JPH06243870A - Nonaqeous secondary battery - Google Patents
Nonaqeous secondary batteryInfo
- Publication number
- JPH06243870A JPH06243870A JP5047316A JP4731693A JPH06243870A JP H06243870 A JPH06243870 A JP H06243870A JP 5047316 A JP5047316 A JP 5047316A JP 4731693 A JP4731693 A JP 4731693A JP H06243870 A JPH06243870 A JP H06243870A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- battery
- active material
- positive electrode
- secondary 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.)
- 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、非水系二次電池に係わ
り、詳しくは、信頼性（安全性）の向上を目的とした、
リチウムを負極活物質とする非水系二次電池の正極活物
質の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous secondary battery, more specifically, to improve reliability (safety),
The present invention relates to improvement of a positive electrode active material of a non-aqueous secondary battery using lithium as a negative electrode active material.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】近年、
リチウム二次電池等の非水系二次電池が、ニッケル・カ
ドミウム二次電池等の水系二次電池と異なり水の分解電
圧を考慮する必要がないため高電圧設計が可能であるな
どの理由から、脚光を浴びつつある。2. Description of the Related Art In recent years,
Because non-aqueous secondary batteries such as lithium secondary batteries do not need to consider the decomposition voltage of water unlike aqueous secondary batteries such as nickel-cadmium secondary batteries, high voltage design is possible. It is in the spotlight.
【０００３】而して、電池電圧が高い非水系二次電池と
して、リチウムを負極活物質として使用し、且つ、Ｌｉ
ＮｉＯ2 、ＬｉＮｉa Ｃｏ1-a Ｏ2 （０＜ａ＜１）など
を正極活物質に使用した電池が知られている。As a non-aqueous secondary battery having a high battery voltage, lithium is used as a negative electrode active material, and Li
A battery using NiO 2 , LiNi a Co 1 -a O 2 (0 <a <1) or the like as a positive electrode active material is known.
【０００４】しかしながら、この非水系二次電池には、
充電時に比較的低い温度（１８０°Ｃ程度）で正極活物
質と電解液とが反応（発熱反応）し始めるため電池温度
が異常に上昇する危険性があり、信頼性の点で問題があ
った。However, in this non-aqueous secondary battery,
Since the positive electrode active material and the electrolytic solution start to react (exothermic reaction) at a relatively low temperature (about 180 ° C.) during charging, there is a risk that the battery temperature may rise abnormally, which is a problem in terms of reliability. .
【０００５】本発明は、この問題を解決するべくなされ
たものであって、その目的とするところは、正極活物質
と電解液との反応開始温度が高いために発熱しにくい、
信頼性の高い非水系二次電池を提供するにある。The present invention has been made to solve this problem, and its object is to prevent heat generation because the reaction initiation temperature of the positive electrode active material and the electrolytic solution is high.
To provide a highly reliable non-aqueous secondary battery.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る非水系二次電池（以下、「本発明電池」
と称することがある。）は、リチウムを負極活物質とす
る負極と、組成式Ｌｉx Ｎｉ1-y Ｃｏy Ｏw （０＜ｘ＜
１．３、０≦ｙ≦０．５、１．８≦ｗ≦２．２）で表さ
れる複合酸化物を正極活物質とする正極とを備える非水
系二次電池であって、前記複合酸化物に、酸化リチウ
ム、水酸化リチウム、硝酸リチウム、炭酸リチウム、ハ
ロゲン化リチウム、硫化リチウム、酢酸リチウム及び硫
酸リチウムよりなる群から選ばれた少なくとも一種のリ
チウム化合物が添加されてなる。A non-aqueous secondary battery according to the present invention (hereinafter, referred to as "the battery of the present invention") for achieving the above object.
Sometimes called. ) Is a negative electrode using lithium as a negative electrode active material and a composition formula Li x Ni 1-y Co y O w (0 <x <
1.3, 0 ≦ y ≦ 0.5, 1.8 ≦ w ≦ 2.2), which is a non-aqueous secondary battery comprising a positive electrode using a composite oxide as a positive electrode active material. At least one lithium compound selected from the group consisting of lithium oxide, lithium hydroxide, lithium nitrate, lithium carbonate, lithium halides, lithium sulfide, lithium acetate and lithium sulfate is added to the oxide.
【０００７】本発明が改良せんとする電池（対象電池）
は、リチウムを負極活物質とし、特定の複合酸化物を正
極活物質とする非水系二次電池である。Battery to be improved by the present invention (target battery)
Is a non-aqueous secondary battery using lithium as a negative electrode active material and a specific composite oxide as a positive electrode active material.
