JPH07192712A - Nonaqueous electrolyte secondary battery - Google Patents
Nonaqueous electrolyte secondary batteryInfo
- Publication number
- JPH07192712A JPH07192712A JP5328343A JP32834393A JPH07192712A JP H07192712 A JPH07192712 A JP H07192712A JP 5328343 A JP5328343 A JP 5328343A JP 32834393 A JP32834393 A JP 32834393A JP H07192712 A JPH07192712 A JP H07192712A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- safety valve
- electrolyte secondary
- secondary battery
- opening
- 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- Withdrawn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
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、非水電解液二次電池に
関し、特に安全弁を備える非水電解液二次電池に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous electrolyte secondary battery, and more particularly to a non-aqueous electrolyte secondary battery having a safety valve.
【０００２】[0002]
【従来の技術】近年、電子技術の進歩により、電子機器
の高性能化、小型化、ポータブル化が進み、これらの電
子機器に使用される高エネルギー密度の二次電池の要求
が強まっている。従来、これらの電子機器に使用される
二次電池としては、ニッケル・カドミウム電池や鉛電池
などが挙げられるが、これらの電池では、放電電位が低
く、エネルギー密度の高い電池を得るという点ではまだ
不十分である。2. Description of the Related Art In recent years, advances in electronic technology have led to advances in performance, miniaturization, and portability of electronic equipment, and the demand for high energy density secondary batteries used in these electronic equipment is increasing. Conventionally, secondary batteries used in these electronic devices include nickel-cadmium batteries and lead batteries, but these batteries still have low discharge potential and high energy density. Is insufficient.
【０００３】最近、リチウムやリチウム合金もしくは炭
素材料のようなリチウムイオンをドープ及び脱ドープす
ることが可能な物質を負極として用い、また正極にリチ
ウムコバルト複合酸化物などのリチウム複合酸化物を使
用する非水電解液二次電池の研究・開発が行われてい
る。この電池は、電池電圧が高く、高エネルギー密度を
有し、自己放電も少なく、かつサイクル特性に優れてい
る。Recently, a material capable of doping and dedoping lithium ions such as lithium, a lithium alloy or a carbon material is used as a negative electrode, and a lithium composite oxide such as a lithium cobalt composite oxide is used as a positive electrode. Non-aqueous electrolyte secondary batteries are being researched and developed. This battery has a high battery voltage, a high energy density, little self-discharge, and excellent cycle characteristics.
【０００４】しかし、前記非水電解液二次電池のよう
に、有機溶媒を電解液として使用した電池では、内部の
温度が上昇すると、内圧が上昇しやすく、破裂等が発生
することがある。そこで、この種の電池では、破裂等を
防ぐために、所定の内圧にて開裂し、内圧を解放する安
全弁を設けることが行われている。However, in a battery using an organic solvent as an electrolytic solution, such as the non-aqueous electrolytic solution secondary battery, if the internal temperature rises, the internal pressure is likely to rise, which may cause rupture or the like. Therefore, in this type of battery, in order to prevent rupture or the like, a safety valve that opens at a predetermined internal pressure and releases the internal pressure is provided.
【０００５】[0005]
【発明が解決しようとする課題】しかし、単に安全弁を
設けただけでは、内圧を解放するために安全弁が作動し
た時に、ガスだけでなく、固形物までもが、例えば火花
として噴出することがあり、周囲への影響が大きく、周
辺機器に対しても損傷を与えてしまう恐れがある。However, if only the safety valve is provided, when the safety valve is operated to release the internal pressure, not only the gas but also the solid matter may be ejected as a spark, for example. , It has a great influence on the surroundings and may damage peripheral devices.
【０００６】そこで、本発明はこのような従来の実情に
鑑み、内圧の上昇を安全に開放でき、しかも火花等の固
形物の噴出を抑制することが可能な非水電解液二次電池
を提供することを目的とする。Therefore, in view of the conventional situation as described above, the present invention provides a non-aqueous electrolyte secondary battery capable of safely releasing the rise in internal pressure and suppressing the ejection of solid matter such as sparks. The purpose is to do.
