METHOD OF PREPARING INORGANIC PARTICLES AND INORGANIC PARTICLES PREPARED USING THE SAME
    7.
    发明申请
    METHOD OF PREPARING INORGANIC PARTICLES AND INORGANIC PARTICLES PREPARED USING THE SAME 有权
    制备无机颗粒的方法和使用其制备的无机颗粒

    公开(公告)号:US20150318548A1

    公开(公告)日:2015-11-05

    申请号:US14440202

    申请日:2013-11-26

    申请人: LG Chem, Ltd.

    IPC分类号: H01M4/58 C01B25/45 H01M4/04

    摘要: Disclosed is a method of preparing inorganic particles using a hydrothermal synthesis device, including introducing a precursor liquid or slurry stream including a reaction precursor for preparation of an inorganic material into a hydrothermal synthesis reactor, introducing a supercritical liquid stream including water into the hydrothermal synthesis reactor, preparing an inorganic slurry by hydrothermal reaction in the hydrothermal synthesis reactor and discharging the inorganic slurry therefrom, and filtering the discharged inorganic slurry, wherein the precursor liquid or slurry stream includes an NH3 source at a high temperature of the supercritical liquid stream and thus clogging of the stream in the hydrothermal synthesis reactor is inhibited by pH changes in the hydrothermal reaction.

    摘要翻译: 公开了使用水热合成装置制备无机颗粒的方法,包括将包含用于制备无机材料的反应前体的前体液体或浆料流引入水热合成反应器中,将包含水的超临界液体流引入水热合成反应器 ,在水热合成反应器中通过水热反应制备无机淤浆并从其中排出无机浆料,并对排出的无机浆料进行过滤,其中前体液体或浆料流在超临界液体流的高温下包含NH 3源,从而堵塞 的水热合成反应器中的流被水热反应中的pH变化抑制。

    Lithium iron phosphate of olivine crystal structure and lithium secondary battery using the same
    9.
    发明授权
    Lithium iron phosphate of olivine crystal structure and lithium secondary battery using the same 有权
    橄榄石晶体结构的磷酸铁锂和使用相同的锂二次电池

    公开(公告)号:US08906552B2

    公开(公告)日:2014-12-09

    申请号:US13631130

    申请日:2012-09-28

    申请人: LG Chem, Ltd.

    摘要: Disclosed is lithium iron phosphate having an olivine crystal structure wherein carbon (C) is coated on particle surfaces of the lithium iron phosphate, wherein, when a powder of the lithium iron phosphate is dispersed in water, water is removed from the resulting dispersion and the resulting lithium iron phosphate residue is quantitatively analyzed, a ratio of the carbon-released lithium iron phosphate with respect to the total weight of the carbon-coated lithium iron phosphate is 0.005% by weight or less. Advantageously, the olivine-type lithium iron phosphate is not readily separated through uniform thin film coating on the surface of the lithium iron phosphate and exhibits superior conductivity and density, since carbon is coated on particle surfaces of lithium iron phosphate in a state in which the amount of carbon released in water is considerably small.

    摘要翻译: 公开了具有橄榄石晶体结构的磷酸铁锂,其中碳(C)被涂覆在磷酸铁锂的颗粒表面上,其中当磷酸铁锂的粉末分散在水中时,从所得分散体中除去水, 定量分析得到的磷酸铁锂残渣,碳释放的磷酸铁锂的比例相对于碳涂覆的磷酸铁锂的总重量的比例为0.005重量%以下。 有利的是,橄榄石型磷酸铁锂在磷酸铁锂的表面上不容易通过均匀的薄膜涂层分离,并且由于碳被涂覆在磷酸铁锂的颗粒表面上,所以表现出优异的导电性和密度, 在水中释放的碳量相当小。