JPH05290851A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPH05290851A JPH05290851A JP4118119A JP11811992A JPH05290851A JP H05290851 A JPH05290851 A JP H05290851A JP 4118119 A JP4118119 A JP 4118119A JP 11811992 A JP11811992 A JP 11811992A JP H05290851 A JPH05290851 A JP H05290851A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- positive electrode
- active material
- battery
- compound
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、非水系電解質電池に係
わり、特にリチウム・ニッケル複合酸化物を正極活物質
とする非水系電解質電池における電池容量の増大を目的
とした当該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 electrolyte battery, and more particularly to an improvement of the positive electrode active material for the purpose of increasing the battery capacity of the non-aqueous electrolyte battery using a lithium-nickel composite oxide as the positive electrode active material. Regarding
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】近年、
非水系電解質電池の正極活物質として、ＬｉＮｉＯ2 が
提案されているが、このＬｉＮｉＯ2 （１２０ｍＡｈ／
ｇ）はＬｉＣｏＯ2 （１６０ｍＡｈ／ｇ）に比し容量が
小さく、この点が実用化を図る上での障壁となってい
た。2. Description of the Related Art In recent years,
LiNiO 2 has been proposed as a positive electrode active material for a non-aqueous electrolyte battery. This LiNiO 2 (120 mAh /
g) has a smaller capacity than LiCoO 2 (160 mAh / g), and this point has been a barrier to practical use.
【０００３】そこで、ＬｉＮｉＯ2 の容量がこのように
低い理由を鋭意研究したところ、従来、ＬｉＮｉＯ2 は
水酸化リチウムと水酸化ニッケルとを、モル比１：１で
混合し、加熱処理することにより作製されているが、こ
の混合比ではＬｉ2 Ｎｉ8 Ｏ10などが副生してしまい、
その結果、純粋なＬｉＮｉＯ2 が得られにくいことが分
かった。Then, as a result of intensive studies on the reason why the capacity of LiNiO 2 is so low, LiNiO 2 has hitherto been obtained by mixing lithium hydroxide and nickel hydroxide at a molar ratio of 1: 1 and heat-treating them. Although produced, Li 2 Ni 8 O 10 etc. are by-produced at this mixing ratio,
As a result, it was found that pure LiNiO 2 was difficult to obtain.
【０００４】本発明は、以上の事情に鑑みなされたもの
であって、その目的とするところは、ＬｉＣｏＯ2 にも
匹敵する程の大きな容量を有する、リチウム・ニッケル
複合酸化物を正極活物質とする非水系電解質電池を提供
するにある。The present invention has been made in view of the above circumstances, and an object thereof is to use a lithium-nickel composite oxide having a large capacity comparable to that of LiCoO 2 as a positive electrode active material. There is a non-aqueous electrolyte battery provided.
【０００５】[0005]
【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電解質電池（以下、「本発明電
池」と称する。）は、リチウム金属、又は、リチウムを
吸蔵放出可能な物質を主材とする負極と、組成式ＬｉX
ＮｉＯy （１．１５≦ｘ≦１．７５、ｙ＞０）で表され
る化合物を活物質とする正極とを備えてなる。A non-aqueous electrolyte battery according to the present invention (hereinafter referred to as "the battery of the present invention") for achieving the above object is lithium metal or a substance capable of inserting and extracting lithium. With a negative electrode as a main component and a composition formula Li X
A positive electrode using a compound represented by NiO y (1.15 ≦ x ≦ 1.75, y> 0) as an active material.
【０００６】本発明電池における正極活物質たる組成式
ＬｉX ＮｉＯy で表される化合物は、Ｌｉ：Ｎｉの原子
比の値すなわち前記組成式中のｘの値が１．１５〜１．
７５の範囲にあるものである。ｘの値がこのように限定
されるのは、後述する実施例に示すように、ｘの値が
１．１５〜１．７５のものが大きな放電容量（１５０ｍ
Ａｈ／ｇ以上）を有するとの知見に基づく。The compound represented by the composition formula Li X NiO y , which is the positive electrode active material in the battery of the present invention, has a Li: Ni atomic ratio value, that is, a value of x in the composition formula of 1.15 to 1.
It is in the range of 75. The value of x is limited in this way, as shown in Examples described later, when the value of x is 1.15 to 1.75, the discharge capacity (150 m) is large.
Ah / g or more).