【０００７】[0007]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明は、電池蓋の内側に安全弁を備える非水電
解液二次電池において、安全弁と電池蓋の間に網目状の
開口を有する膜を備えることを特徴とするものであり、
電池内部よりガス噴出があった場合、固形物の噴出を防
止する機構を有することを特徴とするものである。In order to achieve the above object, the present invention provides a non-aqueous electrolyte secondary battery having a safety valve inside a battery lid, and a mesh-shaped opening between the safety valve and the battery lid. Characterized by comprising a film having
It is characterized in that it has a mechanism for preventing the ejection of solid matter when gas is ejected from the inside of the battery.
【０００８】本発明の非水電解液二次電池において、固
形物の噴出防止機構として設けられる網目状の開口を有
する膜（以下、網状膜と称する。）の材質としては、不
燃性のものであれば任意であり、例えば金属、樹脂、不
織布、グラスウール等が挙げられる。特に、製造コスト
や性能等の観点からは、金網や、切り込みを入れた金属
板を延伸して斜めに交差する格子状にしたエキスパンド
メタル、金属板に微細な孔を打ち抜き加工したパンチン
グメタル等が好適である。In the non-aqueous electrolyte secondary battery of the present invention, the material of the membrane having mesh openings (hereinafter referred to as mesh membrane) provided as a mechanism for preventing the ejection of solid matter is nonflammable. It is optional, and examples thereof include metal, resin, non-woven fabric, and glass wool. In particular, from the viewpoint of manufacturing cost and performance, wire mesh, expanded metal in the form of a grid in which a notched metal plate is stretched to cross diagonally, punched metal in which fine holes are punched in the metal plate, etc. It is suitable.
【０００９】また、上記網状膜の開口（目）の大きさ
は、適宜選択すれば良いが、固形物の噴出を防止するた
めには、３２メッシュ以下（目開き０．２５mm2 以下）
とすることが好ましく、ガスの透過性、固形物の非透過
性を考慮して確実に効果を得るためには、１５０メッシ
ュ以下（目開き０．０１１mm2 以下）とすることが望ま
しい。The size of the openings (eyes) of the reticulated membrane may be appropriately selected, but in order to prevent ejection of solid matter, 32 mesh or less (mesh opening 0.25 mm 2 or less).
It is preferable that the mesh be 150 mesh or less (opening 0.011 mm 2 or less) in order to surely obtain the effect in consideration of gas permeability and non-permeability of solid matter.
【００１０】上記網状膜は、安全弁と電池蓋の間であれ
ば任意の位置に配設することができる。例えば、円板状
として安全弁と電池蓋の間に挟み込んでも良いし、電池
蓋のガス抜き孔を塞ぐ形で電池蓋内面に張り付けても良
い。The reticulated membrane can be arranged at any position between the safety valve and the battery lid. For example, it may be sandwiched between a safety valve and a battery lid in the shape of a disc, or may be attached to the inner surface of the battery lid so as to close the gas vent hole of the battery lid.
【００１１】[0011]
【作用】安全弁を備える非水電解液二次電池において、
異常により内圧が上昇したときには、安全弁が作動（開
裂）し、この内圧上昇が開放される。このとき、ガスと
共に固形物が例えば火花として噴出するが、本発明の電
池では、網状膜が一種のフィルター的役割を果たし、前
記固形物（火花）が捕捉される。[Function] In a non-aqueous electrolyte secondary battery equipped with a safety valve,
When the internal pressure rises due to an abnormality, the safety valve operates (opens), and this internal pressure rise is released. At this time, solid matter is ejected together with gas as, for example, a spark, but in the battery of the present invention, the reticulated membrane plays a role of a kind of filter, and the solid matter (spark) is captured.
【００１２】[0012]
【実施例】以下に、本発明を適用した具体的な実施例に
ついて、図面や実験結果を参照しながら説明する。EXAMPLES Specific examples to which the present invention is applied will be described below with reference to the drawings and experimental results.