【０００８】したがって、本発明電池における負極材料
としては、金属リチウム又はリチウムイオンを吸蔵放出
可能な物質が使用される。リチウムイオンを吸蔵放出可
能な物質としては、リチウム合金、コークス、黒鉛が例
示される。Therefore, as the negative electrode material in the battery of the present invention, metallic lithium or a substance capable of inserting and extracting lithium ions is used. Examples of the substance capable of inserting and extracting lithium ions include lithium alloy, coke, and graphite.
【０００９】本発明電池における複合酸化物は、たとえ
ばリチウムの水酸化物、酸化物、炭酸塩又は硝酸塩と、
ニッケルの水酸化物、酸化物、炭酸塩又は硝酸塩と、コ
バルトの水酸化物、酸化物、炭酸塩又は硝酸塩との混合
物を焼成することにより得られる。The composite oxide in the battery of the present invention includes, for example, lithium hydroxide, oxide, carbonate or nitrate,
It is obtained by firing a mixture of nickel hydroxide, oxide, carbonate or nitrate and cobalt hydroxide, oxide, carbonate or nitrate.
【００１０】本発明電池では、この複合酸化物と電解液
との正極が高電位となる充電時の反応開始温度を高める
べく、当該複合酸化物に上記した特定のリチウム化合物
が１種又は２種以上添加される。In the battery of the present invention, one or two kinds of the above-mentioned specific lithium compound are contained in the composite oxide in order to increase the reaction initiation temperature during charging when the positive electrode of the composite oxide and the electrolyte has a high potential. The above is added.
【００１１】複合酸化物に対するリチウム化合物の好適
な添加割合は、複合酸化物１００モル部に対して、リチ
ウム原子換算モル数で３〜３０モル部である。３モル部
未満の場合は反応開始温度を高めるという本発明が企図
する効果が充分に発現されず、また３０モル部を越えた
場合はリチウムの吸蔵放出に関与しないリチウム化合物
の量が多くなり容量低下を招くので、ともに好ましくな
い。The suitable addition ratio of the lithium compound to the composite oxide is 3 to 30 parts by mol in terms of lithium atom based on 100 parts by mol of the composite oxide. When the amount is less than 3 parts by mole, the effect intended by the present invention of increasing the reaction initiation temperature is not sufficiently exhibited, and when it exceeds 30 parts by mole, the amount of the lithium compound that is not involved in lithium occlusion / release is increased and the capacity is increased. Both of them are not preferable because they cause a decrease.
【００１２】本発明は、組成式Ｌｉx Ｎｉ1-y Ｃｏy Ｏ
w で表される複合酸化物を正極活物質とする非水系二次
電池の信頼性を向上させるために、これに硝酸リチウム
等のリチウム化合物を添加して複合酸化物と電解液との
反応開始温度を高めるようにしたものである。それゆ
え、非水系電解液、セパレータなどについては特に制限
されない。The present invention provides a composition formula Li x Ni 1-y Co y O.
In order to improve the reliability of non-aqueous secondary batteries that use the complex oxide represented by w as the positive electrode active material, a lithium compound such as lithium nitrate is added to this to start the reaction between the complex oxide and the electrolytic solution. It is designed to raise the temperature. Therefore, the non-aqueous electrolyte solution, the separator and the like are not particularly limited.
【００１３】[0013]
【作用】本発明電池においては、正極活物質たる組成式
Ｌｉx Ｎｉ1-y Ｃｏy Ｏw で表される複合酸化物に特定
のリチウム化合物を添加して、当該複合酸化物と電解液
との反応開始温度が高くなるようにしてあるので、発熱
しにくい。In the battery of the present invention, a specific lithium compound is added to the composite oxide represented by the composition formula Li x Ni 1-y Co y O w , which is the positive electrode active material, and the composite oxide and the electrolytic solution are added. Since the reaction start temperature of (1) is set to be high, it is difficult to generate heat.
【００１４】[0014]
【実施例】以下、本発明を実施例に基づいてさらに詳細
に説明するが、本発明は下記実施例により何ら限定され
るものではなく、その要旨を変更しない範囲において適
宜変更して実施することが可能なものである。EXAMPLES The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited by the examples described below, and various modifications may be made without departing from the scope of the invention. Is possible.
