JP2003034536A5 - - Google Patents
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- JP2003034536A5 JP2003034536A5 JP2001218995A JP2001218995A JP2003034536A5 JP 2003034536 A5 JP2003034536 A5 JP 2003034536A5 JP 2001218995 A JP2001218995 A JP 2001218995A JP 2001218995 A JP2001218995 A JP 2001218995A JP 2003034536 A5 JP2003034536 A5 JP 2003034536A5
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- JP
- Japan
- Prior art keywords
- composite oxide
- lithium nickel
- oxide powder
- manganese composite
- nickel manganese
- Prior art date
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【特許請求の範囲】
【請求項１】 粉砕及び混合された少なくともリチウム源化合物とニッケル源化合物とマンガン源化合物とを、ニッケル原子〔Ｎｉ〕とマンガン原子〔Ｍｎ〕とのモル比〔Ｎｉ／Ｍｎ〕として０．７〜９．０の範囲で含有するスラリーを、噴霧乾燥により乾燥させ、焼成することにより層状リチウムニッケルマンガン複合酸化物粉体となした後、該複合酸化物粉体を粉砕することを特徴とする層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項２】 層状リチウムニッケルマンガン複合酸化物粉体の粉砕を湿式粉砕により行い、次いで、噴霧乾燥により乾燥させる請求項１に記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項３】 層状リチウムニッケルマンガン複合酸化物粉体を粉砕した後、加熱処理する請求項１又は２に記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項４】 粉砕後の層状リチウムニッケルマンガン複合酸化物粉体が、下記一般式（Ｉ）で表される複合酸化物である請求項１乃至３のいずれかに記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【化１】
ＬｉxＮｉyＭｎzＱ(1-Y-Z)Ｏ2 （Ｉ）
〔式（Ｉ）中、ｘは、０＜ｘ≦１．２の数であり、ｙ及びｚはそれぞれ、０．７≦ｙ／ｚ≦９．０、及び、０≦１−ｙ−ｚ≦０．５の関係を満たす数であり、Ｑは、Ｍｇ、Ａｌ、Ｃａ、Ｆｅ、及びＣｏからなる群から選択されるいずれかの金属原子を示す。〕
【請求項５】 粉砕後の層状リチウムニッケルマンガン複合酸化物粉体が、ＢＥＴ法による比表面積０．１〜１０．０ｍ2／ｇのものである請求項１乃至４のいずれかに記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項６】 粉砕後の層状リチウムニッケルマンガン複合酸化物粉体が、タップ密度０．５〜３．０ｇ／ｃｃのものである請求項１乃至５のいずれかに記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項７】 粉砕後の層状リチウムニッケルマンガン複合酸化物粉体が、そのタップ密度の粉砕前のタップ密度に対する比１．１０以上のものである請求項１乃至６のいずれかに記載の層状リチウムニッケルマンガン複合酸化物粉体の製造方法。
【請求項８】 請求項１乃至７のいずれかに記載の製造方法で得られた層状リチウムニッケルマンガン複合酸化物粉体。
[Claims]
Claims 1. A pulverized and mixed at least lithium source compound, nickel source compound and manganese source compound in a molar ratio [Ni / Mn] of nickel atom [Ni] and manganese atom [Mn] of 0.7 to 0.7. After drying the slurry contained in the range of 9.0 by spray drying and baking to obtain a layered lithium nickel manganese composite oxide powder, the composite oxide powder is pulverized. A method for producing a lithium nickel manganese composite oxide powder.
2. The method for producing a layered lithium nickel manganese composite oxide powder according to claim 1, wherein the layered lithium nickel manganese composite oxide powder is pulverized by wet pulverization and then dried by spray drying.
3. The method for producing a layered lithium nickel manganese composite oxide powder according to claim 1, wherein the layered lithium nickel manganese composite oxide powder is pulverized and then heat-treated.
4. The layered lithium nickel manganese composite according to claim 1, wherein the pulverized layered lithium nickel manganese composite oxide is a composite oxide represented by the following general formula (I). A method for producing an oxide powder.
Embedded image
LixNiyMnzQ(1-YZ)OTwo (I)
[In the formula (I), x is a number satisfying 0 <x ≦ 1.2, and y and z are respectively 0.7 ≦ y / z ≦ 9.0 and 0 ≦ 1-yz ≦ This is a number that satisfies the relationship of 0.5, and Q represents any metal atom selected from the group consisting of Mg, Al, Ca, Fe, and Co. ]
5. The pulverized layered lithium nickel manganese composite oxide powder has a specific surface area of 0.1 to 10.0 m by a BET method.TwoThe method for producing a layered lithium nickel manganese composite oxide powder according to any one of claims 1 to 4, wherein
6. The layered lithium nickel manganese composite according to claim 1, wherein the pulverized layered lithium nickel manganese composite oxide has a tap density of 0.5 to 3.0 g / cc. A method for producing an oxide powder.
