RU2013132124A - METHOD FOR PRODUCING LITHIUM-IRON-PHOSPHATE - Google Patents
METHOD FOR PRODUCING LITHIUM-IRON-PHOSPHATE Download PDFInfo
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- RU2013132124A RU2013132124A RU2013132124/05A RU2013132124A RU2013132124A RU 2013132124 A RU2013132124 A RU 2013132124A RU 2013132124/05 A RU2013132124/05 A RU 2013132124/05A RU 2013132124 A RU2013132124 A RU 2013132124A RU 2013132124 A RU2013132124 A RU 2013132124A
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- iron
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- phosphate
- lithium
- aqueous solution
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Abstract
Способ получения литий-железо-фосфата, включающий смешивание в стехиометрическом соотношении соединения железа с водным раствором, содержащим литий- и фосфат-ионы в присутствии углеродсодержащего вещества, активирование полученной смеси и последующую термическую обработку продукта взаимодействия, отличающийся тем, что в качестве соединения железа используют порошок оксида железа со степенью окисления железа в диапазоне +2,03… +2,2 с размером частиц до 125 мкм, смешивая его с водным раствором дигидрофосфата лития концентрации 30-57 вес.%, а активирование полученной смеси путем механического перемешивания осуществляют при температуре 15-30°С до образования геля.A method of producing lithium iron phosphate, comprising mixing in a stoichiometric ratio a compound of iron with an aqueous solution containing lithium and phosphate ions in the presence of a carbon-containing substance, activating the resulting mixture and subsequent heat treatment of the reaction product, characterized in that the iron compound is used iron oxide powder with an oxidation state of iron in the range + 2.03 ... +2.2 with a particle size of up to 125 microns, mixing it with an aqueous solution of lithium dihydrogen phosphate concentration of 30-57 wt.%, and tivirovanie mixture obtained by the mechanical mixing is carried out at a temperature of 15-30 ° C to form a gel.
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RU2013132124/05A RU2585646C2 (en) | 2013-07-11 | 2013-07-11 | Method for obtaining lithium-iron-phosphate |
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RU2013132124/05A RU2585646C2 (en) | 2013-07-11 | 2013-07-11 | Method for obtaining lithium-iron-phosphate |
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RU2013132124A true RU2013132124A (en) | 2015-01-20 |
RU2585646C2 RU2585646C2 (en) | 2016-05-27 |
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RU2013132124/05A RU2585646C2 (en) | 2013-07-11 | 2013-07-11 | Method for obtaining lithium-iron-phosphate |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113044820A (en) * | 2021-04-28 | 2021-06-29 | 四川思特瑞锂业有限公司 | Method for producing battery-grade lithium dihydrogen phosphate from crude lithium salt |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7390472B1 (en) * | 2002-10-29 | 2008-06-24 | Nei Corp. | Method of making nanostructured lithium iron phosphate—based powders with an olivine type structure |
DE10353266B4 (en) * | 2003-11-14 | 2013-02-21 | Süd-Chemie Ip Gmbh & Co. Kg | Lithium iron phosphate, process for its preparation and its use as electrode material |
CN102186768B (en) * | 2008-10-22 | 2013-08-21 | 株式会社Lg化学 | Lithium iron phosphate having an olivine structure, and preparation method thereof |
CN101901892A (en) * | 2009-05-26 | 2010-12-01 | 上海比亚迪有限公司 | Lithium-ion secondary battery anode and lithium-ion secondary battery |
RU2424599C1 (en) * | 2010-06-08 | 2011-07-20 | Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт (технический университет)" (ГОУВПО "МЭИ(ТУ)") | Manufacturing method of active mass of cathode of lithium current source |
RU2444815C1 (en) * | 2010-08-27 | 2012-03-10 | Учреждение Российской академии наук Институт химии твердого тела и механохимии Сибирского отделения РАН (ИХТТМ СО РАН) | METHOD TO PRODUCE HIGHLY DISPERSED CATHODE MATERIALS LixFeyMzPO4/C WITH OLIVINE STRUCTURE |
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- 2013-07-11 RU RU2013132124/05A patent/RU2585646C2/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113044820A (en) * | 2021-04-28 | 2021-06-29 | 四川思特瑞锂业有限公司 | Method for producing battery-grade lithium dihydrogen phosphate from crude lithium salt |
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RU2585646C2 (en) | 2016-05-27 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20170712 |