【００１３】実施例１ まず、負極を次のように作製した。ピッチコークスを粉
砕し、平均粒径３０μｍの炭素材料粉末とした。このよ
うにして得た炭素材料粉末を９０重量部、結着材として
ポリフッ化ビニリデン（ＰＶＤＦ）１０重量部と結合
し、この負極混合物を溶剤Ｎ−メチル２ピロリドンに分
散させてスラリー状にした。負極集電体として厚さ１０
μｍの帯状の銅箔の両面に上記負極スラリーを均一に塗
布し、乾燥させた後ロールプレス機で圧縮成型し、帯状
負極１を作成した。 Example 1 First, a negative electrode was prepared as follows. Pitch coke was crushed to obtain a carbon material powder having an average particle size of 30 μm. 90 parts by weight of the carbon material powder thus obtained was combined with 10 parts by weight of polyvinylidene fluoride (PVDF) as a binder, and this negative electrode mixture was dispersed in a solvent N-methyl-2pyrrolidone to form a slurry. Negative electrode current collector thickness 10
The above negative electrode slurry was uniformly applied to both surfaces of a strip-shaped copper foil having a thickness of μm, dried and then compression-molded with a roll press machine to prepare a strip-shaped negative electrode 1.
【００１４】次に正極を次のように作製した。正極活物
質には、炭酸リチウムと炭酸コバルトをＬｉ／Ｃｏ（モ
ル比）＝１になるように混合し、空気中で９００℃、５
時間焼成で得られたＬｉＣｏＯ2 を用い、ＬｉＣｏＯ2
９９．５重量部、炭酸リチウム０．５重量部とした混合
品を９１重量部、導電剤としてグラファイトを６重量
部、結着剤としてポリフッ化ビニリデン（ＰＶＤＦ）を
３重量部を混合し、この正極混合物を溶剤Ｎ−メチル２
ピロリドンに分散させてスラリー状にした。そして、正
極集電体として厚さ２０μｍの帯状アルミニウム箔の両
面に上記正極スラリーを均一に塗布し、乾燥させた後、
ロールプレス機で圧縮成型し、帯状正極２を作製した。Next, a positive electrode was prepared as follows. Lithium carbonate and cobalt carbonate were mixed in the positive electrode active material so that Li / Co (molar ratio) = 1, and the mixture was heated in air at 900 ° C. for 5
Using LiCoO 2 obtained in time firing, LiCoO 2
91 parts by weight of a mixture of 99.5 parts by weight and 0.5 part by weight of lithium carbonate, 6 parts by weight of graphite as a conductive agent, and 3 parts by weight of polyvinylidene fluoride (PVDF) as a binder were mixed. The positive electrode mixture was mixed with the solvent N-methyl 2
It was dispersed in pyrrolidone to form a slurry. Then, the positive electrode slurry is uniformly applied to both surfaces of a strip-shaped aluminum foil having a thickness of 20 μm as a positive electrode current collector and dried,
The strip positive electrode 2 was produced by compression molding with a roll press.
【００１５】セパレーターとしては、微多孔性ポリプロ
ピレンフィルムを用意した。帯状負極１と帯状正極２及
びセパレーター３は、それぞれ渦巻電極素子とした場
合、それが外径２０mm、高さ５１mmの電池缶５中に適切
に収まる寸法となるように予め長さ、幅を調節し、第１
図に示した様な渦巻式電極を作製した。A microporous polypropylene film was prepared as the separator. When the strip-shaped negative electrode 1, the strip-shaped positive electrode 2, and the separator 3 are spirally wound electrode elements, the length and width thereof are adjusted in advance so that they can be appropriately accommodated in the battery can 5 having an outer diameter of 20 mm and a height of 51 mm. And first
A spiral electrode as shown in the figure was produced.
【００１６】このようにして作製した渦巻式電極を電池
缶５に収納し、ニッケル製負極リードを負極集電体から
導出して電池缶５に溶接した。同じようにアルミニウム
製正極リード４を正極集電体から導出しアルミニウム製
安全弁７へ溶接した。次に、この電池缶５の中にプロピ
レンカーボネート５０体積部とジエチルカーボネート５
０体積部混合溶媒中にＬｉＰＦ6 １ｍｏｌ／ｌ溶解させ
た電解液を注入した。The spiral electrode thus produced was housed in the battery can 5, and the nickel negative electrode lead was led out from the negative electrode current collector and welded to the battery can 5. Similarly, the aluminum positive electrode lead 4 was led out from the positive electrode current collector and welded to the aluminum safety valve 7. Next, 50 parts by volume of propylene carbonate and 5 parts of diethyl carbonate were placed in the battery can 5.