【００１５】（実施例１）扁平型の非水系二次電池（本
発明電池）を作製した。Example 1 A flat non-aqueous secondary battery (the battery of the present invention) was produced.
【００１６】〔正極の作製〕水酸化リチウムと、水酸化
ニッケルと、酸化コバルトとを、リチウム：ニッケル：
コバルトの原子比１０：９：１で混合した後、８００°
Ｃで２０時間焼成して組成式ＬｉＮｉ0.9 Ｃｏ0.1 Ｏ2
で表される複合酸化物粉末を得た。[Preparation of Positive Electrode] Lithium hydroxide, nickel hydroxide, and cobalt oxide were mixed with lithium: nickel:
After mixing at an atomic ratio of cobalt of 10: 9: 1, 800 °
The composition formula is LiNi 0.9 Co 0.1 O 2 after firing for 20 hours in C
A composite oxide powder represented by
【００１７】次いで、この複合酸化物粉末１００モル部
に対して、硝酸リチウム（ＬｉＮＯ3 ）をリチウム換算
モル数で３モル部添加混合して正極材料を得た。Then, 3 parts by mole of lithium nitrate (LiNO 3 ) was added and mixed with 100 parts by mole of this composite oxide powder to obtain a positive electrode material.
【００１８】続いて、この正極材料と、導電剤としての
アセチレンブラックと、結着剤としてのフッ素樹脂粉末
とを、重量比率９０：６：４で混合して正極合剤を得
た。Subsequently, this positive electrode material, acetylene black as a conductive agent, and fluororesin powder as a binder were mixed in a weight ratio of 90: 6: 4 to obtain a positive electrode mixture.
【００１９】最後に、この正極合剤を成形圧２トン／ｃ
ｍ2 で加圧成形した後、２５０°Ｃで加熱処理して、直
径２０ｍｍの円板状の正極を作製した。なお、正極集電
体としては、ステンレス鋼板（ＳＵＳ３０４）を使用し
た。Finally, the positive electrode mixture is molded at a molding pressure of 2 ton / c.
After pressure molding at m 2 , heat treatment was performed at 250 ° C. to prepare a disk-shaped positive electrode having a diameter of 20 mm. A stainless steel plate (SUS304) was used as the positive electrode current collector.
【００２０】〔負極の作製〕リチウム圧延板を所定の寸
法に打ち抜いて、金属リチウムからなる円板状の負極を
作製した。なお、負極集電体としては、ステンレス鋼板
（ＳＵＳ３０４）を使用した。[Production of Negative Electrode] A rolled lithium plate was punched into a predetermined size to produce a disk-shaped negative electrode made of metallic lithium. A stainless steel plate (SUS304) was used as the negative electrode current collector.
【００２１】〔電解液の調製〕プロピレンカーボネート
（ＰＣ）と１，２−ジメトキシエタン（ＤＭＥ）との等
体積混合溶媒に、ＬｉＣｌＯ4 （過塩素酸リチウム）を
１モル／リットルの割合で溶かして非水系電解液を調製
した。[Preparation of Electrolyte Solution] LiClO 4 (lithium perchlorate) was dissolved in an equal volume mixed solvent of propylene carbonate (PC) and 1,2-dimethoxyethane (DME) at a ratio of 1 mol / liter. A non-aqueous electrolyte solution was prepared.
【００２２】〔電池の作製〕以上の正負両極及び非水系
電解液を用いて本発明電池ＢＡ１を作製した（電池寸
法：直径２４ｍｍ；厚み３．０ｍｍ）。セパレータとし
ては、イオン透過性を有するポリプロピレン製の微多孔
膜を用い、これに先に述べた非水系電解液を含浸させ
た。[Production of Battery] The battery BA1 of the present invention was produced using the positive and negative electrodes and the non-aqueous electrolyte solution described above (battery size: diameter 24 mm; thickness 3.0 mm). As the separator, a polypropylene microporous membrane having ion permeability was used and impregnated with the non-aqueous electrolyte solution described above.