7. The layered lithium nickel manganese composite oxide powder after pulverization has a ratio of a tap density to a tap density before pulverization of 1.10 or more, according to any one of claims 1 to 6. A method for producing a lithium nickel manganese composite oxide powder.
Claim 8. A layered lithium nickel manganese composite oxide powder obtained by the production method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001218995A JP2003034536A (en) | 2001-07-19 | 2001-07-19 | Method for producing laminar lithium nickel manganese complex oxide powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001218995A JP2003034536A (en) | 2001-07-19 | 2001-07-19 | Method for producing laminar lithium nickel manganese complex oxide powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003034536A JP2003034536A (en) | 2003-02-07 |
| JP2003034536A5 true JP2003034536A5 (en) | 2007-07-26 |
Family
ID=19053076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001218995A Pending JP2003034536A (en) | 2001-07-19 | 2001-07-19 | Method for producing laminar lithium nickel manganese complex oxide powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003034536A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7393476B2 (en) * | 2001-11-22 | 2008-07-01 | Gs Yuasa Corporation | Positive electrode active material for lithium secondary cell and lithium secondary cell |
| EP1652819A1 (en) * | 2003-07-18 | 2006-05-03 | Tosoh Corporation | Lithium-nickel-manganese composite oxide, process for producing the same and use thereof |
| JP2005141983A (en) * | 2003-11-05 | 2005-06-02 | Mitsubishi Chemicals Corp | Layered lithium nickel base composite oxide powder for positive electrode material of lithium secondary battery, its manufacturing method, positive electrode for lithium secondary battery, and lithium secondary battery |
| JP2005347134A (en) * | 2004-06-04 | 2005-12-15 | Sumitomo Metal Mining Co Ltd | Manufacturing method of positive electrode active material for lithium ion secondary battery |
| EP2128096B1 (en) | 2007-01-26 | 2015-04-22 | Mitsui Mining & Smelting Co., Ltd | Lithium transition metal oxide having layered structure |
| JP4316656B1 (en) * | 2008-07-25 | 2009-08-19 | 三井金属鉱業株式会社 | Lithium transition metal oxide with layer structure |
| JP2013075773A (en) * | 2011-09-29 | 2013-04-25 | Tanaka Chemical Corp | Lithium-rich lithium metal complex oxide |
| WO2013077441A1 (en) | 2011-11-25 | 2013-05-30 | 三井金属鉱業株式会社 | Lithium metal complex oxide having layered structure |
| JP5204913B1 (en) | 2012-04-27 | 2013-06-05 | 三井金属鉱業株式会社 | Lithium metal composite oxide with layer structure |
| KR101637412B1 (en) | 2013-03-04 | 2016-07-07 | 미쓰이금속광업주식회사 | Lithium metal composite oxide powder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3130813B2 (en) * | 1995-11-24 | 2001-01-31 | 富士化学工業株式会社 | Lithium nickel composite oxide, method for producing the same, and positive electrode active material for secondary battery |
| JP3429633B2 (en) * | 1996-09-13 | 2003-07-22 | 三井化学株式会社 | Method for producing spherical lithium / nickel composite oxide and nonaqueous electrolyte battery using the same as positive electrode |
| JPH11135119A (en) * | 1997-10-27 | 1999-05-21 | Matsushita Electric Ind Co Ltd | Active material and positive plate for nonaqueous electrolyte secondary battery, and the nonaqueous electrolyte secondary battery |
| JP3355126B2 (en) * | 1998-01-30 | 2002-12-09 | 同和鉱業株式会社 | Positive electrode active material for lithium ion secondary battery, method for producing the same, and lithium ion secondary battery |
| JP3524762B2 (en) * | 1998-03-19 | 2004-05-10 | 三洋電機株式会社 | Lithium secondary battery |
| JP2001146426A (en) * | 1999-11-19 | 2001-05-29 | Mitsubishi Chemicals Corp | Method for producing lithium manganese compound oxide and lithium ion secondary battery using the same |
| JP4743804B2 (en) * | 1999-11-24 | 2011-08-10 | 日立金属株式会社 | Cathode active material for non-aqueous lithium secondary battery and method for producing the same |
-
2001
- 2001-07-19 JP JP2001218995A patent/JP2003034536A/en active Pending
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