battery not using an insulating liquid. When the rupture valve was operated and left under the same conditions as the battery of the present invention, generation of hydrogen gas was immediately observed. After 5 hours, the temperature of the battery was local, but rose by a maximum of 7 ° C. The standing test was stopped in 4 hours because the odor of the non-aqueous electrolyte had entered the room.
【００１４】絶縁性液体は、使用する非水電解液と水に
対して相溶性が少なく、非水電解液より比重の軽いもの
が必要である。このようなものとして、実施例で使用し
た流動パラフィンのほかに、オレフィン系のオイル、シ
リコン系のオイル、フッ素系のオイル（いずれも低分子
量の流動性樹脂を含み、オレフィンオイル、シリコンオ
イル、フッ素オイルと呼ぶ）、が使用可能である。The insulating liquid must have a low compatibility with the non-aqueous electrolyte used and water and a specific gravity lower than that of the non-aqueous electrolyte. Such materials include, in addition to the liquid paraffin used in the examples, olefin-based oils, silicone-based oils, and fluorine-based oils (including low-molecular-weight fluid resins, olefin oils, silicone oils, fluorine-containing oils, etc.). Oil)) can be used.
【００１５】[0015]
【発明の効果】本発明は、吸湿性の強い非水電解液の表
面を、吸湿性の少ない絶縁性液体で覆うことにより、内
圧の放出機構の作動した非水電解液電池の安全性を向上
させるものであり、工業的価値の大きなものである。ま
た、非水電解液の蒸発を防ぐという効果もあり、非常用
電源や夜間電力を貯蔵するロードレベリング用の電源設
備のような定置型の電池に特に有効である。また、潜水
艦や船舶、列車のような揺れや振動の少ない移動用の電
池にも適用可能であり、一次電池、二次電池の制限はな
い。According to the present invention, the safety of a non-aqueous electrolyte battery in which an internal pressure release mechanism is activated is improved by covering the surface of a non-aqueous electrolyte having high hygroscopicity with an insulating liquid having low hygroscopicity. It is of great industrial value. It also has the effect of preventing the nonaqueous electrolyte from evaporating, and is particularly effective for stationary batteries such as emergency power supplies and power equipment for load leveling that stores nighttime power. In addition, the present invention can be applied to a battery for movement such as a submarine, a ship, and a train that has less shaking and vibration, and there is no limitation on the primary battery and the secondary battery.
【図１】本発明の一実施例である非水電解液二次電池の
断面図である。FIG. 1 is a sectional view of a non-aqueous electrolyte secondary battery according to one embodiment of the present invention.
１・・・・発電要素 ２・・・・電糟 ３・・・・非水電解液 ４・・・・正極端子 ５・・・・負極端子 ６・・・・破裂弁 ７・・・・絶縁液体 1 ··· Power generation element 2 ··· Battery 3 ··· Non-aqueous electrolyte 4 ··· Positive terminal 5 ··· Negative terminal 6 ··· Burst valve 7 ··· Insulation liquid
Claims (9)
部に配置された絶縁性液体であって前記非水電解液及び
水に対して相溶性が無いものと、前記発電要素、非水電
解液及び絶縁性液体を収納するための電池容器と、前記
電池容器上部に配された電池容器内圧開放手段とを備え
たことを特徴とする非水電解液電池。1. An electric power generating element, a non-aqueous electrolyte, an insulating liquid disposed above the non-aqueous electrolyte, wherein the insulating liquid is incompatible with the non-aqueous electrolyte and water, and A battery container for storing a non-aqueous electrolyte solution and an insulating liquid; and a battery container internal pressure release means disposed above the battery container.
る、請求項１記載の非水電解液電池。2. The non-aqueous electrolyte battery according to claim 1, wherein the battery container internal pressure releasing means is a return check valve.
ある、請求項１記載の非水電解液電池。3. The non-aqueous electrolyte battery according to claim 1, wherein the battery container internal pressure releasing means is a non-returnable rupture valve.
エチレンカーボネイト、１，２−ジメトキシエタン、γ
−ブチロラクトン、スルホン、スルホラン、ジオキソラ
ン、２−メチルテトラヒドロフラン、ジメチルカーボネ
ート、ジエチルカーボネイト、もしくはメチルエチルカ
ーボネート、又はこれらの混合物である、請求項１、２
又は３記載の非水電解液電池。4. A non-aqueous electrolyte comprising propylene carbonate,
Ethylene carbonate, 1,2-dimethoxyethane, γ
-Butyrolactone, sulfone, sulfolane, dioxolane, 2-methyltetrahydrofuran, dimethyl carbonate, diethyl carbonate or methyl ethyl carbonate, or a mixture thereof.
Or the non-aqueous electrolyte battery according to 3.
求項１、２、３又は４記載の非水電解液電池。5. The non-aqueous electrolyte battery according to claim 1, wherein the insulating liquid is liquid paraffin.
ンオイル、もしくはフッ素オイルである、請求項１、
２、３、４又は５記載の非水電解液電池。6. The method according to claim 1, wherein the insulating liquid is an olefin-based oil, a silicone oil, or a fluorine oil.
The non-aqueous electrolyte battery according to 2, 3, 4 or 5.
水電解液電池を用いた非常用電源装置。7. An emergency power supply using the non-aqueous electrolyte battery according to claim 1, 2, 3, 4, 5, or 6.
水電解液電池を用いた夜間電力貯蔵装置。8. A nighttime power storage device using the nonaqueous electrolyte battery according to claim 1, 2, 3, 4, 5, or 6.
解液電池を用いた移動体。9. A moving body using the non-aqueous electrolyte battery according to claim 1, 2, 3, 4, or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10055872A JPH11238518A (en) | 1998-02-20 | 1998-02-20 | Nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10055872A JPH11238518A (en) | 1998-02-20 | 1998-02-20 | Nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11238518A true JPH11238518A (en) | 1999-08-31 |
Family
ID=13011192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10055872A Pending JPH11238518A (en) | 1998-02-20 | 1998-02-20 | Nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11238518A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2010283116A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same |
-
1998
- 1998-02-20 JP JP10055872A patent/JPH11238518A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2010283116A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same |
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