【０００７】上記組成式ＬｉX ＮｉＯy で表される化合
物は、たとえば、水酸化リチウム（ＬｉＯＨ）と水酸化
ニッケル（Ｎｉ（ＯＨ）2 ）とを、水酸化ニッケル１モ
ルに対して水酸化リチウム１．１５〜１．７５モルの所
定の比率で混合した後、空気中にて４５０〜９００°Ｃ
で加熱処理することにより得られる。なお、リチウム原
料として使用し得るリチウム化合物としては、他に酸化
リチウム、炭酸リチウム、硝酸リチウムなどが、またニ
ッケル原料として使用し得るニッケル化合物としては、
他に酸化ニッケル、炭酸ニッケル又は硝酸ニッケルなど
が挙げられる。The compound represented by the above composition formula Li x NiO y is, for example, lithium hydroxide (LiOH) and nickel hydroxide (Ni (OH) 2 ), and lithium hydroxide is added to 1 mol of nickel hydroxide. After mixing at a predetermined ratio of 1.15 to 1.75 mol, in air 450 to 900 ° C
It is obtained by heat treatment in. Incidentally, as a lithium compound that can be used as a lithium raw material, other lithium oxide, lithium carbonate, lithium nitrate, and the like, and as a nickel compound that can be used as a nickel raw material,
Other examples include nickel oxide, nickel carbonate, nickel nitrate and the like.
【０００８】本発明における正極は、このようにして得
た正極活物質を、要すれば所定の粒径に粉砕した後、ア
セチレンブラック、カーボンブラック等の導電剤及びポ
リテトラフルオロエチレン（ＰＴＦＥ）、ポリフッ化ビ
ニリデン（ＰＶｄＦ）等の結着剤と、通常、重量比８０
〜９０：５〜１５：４〜１５程度の比率で混合して正極
合剤とした後、所定の圧力（通常、０．５〜２．５トン
／ｃｍ2 ）で加圧成型し、得られた成型物を集電体に圧
延し、加熱処理（通常、１００〜２５０°Ｃ程度で加
熱）することにより作製される。In the positive electrode of the present invention, the positive electrode active material thus obtained is pulverized to a predetermined particle size if necessary, and then a conductive agent such as acetylene black or carbon black and polytetrafluoroethylene (PTFE), A binder such as polyvinylidene fluoride (PVdF) and a weight ratio of 80 are usually used.
˜90: 5 to 15: 4 to 15 and mixed at a ratio of about 5 to form a positive electrode mixture, and then pressure-molded at a predetermined pressure (usually 0.5 to 2.5 ton / cm 2 ). The molded product is rolled into a current collector and heat-treated (usually heated at about 100 to 250 ° C).
【０００９】本発明電池における負極は、リチウム金属
又はリチウムを吸蔵放出可能な物質を主材として構成さ
れる。リチウム金属を使用する場合は、圧延、打ち抜き
などにより円板状等の所定の形状に加工して使用に供せ
られる。The negative electrode in the battery of the present invention is mainly composed of lithium metal or a substance capable of inserting and extracting lithium. When lithium metal is used, it is processed into a predetermined shape such as a disk shape by rolling, punching or the like and then used.
【００１０】リチウムを吸蔵放出可能な物質としては、
リチウム合金や、黒鉛、コークス等の炭素材料が例示さ
れる。炭素材料などの粉末状物質を使用する場合は、こ
れと結着剤及び必要に応じて導電剤とを、通常、重量比
８０〜９０：５〜１５：４〜１０程度の比率で混合して
負極合剤とした後、所定の圧力（通常、０．５〜２．５
トン／ｃｍ2 ）で加圧成型することにより負極を作製す
る。As a substance capable of inserting and extracting lithium,
Examples include lithium alloys and carbon materials such as graphite and coke. When a powdery substance such as a carbon material is used, it is usually mixed with a binder and optionally a conductive agent in a weight ratio of about 80 to 90: 5 to 15: 4 to 10. After using it as a negative electrode mixture, a predetermined pressure (usually 0.5 to 2.5
A negative electrode is produced by pressure molding at ton / cm 2 ).
【００１１】本発明電池は、上述の如く、正極活物質と
して、ＬｉＮｉＯ2 に比しニッケルに対するリチウムの
含有率（組成式中のｘの値）の高いＬｉx ＮｉＯ
y （１．１５≦ｘ≦１．７５、ｙ＞０）を使用した点に
特徴を有する。それゆえ、非水系電解質、セパレータ
（液体電解質を使用する場合）等の他の部材について
は、従来非水系電解質電池用として実用され、或いは提
案されている種々の材料を使用することが可能である。In the battery of the present invention, as described above, as the positive electrode active material, Li x NiO having a higher content ratio of lithium to nickel (value of x in the composition formula) than LiNiO 2.
