JP2014093210A5 - - Google Patents
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- JP2014093210A5 JP2014093210A5 JP2012243433A JP2012243433A JP2014093210A5 JP 2014093210 A5 JP2014093210 A5 JP 2014093210A5 JP 2012243433 A JP2012243433 A JP 2012243433A JP 2012243433 A JP2012243433 A JP 2012243433A JP 2014093210 A5 JP2014093210 A5 JP 2014093210A5
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- Prior art keywords
- diffraction peak
- diffraction
- plane
- polysulfide
- titanium
- Prior art date
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- 229920001021 Polysulfide Polymers 0.000 description 3
- 229910010320 TiS Inorganic materials 0.000 description 3
- 239000005077 polysulfide Substances 0.000 description 3
- 150000008117 polysulfides Polymers 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Description
以下、まず、本発明のリチウム二次電池用正極活物質の有効成分である多硫化チタンについて具体的に説明する。 Hereinafter, first, it will be described in detail some polysulfide titanium active ingredient of a lithium secondary for primary batteries the positive electrode active material of the present invention.
多硫化チタン
本発明のリチウム二次電池用正極活物質は、組成式：ＴｉＳｎ（式中、２＜ｎ＜１０である）で表される平均組成を有する非晶質状態の多硫化チタンの微粉末からなり、CuKα線によるＸ線回折図における回折角２θ＝１０°〜６０°の範囲内において、ＴｉＳ２結晶に基づく回折ピークが認められるものである。具体的には、ＴｉＳ２結晶の（００１）面に基づく回折角２θ＝１５．５±１°の回折ピーク、（０１１）面に基づく２θ＝３４±１°の回折ピーク、（１０２）面に基づく２θ＝４４±１°の回折ピーク、（１１０）面に基づく２θ＝５４±１°の回折ピークの内で、２θ＝３４±１°の回折ピークを含む少なくとも２ヶ所に回折ピークが認められ、２θ＝３４±１°の回折ピークの半値幅が０．３°〜２．５°の範囲内であることを特徴とするものである。
Cathode active material for lithium secondary batteries of polysulfide titanium present invention, the composition formula: TiS n (wherein, 2 <n <10) polysulfide titanium amorphous state having an average composition represented by A diffraction peak based on a TiS 2 crystal is observed within a diffraction angle 2θ = 10 ° to 60 ° in an X-ray diffraction diagram by CuKα rays. Specifically, a diffraction angle 2θ = 15.5 ± 1 ° based on the (001) plane of the TiS 2 crystal, a diffraction peak 2θ = 34 ± 1 ° based on the (011) plane, and (102) plane Among the diffraction peak of 2θ = 44 ± 1 ° based on the diffraction peak and the diffraction peak of 2θ = 54 ± 1 ° based on the (110) plane, diffraction peaks are observed in at least two places including the diffraction peak of 2θ = 34 ± 1 °. The half width of the diffraction peak at 2θ = 34 ± 1 ° is in the range of 0.3 ° to 2.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012243433A JP5991618B2 (en) | 2012-11-05 | 2012-11-05 | Positive electrode active material for lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012243433A JP5991618B2 (en) | 2012-11-05 | 2012-11-05 | Positive electrode active material for lithium secondary battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014093210A JP2014093210A (en) | 2014-05-19 |
| JP2014093210A5 true JP2014093210A5 (en) | 2015-09-24 |
| JP5991618B2 JP5991618B2 (en) | 2016-09-14 |
Family
ID=50937148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012243433A Active JP5991618B2 (en) | 2012-11-05 | 2012-11-05 | Positive electrode active material for lithium secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5991618B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016143701A1 (en) * | 2015-03-06 | 2016-09-15 | 国立研究開発法人産業技術総合研究所 | Molded body containing transition metal polysulfide, electrode for batteries and method for producing same |
| CN114804225A (en) * | 2022-03-15 | 2022-07-29 | 远景动力技术(江苏)有限公司 | Ternary material precursor and application thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173957A (en) * | 1983-03-20 | 1984-10-02 | Hitachi Maxell Ltd | Nonaqueous electrolyte battery |
| JP3067426B2 (en) * | 1992-11-30 | 2000-07-17 | キヤノン株式会社 | Lithium secondary battery and method for producing positive electrode active material |
| JP2004179160A (en) * | 2002-11-26 | 2004-06-24 | Samsung Sdi Co Ltd | Positive electrode for lithium sulfur battery |
| JP5006548B2 (en) * | 2005-01-31 | 2012-08-22 | パナソニック株式会社 | Thermal battery |
| JP5142415B2 (en) * | 2011-01-18 | 2013-02-13 | 株式会社豊田自動織機 | Positive electrode for lithium ion secondary battery and lithium ion secondary battery |
-
2012
- 2012-11-05 JP JP2012243433A patent/JP5991618B2/en active Active
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