【００２３】図１は作製した本発明電池ＢＡ１の模式的
断面図であり、図示の本発明電池ＢＡ１は、正極１、負
極２、これら両電極を離間するセパレータ３、正極缶
４、負極缶５、正極集電体６、負極集電体７及びポリプ
ロピレン製の絶縁パッキング８などからなる。正極１及
び負極２は、非水系電解液を含浸したセパレータ３を介
して対向して正負両極缶４、５が形成する電池ケース内
に収容されており、正極１は正極集電体６を介して正極
缶４に、また負極２は負極集電体７を介して負極缶５に
接続され、電池内部で生じた化学エネルギーを正極缶４
及び負極缶５の両端子から電気エネルギーとして外部へ
取り出し得るようになっている。FIG. 1 is a schematic cross-sectional view of the produced battery BA1 of the present invention. The illustrated battery BA1 of the present invention includes a positive electrode 1, a negative electrode 2, a separator 3 for separating these two electrodes, a positive electrode can 4, and a negative electrode can 5. , A positive electrode current collector 6, a negative electrode current collector 7, an insulating packing 8 made of polypropylene, and the like. The positive electrode 1 and the negative electrode 2 are housed in a battery case formed by the positive and negative bipolar cans 4 and 5 facing each other with a separator 3 impregnated with a non-aqueous electrolyte solution interposed therebetween. Is connected to the positive electrode can 4 and the negative electrode 2 is connected to the negative electrode can 5 via the negative electrode current collector 7 so that chemical energy generated inside the battery is transferred to the positive electrode can 4.
Also, both terminals of the negative electrode can 5 can be taken out as electric energy to the outside.
【００２４】（実施例２）正極の作製において、複合酸
化物粉末１００モル部に対して、硝酸リチウムをリチウ
ム換算モル数で１０モル部添加混合したこと以外は実施
例１と同様にして本発明電池ＢＡ２を作製した。Example 2 The present invention was carried out in the same manner as in Example 1 except that 10 parts by mole of lithium nitrate was added and mixed with 100 parts by mole of the composite oxide powder in the production of the positive electrode. Battery BA2 was produced.
【００２５】（実施例３）正極の作製において、複合酸
化物粉末１００モル部に対して、硝酸リチウムをリチウ
ム換算モル数で２０モル部添加混合したこと以外は実施
例１と同様にして本発明電池ＢＡ３を作製した。(Example 3) The present invention was carried out in the same manner as in Example 1 except that 20 mol parts of lithium nitrate in terms of lithium equivalent was added and mixed with 100 mol parts of the composite oxide powder in the production of the positive electrode. Battery BA3 was produced.
【００２６】（実施例４）正極の作製において、複合酸
化物粉末１００モル部に対して、硝酸リチウムをリチウ
ム換算モル数で３０モル部添加混合したこと以外は実施
例１と同様にして本発明電池ＢＡ４を作製した。Example 4 The present invention was carried out in the same manner as in Example 1 except that 30 parts by mole of lithium nitrate was added and mixed with 100 parts by mole of the composite oxide powder in the production of the positive electrode. Battery BA4 was produced.
【００２７】（実施例５）正極の作製において、複合酸
化物粉末１００モル部に対して、硝酸リチウムをリチウ
ム換算モル数で３５モル部添加混合したこと以外は実施
例１と同様にして本発明電池ＢＡ５を作製した。Example 5 The present invention was carried out in the same manner as in Example 1 except that 35 parts by mole of lithium nitrate was added and mixed with 100 parts by mole of the composite oxide powder in the production of the positive electrode. Battery BA5 was produced.
【００２８】（比較例）正極の作製において、硝酸リチ
ウムを添加しなかったこと以外は実施例１と同様にして
比較電池ＢＣ１を作製した。Comparative Example A comparative battery BC1 was produced in the same manner as in Example 1 except that lithium nitrate was not added in the production of the positive electrode.
【００２９】（放電容量）本発明電池ＢＡ１〜ＢＡ５及
び比較電池ＢＣ１について、常温（２５°Ｃ）下、３ｍ
Ａで充電終止電圧４．２Ｖまで充電した後、３ｍＡで放
電終止電圧２．７５Ｖまで放電して、各電池の放電容量
を調べた。結果を図２に示す。(Discharge capacity) For the batteries BA1 to BA5 of the present invention and the comparative battery BC1, 3 m at room temperature (25 ° C)
The battery was charged with A to the final charge voltage of 4.2 V, and then discharged with 3 mA to the final discharge voltage of 2.75 V, and the discharge capacity of each battery was examined. The results are shown in Figure 2.