The feature is that y (1.15 ≦ x ≦ 1.75, y> 0) is used. Therefore, for other members such as the non-aqueous electrolyte and the separator (when the liquid electrolyte is used), it is possible to use various materials that have been practically used or proposed for the conventional non-aqueous electrolyte battery. ..
【００１２】[0012]
【作用】本発明電池においては、製造時の副生物の含有
量の少ないリチウム含有量が特定の範囲にあるリチウム
・ニッケル複合酸化物が正極活物質として使用されてい
るので、正極におけるリチウムの吸蔵放出量が、副生物
を多く含有するＬｉＮｉＯ2 に比し、多くなる。In the battery of the present invention, a lithium-nickel composite oxide having a low lithium content in the production range, which is a small by-product content, is used as the positive electrode active material. The amount released is larger than that of LiNiO 2 containing a large amount of by-products.
【００１３】[0013]
【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 to the following examples, and various modifications can be made without departing from the scope of the invention. Is possible.
【００１４】（実施例１） 〔正極の作製〕水酸化リチウムと水酸化ニッケルとを、
モル比１．１５：１で混合した後、６００°Ｃで２０時
間加熱処理してリチウム・ニッケル複合酸化物を得た。
このリチウム・ニッケル複合酸化物をＩＣＰ発光法によ
り組成分析した結果、Ｌｉ対Ｎｉの原子比は１．１５：
１であった。次いで、このリチウム・ニッケル複合酸化
物と、導電剤としてのアセチレンブラック及び結着剤と
してのフッ素樹脂粉末とを、重量比９０：６：４の比率
で混合して正極合剤を得た。このようにして得た正極合
剤を、２トン／ｃｍ2 の圧力で直径２０ｍｍの円板状に
加圧成型し、得られた成型物を集電体としてのステンレ
ス製の網目状円板に圧延し、２５０°Ｃで２時間真空下
で加熱処理して正極を作製した。Example 1 [Preparation of Positive Electrode] Lithium hydroxide and nickel hydroxide were mixed with
After mixing at a molar ratio of 1.15: 1, heat treatment was performed at 600 ° C. for 20 hours to obtain a lithium-nickel composite oxide.
As a result of composition analysis of this lithium-nickel composite oxide by ICP emission method, the atomic ratio of Li to Ni was 1.15:
It was 1. Next, this lithium-nickel composite oxide was mixed with acetylene black as a conductive agent and fluororesin powder as a binder in a weight ratio of 90: 6: 4 to obtain a positive electrode mixture. The positive electrode mixture thus obtained was pressure-molded at a pressure of 2 ton / cm 2 into a disk shape having a diameter of 20 mm, and the obtained molded product was formed into a stainless mesh disk as a current collector. It was rolled and heat-treated under vacuum at 250 ° C. for 2 hours to produce a positive electrode.
【００１５】〔負極の作製〕圧延、打ち抜きにより、直
径２０ｍｍのリチウム金属からなる円板状の負極を作製
した。[Production of Negative Electrode] A disk-shaped negative electrode made of lithium metal having a diameter of 20 mm was produced by rolling and punching.
【００１６】〔非水系電解液の調製〕プロピレンカーボ
ネートと１，２−ジメトキシエタンとの体積比１：１の
混合溶媒に、過塩素酸リチウム（ＬｉＣｌＯ4 ）を１モ
ル／リットル溶かして非水系電解液を調製した。[Preparation of Non-Aqueous Electrolyte] Lithium perchlorate (LiClO 4 ) was dissolved in a mixed solvent of propylene carbonate and 1,2-dimethoxyethane in a volume ratio of 1: 1 at 1 mol / liter to carry out non-aqueous electrolysis. A liquid was prepared.
【００１７】〔非水系電解質電池の作製〕上記正負両
極、非水系電解液の他、正極缶、負極缶などを使用し
て、本発明に係る扁平型の非水系電解質電池ＢＡ１（電
池寸法は直径：２４ｍｍ、厚さ：３ｍｍ）を作製した。
なお、セパレータとしては、ポリプロピレン製の微孔性
薄膜を使用し、これに上記した非水系電解液を含浸させ
た。[Preparation of Non-Aqueous Electrolyte Battery] A flat non-aqueous electrolyte battery BA1 according to the present invention (battery size is a diameter is used by using the positive and negative electrodes, non-aqueous electrolyte solution, positive electrode can, negative electrode can, etc. : 24 mm, thickness: 3 mm).