An electrolyte solution in which 1 mol / l of LiPF 6 was dissolved in 0 volume part mixed solvent was injected.
【００１７】そして、電池蓋６と同一径に加工したステ
ンレス（ｓｕｓ３０４）の１６メッシュの金網８（テイ
ラー社製標準網に対応したＪＩＳ規格の網。以下同
様。）を、電池蓋６とアルミ製安全弁７の間に配設し
た。A stainless steel (sus304) 16-mesh wire net 8 (JIS standard net corresponding to the standard net made by Taylor Co .; hereinafter the same) processed to the same diameter as the battery lid 6 is made of aluminum. It was arranged between the safety valves 7.
【００１８】最後に、アスファルトを塗布した絶縁封口
ガスケットを介して電池缶５をかしめることで、電池蓋
６を固定し、直径２０mm、高さ５０mmの円筒型非水電解
液電池を作製した。Finally, the battery can 5 was caulked via an insulating sealing gasket coated with asphalt to fix the battery lid 6, and a cylindrical nonaqueous electrolyte battery having a diameter of 20 mm and a height of 50 mm was produced.
【００１９】なお、安全弁７は、アルミニウムに切り込
みが入ったもので、電池内圧が一定以上になると、切り
込み部が開裂することにより、内圧を開放するととも
に、正極リード４と電池蓋６との間の接続が切れ、電流
を遮断するようになっている。The safety valve 7 is a notch made of aluminum. When the internal pressure of the battery exceeds a certain level, the notch portion is split to release the internal pressure, and at the same time, the internal pressure between the positive electrode lead 4 and the battery lid 6 is released. Is cut off and the current is cut off.
【００２０】実施例２ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の３２メッシュの金網を用いた。
その他は実施例１と全く同一である。 Example 2 A battery was manufactured in the same manner as in Example 1. However, as the wire mesh 8 disposed between the battery lid 6 and the aluminum safety valve 7, a stainless (sus304) 32 mesh wire mesh was used.
Others are exactly the same as in the first embodiment.
【００２１】実施例３ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の６０メッシュの金網を用いた。
その他は実施例１と全く同一である。 Example 3 A battery was manufactured in the same manner as in Example 1. However, the wire mesh 8 disposed between the battery lid 6 and the aluminum safety valve 7 was made of stainless (sus304) 60 mesh wire mesh.
Others are exactly the same as in the first embodiment.
【００２２】実施例４ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の１５０ッシュの金網を用いた。
その他は実施例１と全く同一である。 Example 4 A battery was manufactured in the same manner as in Example 1. However, as the wire mesh 8 disposed between the battery lid 6 and the aluminum safety valve 7, a stainless steel (sus304) 150-sh wire mesh was used.
Others are exactly the same as in the first embodiment.
【００２３】実施例５ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の２５０メッシュの金網を用い
た。その他は実施例１と全く同一である。 Example 5 A battery was manufactured in the same manner as in Example 1. However, as the wire mesh 8 disposed between the battery lid 6 and the aluminum safety valve 7, a stainless (sus304) 250 mesh wire mesh was used. Others are exactly the same as in the first embodiment.
【００２４】実施例６ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の３２５メッシュの金網を用い
た。その他は実施例１と全く同一である。 Example 6 A battery was manufactured in the same manner as in Example 1. However, as the wire mesh 8 arranged between the battery lid 6 and the aluminum safety valve 7, a stainless steel (sus304) 325 mesh wire mesh was used. Others are exactly the same as in the first embodiment.
【００２５】実施例７ 実施例１と同様にして電池を作製した。ただし、電池蓋
６とアルミ製安全弁７の間に配設する金網８に、ステン
レス（ｓｕｓ３０４）の４００メッシュの金網を用い
た。その他は実施例１と全く同一である。 Example 7 A battery was prepared in the same manner as in Example 1. However, as the wire mesh 8 disposed between the battery lid 6 and the aluminum safety valve 7, a stainless (sus304) 400 mesh wire mesh was used. Others are exactly the same as in the first embodiment.
