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LITHIUM-IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR PRODUCTION THEREOF
LITHIUM-IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR PRODUCTION THEREOF
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机译：具有橄榄石结构的磷酸锂铁及其生产方法
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摘要
FIELD: chemistry.;SUBSTANCE: invention can be used in chemical industry and electronics. Olivine-type lithium-iron phosphate consists of secondary particles having mean particle diameter (D50) of 5-100 mcm, formed via aggregation of primary particles having mean particle diameter (D50) of 50-550 nm. The lithium-iron phosphate has a composition of formula Li1+aFe1-xMx(PO4-b)Xb, wherein M is selected from Al, Mg, Ni, Co, Mn, Ti, Ga, Cu, V, Nb, Zr, Ce, In, Zn, Y and combination thereof, X is selected from F, S, N, wherein - 0.5 ≤ a ≤ +0.5, 0 ≤ x ≤ 0.5 and 0 ≤ b ≤ 0.1. The secondary particles have porosity of 15-40%. The disclosed lithium-iron phosphate is used as a cathode active material.;EFFECT: invention enables to obtain lithium-iron phosphate having high electroconductivity and strength, thereby increasing capacitance and energy density of electrodes and batteries.;20 cl, 8 dwg
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机译：领域：化学。;物质：发明可用于化学工业和电子领域。橄榄石型磷酸锂铁由平均粒径（D50）为50-550nm的一次粒子的聚集形成的平均粒径（D50）为5-100mcm的二次粒子组成。磷酸铁锂的分子式为Li 1 + a Fe 1-x M x （PO 4-b < / Sub>）X b ，其中M选自Al，Mg，Ni，Co，Mn，Ti，Ga，Cu，V，Nb，Zr，Ce，In，Zn，Y及其组合其中，X选自F，S，N，其中-0.5≤a≤+ 0.5，0≤x≤0.5和0≤b≤0.1。次级颗粒具有15-40％的孔隙率。所公开的磷酸锂铁用作正极活性材料。效果：本发明能够获得具有高导电性和强度的磷酸锂铁，从而增加电极和电池的电容和能量密度。20 cl，8 dwg
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