As the separator, a microporous thin film made of polypropylene was used, which was impregnated with the above-mentioned non-aqueous electrolyte solution.
【００１８】図１は作製した電池ＢＡ１の断面図であ
り、同図に示す電池ＢＡ１は、正極１、負極２、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、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ＢＡ１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 cross-sectional view of the manufactured battery BA1. The battery BA1 shown in the drawing is a positive electrode 1, a negative electrode 2, a separator 3, a positive electrode can 4, a negative electrode can 5, a positive electrode current collector 6, and a negative electrode current collector. It comprises a body 7 and an insulating packing 8 made of polypropylene. The positive electrode 1 and the negative electrode 2 are housed in a battery case formed by positive and negative bipolar cans 4 and 5 that face each other with a separator 3 in between, and the positive electrode 1 is in the positive electrode can 4 via a positive electrode current collector 6.
Further, the negative electrode 2 is connected to the negative electrode can 5 via the negative electrode current collector 7, and the chemical energy generated inside the battery BA1 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.
【００１９】（実施例２〜８）水酸化ニッケル１モルに
対する水酸化リチウムの混合モル数を、それぞれ１．
２、１．３、１．４、１．５、１．６、１．７、１．７
５に代えたこと以外は実施例１と同様にして、７種の組
成の異なる正極活物質を使用した本発明電池ＢＡ２〜Ｂ
Ａ８を作製した。(Examples 2 to 8) The mixed mole number of lithium hydroxide to 1 mole of nickel hydroxide was 1.
2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.7
Inventive batteries BA2 to B using seven kinds of positive electrode active materials having different compositions in the same manner as in Example 1 except that 5 was used.
A8 was produced.
【００２０】（比較例１〜５）水酸化ニッケル１モルに
対する水酸化リチウムの混合モル数を、それぞれ１．
０、１．０５、１．１．、１．８、１．９に代えたこと
以外は実施例１と同様にして、５種の組成の異なる正極
活物質を使用した比較電池ＢＣ１〜ＢＣ５を作製した。(Comparative Examples 1 to 5) The mixing mole number of lithium hydroxide to 1 mole of nickel hydroxide was 1.
0, 1.05, 1.1. Comparative batteries BC1 to BC5 using five kinds of positive electrode active materials having different compositions were prepared in the same manner as in Example 1 except that 1.8, 1.9 was used instead.
【００２１】実施例１〜８で作製した本発明電池ＢＡ１
〜ＢＡ８及び比較例１〜５で作製した比較電池ＢＣ１〜
ＢＣ５について、充電電流１ｍＡで４．３Ｖまで充電し
た後、放電電流３ｍＡで２．０Ｖまで放電したときの、
各電池の放電容量を調べた。結果を、図２に示す。Battery BA1 of the present invention produced in Examples 1 to 8
-BA8 and the comparative batteries BC1-made in Comparative Examples 1-5
Regarding BC5, when the battery was charged to 4.3 V at a charging current of 1 mA and then discharged to 2.0 V at a discharging current of 3 mA,
The discharge capacity of each battery was examined. The results are shown in Figure 2.
【００２２】図２は、縦軸に正極の正極活物質１グラム
当たりの放電容量（ｍＡｈ／ｇ）を、また横軸に正極活
物質として使用したリチウム・ニッケル複合酸化物の組
成式Ｌｉx ＮｉＯy 中のｘの値とって表したグラフであ
る。In FIG. 2, the vertical axis represents the discharge capacity (mAh / g) per gram of the positive electrode active material of the positive electrode, and the horizontal axis represents the composition formula Li x NiO of the lithium-nickel composite oxide used as the positive electrode active material. It is a graph expressed as the value of x in y .
【００２３】同グラフより、ｘの値が１．１５〜１．７
５であるリチウム・ニッケル複合酸化物は、ｘの値がこ
の範囲を外れるリチウム・ニッケル複合酸化物に比し、
単位重量当たりの放電容量が１５０ｍＡｈ／ｇ以上と、
大きいことが分かる。From the graph, the value of x is 1.15 to 1.7.
The lithium-nickel composite oxide of 5 has a value of x outside this range,
The discharge capacity per unit weight is 150 mAh / g or more,
It turns out to be big.