【００２６】比較例１ 実施例１と同様にして電池を作製した。ただし、アルミ
製安全弁７の上に直接電池蓋６を配設し、金網を使用し
なかった。その他は実施例１と全く同一である。 Comparative Example 1 A battery was manufactured in the same manner as in Example 1. However, the battery lid 6 was placed directly on the aluminum safety valve 7, and no wire mesh was used. Others are exactly the same as in the first embodiment.
【００２７】上記の実施例、比較例のようにして作製さ
れた電池に、通常使用最高電圧である４．２Ｖまで、４
００ｍＡにて充電を行い、その後、２．７５Ｖまで、４
００ｍＡにて放電し、容量を確認した。In the batteries produced as in the above-mentioned Examples and Comparative Examples, up to 4.2 V which is the maximum voltage for normal use, 4
Charge at 00mA, then to 2.75V, 4
It was discharged at 00 mA and the capacity was confirmed.
【００２８】次にこれらの電池の安全性を確認するため
に、加熱テストを行った。これらの電池を、空気中に
て、ホットプレートの上で１０℃／分にて昇温し、２５
０℃まで加熱を行った。その結果、実施例、比較例とも
に、２００℃まではガスの噴出はなく、全て２５０℃に
てガスを噴出した。結果を表１に示す。Next, a heating test was conducted to confirm the safety of these batteries. The temperature of these batteries was raised in air at 10 ° C./min on a hot plate at 25 ° C.
Heated to 0 ° C. As a result, in both Examples and Comparative Examples, no gas was ejected up to 200 ° C., and all were ejected at 250 ° C. The results are shown in Table 1.
【００２９】[0029]
【表１】 [Table 1]
【００３０】実施例１は比較例に対して、火花の噴出が
減少している。そして、実施例２〜６では、火花の噴出
はなくなっている。これは、実施例のように金網８があ
る場合、安全弁７が作動（開裂）し内圧を解放する時
に、金網８が一種のフィルター的役割を果たし、火花の
噴出を防止しているためである。In Example 1, the ejection of sparks was reduced as compared with the comparative example. And in Examples 2-6, the spout of the spark has disappeared. This is because when the wire net 8 is provided as in the embodiment, the wire net 8 acts as a kind of filter when the safety valve 7 is activated (opens) and releases the internal pressure, and prevents sparks from being blown out. .
【００３１】また、上記の実施例では、電池蓋６とアル
ミ製安全弁７の間に、ステンレスの金網８を電池蓋６と
同一径に加工し配置したが、図２のように、電池蓋６の
ガス開放用開口９を塞ぐ形で、電池蓋内面に金網１０を
貼り付けても同様な効果が得られる。Further, in the above embodiment, the stainless wire mesh 8 was machined and arranged between the battery lid 6 and the aluminum safety valve 7 to have the same diameter as the battery lid 6, but as shown in FIG. The same effect can be obtained by sticking the metal net 10 on the inner surface of the battery lid so as to close the gas releasing opening 9.
【００３２】[0032]
【発明の効果】以上に示した様に、電池蓋の内側に安全
弁を備える非水電解液二次電池において、安全弁と電池
蓋の間に網目状の開口を有する膜を備えることにより、
電池内部よりガス噴出があった場合、固形物の噴出を防
止することができ、安全性の高い電池を提供することが
できる。As described above, in the non-aqueous electrolyte secondary battery having the safety valve inside the battery lid, by providing the membrane having the mesh opening between the safety valve and the battery lid,
When gas is ejected from the inside of the battery, it is possible to prevent the ejection of solid matter, and it is possible to provide a highly safe battery.
【図１】本発明を適用した非水電解液二次電池の、一構
成例を示す要部概略断面図である。FIG. 1 is a schematic cross-sectional view of a main part showing a configuration example of a non-aqueous electrolyte secondary battery to which the present invention has been applied.
【図２】本発明を適用した非水電解液二次電池の、他の
構成例を示す要部概略断面図である。FIG. 2 is a schematic cross-sectional view of a main part showing another configuration example of a non-aqueous electrolyte secondary battery to which the present invention has been applied.