【００３０】図２は、放電容量と硝酸リチウムの添加量
との関係を、縦軸に正極活物質１ｇ当たりの放電容量
（ｍＡｈ／ｇ）を、また横軸に複合酸化物粉末１００モ
ル部に対する硝酸リチウムの添加モル数をとって示した
グラフであり、同グラフより、硝酸リチウムの添加量を
３０モル部以下に抑えることが、放電容量の大きい電池
を得る上で好ましいことが分かる。FIG. 2 shows the relationship between the discharge capacity and the amount of lithium nitrate added, the vertical axis represents the discharge capacity per 1 g of the positive electrode active material (mAh / g), and the horizontal axis represents 100 parts by mole of the composite oxide powder. It is a graph showing the number of moles of lithium nitrate added. From the graph, it can be seen that it is preferable to suppress the amount of lithium nitrate added to 30 mol parts or less in order to obtain a battery having a large discharge capacity.
【００３１】（反応開始温度）本発明電池ＢＡ１〜ＢＡ
５及び比較電池ＢＣ１について、正極活物質と非水系電
解液との反応開始温度を示差熱分析により調べた。結果
を図３に示す。(Reaction Initiation Temperature) Batteries BA1 to BA of the present invention
For 5 and comparative battery BC1, the reaction initiation temperature of the positive electrode active material and the non-aqueous electrolyte was examined by differential thermal analysis. The results are shown in Fig. 3.
【００３２】図３は、反応開始温度（発熱開始温度）と
硝酸リチウムの添加量との関係を、縦軸に反応開始温度
（°Ｃ）を、また横軸に複合酸化物粉末１００モル部に
対する硝酸リチウムの添加モル数をとって示したグラフ
であり、同グラフより、硝酸リチウムの添加量を３モル
部以上とすることが反応開始温度を顕著に高める上で好
ましいことが分かる。FIG. 3 shows the relationship between the reaction start temperature (exothermic start temperature) and the amount of lithium nitrate added, the reaction start temperature (° C.) on the vertical axis and 100 parts by mole of the composite oxide powder on the horizontal axis. It is a graph showing the number of moles of lithium nitrate added, and it can be seen from the graph that the amount of lithium nitrate added is preferably 3 mole parts or more in order to markedly increase the reaction initiation temperature.
【００３３】叙上の実施例では、本発明を扁平型の非水
系二次電池に適用する場合を例に挙げて説明したが、電
池の形状は特に限定されず、円筒型、角型など種々の形
状の非水系二次電池に適用し得るものである。また、本
発明におけるリチウム化合物として硝酸リチウムを使用
した例を挙げて説明したが、水酸化リチウム等の先に挙
げた他のリチウム化合物を添加剤として使用した場合に
おいても本発明電池ＢＡ１〜ＢＡ５と同様の信頼性の高
い非水系二次電池が得られる。In the above embodiments, the case where the present invention is applied to the flat type non-aqueous secondary battery has been described as an example, but the shape of the battery is not particularly limited, and various types such as a cylindrical type and a square type are used. It can be applied to a non-aqueous secondary battery having the above shape. Moreover, although the example of using lithium nitrate as the lithium compound in the present invention has been described, the present invention batteries BA1 to BA5 are also used when other lithium compounds such as lithium hydroxide described above are used as an additive. The same highly reliable non-aqueous secondary battery can be obtained.
【００３４】[0034]
【発明の効果】本発明電池は、充電時の正極活物質と電
解液との反応開始温度が高いため電池温度が異常上昇し
にくく、それゆえ信頼性が高いなど、本発明は優れた特
有の効果を奏する。EFFECTS OF THE INVENTION The battery of the present invention has a high reaction initiation temperature between the positive electrode active material and the electrolytic solution at the time of charging, so that the battery temperature is unlikely to abnormally rise, and therefore the reliability is high. Produce an effect.
【図１】扁平型の本発明電池の断面図である。FIG. 1 is a cross-sectional view of a flat type battery of the present invention.
【図２】放電容量と硝酸リチウムの添加量との関係を示
すグラフである。FIG. 2 is a graph showing the relationship between the discharge capacity and the amount of lithium nitrate added.
【図３】反応開始温度と硝酸リチウムの添加量との関係
を示すグラフである。FIG. 3 is a graph showing the relationship between the reaction start temperature and the amount of lithium nitrate added.
ＢＡ１ 本発明電池 １ 正極 ２ 負極 ３ セパレータ BA1 Inventive battery 1 Positive electrode 2 Negative electrode 3 Separator
フロントページの続き (72)発明者 斎藤 俊彦 大阪府守口市京阪本通２丁目18番地 三洋 電機株式会社内 (72)発明者 西尾 晃治 大阪府守口市京阪本通２丁目18番地 三洋 電機株式会社内Front Page Continuation (72) Inventor Toshihiko Saito 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Koji Nishio 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.