【００２４】叙上の実施例では本発明を扁平型電池に適
用する場合の具体例について説明したが、電池の形状に
特に制限はなく、本発明は円筒型、角型など、種々の形
状の非水系電解質電池に適用し得るものである。In the above embodiment, a specific example in which the present invention is applied to a flat battery is explained, but the shape of the battery is not particularly limited, and the present invention has various shapes such as a cylindrical shape and a square shape. It is applicable to non-aqueous electrolyte batteries.
【００２５】[0025]
【発明の効果】本発明電池においては、副生物の含有量
の少ないリチウム・ニッケル複合酸化物を活物質とした
正極が使用されているので、従来提案されているＬｉＮ
ｉＯ2を正極活物質とする電池に比し電池容量が大きい
など、本発明は優れた特有の効果を奏する。In the battery of the present invention, a positive electrode using a lithium-nickel composite oxide containing a small amount of by-products as an active material is used.
The present invention has excellent unique effects such as a larger battery capacity than a battery using iO 2 as a positive electrode active material.
【図１】本発明に係る扁平型非水系電解質電池の断面図
である。FIG. 1 is a cross-sectional view of a flat type non-aqueous electrolyte battery according to the present invention.
【図２】放電容量と組成式Ｌｉx ＮｉＯy 中のｘの値と
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 value of x in the composition formula Li x NiO y .
ＢＡ１ 扁平型非水系電解質電池 １ 正極 ２ 負極 BA1 Flat type non-aqueous electrolyte battery 1 Positive electrode 2 Negative electrode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 能間 俊之 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 黒河 宏史 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 上原 真弓 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Noma 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hiroshi Kurokawa 2-18 Keiyo Hondori, Moriguchi City, Osaka Sanyo (72) Inventor Mayumi Uehara 2-18 Keihan Hon-dori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.
Claims (2)
可能な物質を主材とする負極と、組成式ＬｉX ＮｉＯy
（１．１５≦ｘ≦１．７５、ｙ＞０）で表される化合物
を活物質とする正極とを備えてなることを特徴とする非
水系電解質電池。1. A negative electrode containing lithium metal or a substance capable of occluding and releasing lithium as a main material, and a composition formula Li X NiO y.
A non-aqueous electrolyte battery comprising a positive electrode having a compound represented by (1.15 ≦ x ≦ 1.75, y> 0) as an active material.
化合物との混合物を、４５０〜９００°Ｃで加熱処理し
て得たものである請求項１記載の非水系電解質電池。2. The non-aqueous electrolyte battery according to claim 1, wherein the compound is obtained by heating a mixture of a lithium compound and a nickel compound at 450 to 900 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4118119A JPH05290851A (en) | 1992-04-09 | 1992-04-09 | Nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4118119A JPH05290851A (en) | 1992-04-09 | 1992-04-09 | Nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05290851A true JPH05290851A (en) | 1993-11-05 |
Family
ID=14728507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4118119A Pending JPH05290851A (en) | 1992-04-09 | 1992-04-09 | Nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05290851A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0646546A1 (en) * | 1993-04-01 | 1995-04-05 | Fuji Chemical Industry Co., Ltd. | METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL |
| JPH09298061A (en) * | 1996-03-04 | 1997-11-18 | Sharp Corp | Nonaqueous secondary battery |
| JPH09298062A (en) * | 1996-03-04 | 1997-11-18 | Sharp Corp | Nonaqueous secondary battery |
| US8591860B2 (en) | 2009-12-28 | 2013-11-26 | Sumitomo Chemical Company, Limited | Method for manufacturing a lithium complex metal oxide |
-
1992
- 1992-04-09 JP JP4118119A patent/JPH05290851A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0646546A1 (en) * | 1993-04-01 | 1995-04-05 | Fuji Chemical Industry Co., Ltd. | METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL |
| EP0646546B1 (en) * | 1993-04-01 | 1998-05-20 | Fuji Chemical Industry Co., Ltd. | METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL |
| JPH09298061A (en) * | 1996-03-04 | 1997-11-18 | Sharp Corp | Nonaqueous secondary battery |
| JPH09298062A (en) * | 1996-03-04 | 1997-11-18 | Sharp Corp | Nonaqueous secondary battery |
| US8591860B2 (en) | 2009-12-28 | 2013-11-26 | Sumitomo Chemical Company, Limited | Method for manufacturing a lithium complex metal oxide |
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