１・・・・・・・・・・負極 ２・・・・・・・・・・正極 ３・・・・・・・・・・セパレーター ４・・・・・・・・・・正極リード ５・・・・・・・・・・電池缶 ６・・・・・・・・・・電池蓋 ７・・・・・・・・・・安全弁 ８・・・・・・・・・・網状膜 ９・・・・・・・・・・ガス開放用開口 １０・・・・・・・・・網状膜 1 ・ ・ ・ ・ ・ ・ ・ ・ Negative electrode 2 ・ ・ ・ ・ ・ ・ ・ ・ Positive electrode 3 ・ ・ ・ ・ ・ ・ ・ ・ Separator 4 ・ ・ ・ ・ ・ ・ ・ ・ Positive electrode lead 5 Battery can 6 Battery cover 7 Safety valve 8 Membrane membrane 9: Gas opening 10: Reticulated membrane
Claims (2)
二次電池において、安全弁と電池蓋の間に網目状の開口
を有する膜を備えることを特徴とする非水電解液二次電
池。1. A non-aqueous electrolyte secondary battery having a safety valve inside a battery lid, comprising a membrane having a mesh-like opening between the safety valve and the battery lid. .
ことを特徴とする請求項１記載の非水電解液二次電池。2. The non-aqueous electrolyte secondary battery according to claim 1, wherein the size of the opening is 0.25 mm 2 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5328343A JPH07192712A (en) | 1993-12-24 | 1993-12-24 | Nonaqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5328343A JPH07192712A (en) | 1993-12-24 | 1993-12-24 | Nonaqueous electrolyte secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07192712A true JPH07192712A (en) | 1995-07-28 |
Family
ID=18209182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5328343A Withdrawn JPH07192712A (en) | 1993-12-24 | 1993-12-24 | Nonaqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07192712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012169152A (en) * | 2011-02-15 | 2012-09-06 | Hitachi Vehicle Energy Ltd | Nonaqueous electrolyte secondary battery |
| EP2849257A1 (en) * | 2013-09-15 | 2015-03-18 | NingDe Amperex Technology Limited | Lithium ion battery having desirable safety performance |
-
1993
- 1993-12-24 JP JP5328343A patent/JPH07192712A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012169152A (en) * | 2011-02-15 | 2012-09-06 | Hitachi Vehicle Energy Ltd | Nonaqueous electrolyte secondary battery |
| EP2849257A1 (en) * | 2013-09-15 | 2015-03-18 | NingDe Amperex Technology Limited | Lithium ion battery having desirable safety performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3584583B2 (en) | Stacked non-aqueous electrolyte secondary battery | |
| US11018379B2 (en) | Electrode, secondary battery using same, and method for manufacturing electrode | |
| JPH07192775A (en) | Nonaqueous electrolyte secondary battery | |
| JP4236308B2 (en) | Lithium ion battery | |
| US20090061304A1 (en) | Nonaqueous electrolyte secondary battery | |
| JP3732945B2 (en) | Sealed battery | |
| EP0838098A1 (en) | Nonaqueous electrolyte secondary battery | |
| JP2007273183A (en) | Negative electrode and secondary battery | |
| US6667132B2 (en) | Non-aqueous electrolyte secondary batteries | |
| JP4104363B2 (en) | Sealed battery | |
| JP2006147180A (en) | Non-aqueous electrolyte secondary battery | |
| CA2129558C (en) | Battery with improved safety during mechanical abuse | |
| JPH09190814A (en) | Nonaqueous electrolyte secondary battery | |
| JPH04249073A (en) | Non-aqueous electrolyte secondary battery | |
| JP2004241251A (en) | Insulator for battery and nonaqueous electrolyte battery | |
| JP7434309B2 (en) | Nonaqueous electrolyte secondary battery | |
| JPH07192712A (en) | Nonaqueous electrolyte secondary battery | |
| JP4092543B2 (en) | Non-aqueous secondary battery | |
| KR20180036858A (en) | Electrode Assembly and Secondary Battery Using the Same, and Method for Manufacturing the Electrode | |
| JP2004311339A (en) | Nonaqueous electrolyte secondary battery | |
| JP2005209395A (en) | Nonaqueous electrolytic solution secondary battery | |
| JP2005093077A (en) | Nonaqueous electrolyte secondary battery | |
| JPH07272764A (en) | Nonaqueous electrolytic secondary battery | |
| JP4007026B2 (en) | Winding cylindrical battery | |
| EP4318744A1 (en) | Cylindrical non-aqueous electrolyte secondary battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010306 |