Claims (2)
式Ｌｉx Ｎｉ1-y Ｃｏy Ｏw （０＜ｘ＜１．３、０≦ｙ
≦０．５、１．８≦ｗ≦２．２）で表される複合酸化物
を正極活物質とする正極とを備える非水系二次電池であ
って、前記複合酸化物に、酸化リチウム、水酸化リチウ
ム、硝酸リチウム、炭酸リチウム、ハロゲン化リチウ
ム、硫化リチウム、酢酸リチウム及び硫酸リチウムより
なる群から選ばれた少なくとも一種のリチウム化合物が
添加されていることを特徴とする非水系二次電池。1. A negative electrode using lithium as a negative electrode active material, and a composition formula Li x Ni 1-y Co y O w (0 <x <1.3, 0 ≦ y.
≦ 0.5, 1.8 ≦ w ≦ 2.2), which is a non-aqueous secondary battery comprising a positive electrode using a composite oxide represented by the following formula as a positive electrode active material: A non-aqueous secondary battery containing at least one lithium compound selected from the group consisting of lithium hydroxide, lithium nitrate, lithium carbonate, lithium halides, lithium sulfide, lithium acetate and lithium sulfate.
００モル部に対して、リチウム原子換算モル数で３〜３
０モル部添加されてなる請求項１記載の非水系二次電
池。2. The lithium compound is the composite oxide 1
3 to 3 in terms of moles of lithium atom with respect to 00 mole parts
The non-aqueous secondary battery according to claim 1, wherein 0 mol part is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5047316A JP3054511B2 (en) | 1993-02-12 | 1993-02-12 | Non-aqueous secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5047316A JP3054511B2 (en) | 1993-02-12 | 1993-02-12 | Non-aqueous secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06243870A true JPH06243870A (en) | 1994-09-02 |
| JP3054511B2 JP3054511B2 (en) | 2000-06-19 |
Family
ID=12771885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5047316A Expired - Lifetime JP3054511B2 (en) | 1993-02-12 | 1993-02-12 | Non-aqueous secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3054511B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853347A1 (en) * | 1996-12-20 | 1998-07-15 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
| JP2002117843A (en) * | 2000-10-05 | 2002-04-19 | Sony Corp | Nonaqueous electrolyte secondary battery |
| JP2003123755A (en) * | 2001-10-12 | 2003-04-25 | Matsushita Electric Ind Co Ltd | Positive electrode active material for nonaqueous electrolyte secondary battery and method of manufacturing the same |
| JP2005093248A (en) * | 2003-09-17 | 2005-04-07 | Sony Corp | Electrolyte, and battery using the same |
| KR100959115B1 (en) * | 2002-03-08 | 2010-05-25 | 삼성에스디아이 주식회사 | Positive active material for lithium secondary battery and lithium secondary battery comprising the same |
| CN114512632A (en) * | 2021-12-31 | 2022-05-17 | 国联汽车动力电池研究院有限责任公司 | Positive pole piece for lithium-sulfur battery and preparation method thereof |
-
1993
- 1993-02-12 JP JP5047316A patent/JP3054511B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853347A1 (en) * | 1996-12-20 | 1998-07-15 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
| US6124057A (en) * | 1996-12-20 | 2000-09-26 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
| JP2002117843A (en) * | 2000-10-05 | 2002-04-19 | Sony Corp | Nonaqueous electrolyte secondary battery |
| JP2003123755A (en) * | 2001-10-12 | 2003-04-25 | Matsushita Electric Ind Co Ltd | Positive electrode active material for nonaqueous electrolyte secondary battery and method of manufacturing the same |
| KR100959115B1 (en) * | 2002-03-08 | 2010-05-25 | 삼성에스디아이 주식회사 | Positive active material for lithium secondary battery and lithium secondary battery comprising the same |
| JP2005093248A (en) * | 2003-09-17 | 2005-04-07 | Sony Corp | Electrolyte, and battery using the same |
| JP4702511B2 (en) * | 2003-09-17 | 2011-06-15 | ソニー株式会社 | Secondary battery |
| CN114512632A (en) * | 2021-12-31 | 2022-05-17 | 国联汽车动力电池研究院有限责任公司 | Positive pole piece for lithium-sulfur battery and preparation method thereof |
| CN114512632B (en) * | 2021-12-31 | 2024-04-16 | 国联汽车动力电池研究院有限责任公司 | Positive electrode plate for lithium-sulfur battery and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| JP3054511B2 (en) | 2000-06-19 |
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