JP2012012248A5 - - Google Patents
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- JP2012012248A5 JP2012012248A5 JP2010149661A JP2010149661A JP2012012248A5 JP 2012012248 A5 JP2012012248 A5 JP 2012012248A5 JP 2010149661 A JP2010149661 A JP 2010149661A JP 2010149661 A JP2010149661 A JP 2010149661A JP 2012012248 A5 JP2012012248 A5 JP 2012012248A5
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- JP
- Japan
- Prior art keywords
- composite oxide
- potassium
- titanium composite
- lithium
- tetratitanate
- 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.)
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Claims (8)
Ｃｕ−Ｋα線源を用いたＸ線回折スペクトルにおいて、
（２００）面のピーク強度Ｉａ、（００４）面のピーク強度Ｉｃ、及び、（３１−３）面のピーク強度Ｉｂとの間に、
Ｉａ＞Ｉｂ＞Ｉｃとなる関係が成立する、一般式Ｋ２Ｔｉ４Ｏ９で表される四チタン酸カリウムのカリウムをリチウムに交換することによって得られる
ことを特徴とするリチウムチタン複合酸化物。 Lithium titanium composite oxide,
In an X-ray diffraction spectrum using a Cu-Kα radiation source,
Between the peak intensity Ia of the (200) plane, the peak intensity Ic of the (004) plane, and the peak intensity Ib of the (31-3) plane,
A lithium-titanium composite oxide characterized by being obtained by exchanging potassium of potassium tetratitanate represented by the general formula K 2 Ti 4 O 9 with lithium, which satisfies the relationship of Ia>Ib> Ic.
Ｃｕ−Ｋα線源を用いたＸ線回折スペクトルにおいて、
（２００）面のピーク強度Ｉａと、（００４）面のピーク強度Ｉｃとの間に、
１０．０＞Ｉａ／Ｉｃ＞２．０となる関係が成立する
ことを特徴とする請求項１に記載のリチウムチタン複合酸化物。 The potassium tetratitanate is
In an X-ray diffraction spectrum using a Cu-Kα radiation source,
Between the peak intensity Ia of the (200) plane and the peak intensity Ic of the (004) plane,
The relationship of 10.0> Ia / Ic> 2.0 is established. The lithium titanium composite oxide according to claim 1, wherein:
一般式Ｋ２Ｔｉ２Ｏ５で表される二チタン酸カリウムのカリウムイオンの一部を溶出させて組成変換した後、熱処理することによって得られたものである
ことを特徴とする請求項１または請求項２に記載のリチウムチタン複合酸化物。 The potassium tetratitanate is
A part obtained by elution of a part of potassium ions of potassium dititanate represented by the general formula K 2 Ti 2 O 5 to change the composition, and then heat treatment. The lithium titanium composite oxide according to claim 2.
ことを特徴とする請求項１〜請求項３のいずれかに記載のリチウムチタン複合酸化物。 The lithium titanium composite oxide according to any one of claims 1 to 3, wherein potassium remains and a residual potassium concentration is 1.4 mass% or less.
ことを特徴とする請求項１〜請求項４のいずれかに記載のリチウムチタン複合酸化物。 Lithium-titanium composite oxide according to any one of claims 1 to 4, wherein the specific surface area of the BET method is less than 3 or more 80 m 2 / g.
前記四チタン酸カリウムから水和四チタン酸化合物を得る工程と、
前記水和四チタン酸化合物からリチウムチタン複合酸化物を得る工程と、
を含むことを特徴とするリチウムチタン複合酸化物の製造方法。 Obtaining potassium tetratitanate from potassium dititanate;
Obtaining a hydrated tetratitanate compound from the potassium tetratitanate;
Obtaining a lithium titanium composite oxide from the hydrated tetratitanate compound;
A process for producing a lithium-titanium composite oxide, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010149661A JP5546971B2 (en) | 2010-06-30 | 2010-06-30 | Lithium titanium composite oxide, method for producing the same, and lithium ion secondary battery using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010149661A JP5546971B2 (en) | 2010-06-30 | 2010-06-30 | Lithium titanium composite oxide, method for producing the same, and lithium ion secondary battery using the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012064002A Division JP5511873B2 (en) | 2012-03-21 | 2012-03-21 | Potassium tetratitanate and hydrated tetratitanate compounds |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012012248A JP2012012248A (en) | 2012-01-19 |
| JP2012012248A5 true JP2012012248A5 (en) | 2014-03-27 |
| JP5546971B2 JP5546971B2 (en) | 2014-07-09 |
Family
ID=45599129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010149661A Active JP5546971B2 (en) | 2010-06-30 | 2010-06-30 | Lithium titanium composite oxide, method for producing the same, and lithium ion secondary battery using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5546971B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5269974B2 (en) | 2011-12-28 | 2013-08-21 | 株式会社クボタ | Method for producing titanium oxide compound, negative electrode, and lithium ion secondary battery |
| JP5511873B2 (en) * | 2012-03-21 | 2014-06-04 | 株式会社クボタ | Potassium tetratitanate and hydrated tetratitanate compounds |
| JP5314810B1 (en) * | 2013-05-07 | 2013-10-16 | 株式会社クボタ | Titanium oxide compound |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881618A (en) * | 1981-11-04 | 1983-05-17 | Nippon Soda Co Ltd | Preparation of potassium titanate fiber |
| JP2678810B2 (en) * | 1990-07-06 | 1997-11-19 | 株式会社クボタ | Method for producing potassium octatitanate polycrystalline fiber |
| JP2681030B2 (en) * | 1994-03-29 | 1997-11-19 | 科学技術庁無機材質研究所長 | Method of decomposing water using titanium oxide having a layered structure and its derivative as a photocatalyst |
| JP4435929B2 (en) * | 2000-03-14 | 2010-03-24 | 大塚化学株式会社 | Plate-like potassium titanate, method for producing the same, and friction material |
| KR101428833B1 (en) * | 2007-04-04 | 2014-08-08 | 오츠카 가가쿠 가부시키가이샤 | Potassium titanate, process for production of the same, friction materials, and resin compositions |
| JP5438891B2 (en) * | 2007-08-23 | 2014-03-12 | 株式会社東芝 | Non-aqueous electrolyte secondary battery negative electrode material, non-aqueous electrolyte secondary battery negative electrode material manufacturing method, non-aqueous electrolyte secondary battery, and battery pack |
| EP2184797A4 (en) * | 2007-08-28 | 2016-11-09 | Ishihara Sangyo Kaisha | Titanic acid compound, process for producing the titanic acid compound, electrode active material containing the titanic acid compound, and storage device using the electrode active material |
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2010
- 2010-06-30 JP JP2010149661A patent/JP5546971B2/en active Active
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