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    Positive electrode materials for lithium-ion batteries and method for preparing the same
    1.
    发明授权
    Positive electrode materials for lithium-ion batteries and method for preparing the same 有权
    锂离子电池正极材料及其制备方法

    公开(公告)号：US09379382B2

    公开(公告)日：2016-06-28

    申请号：US14133678

    申请日：2013-12-19

    申请人： Jianhong Liu ,  Hongzhen Zhang ,  Qianling Zhang ,  Dayong Gui ,  Chuanxin He ,  Caizhen Zhu

    发明人： Jianhong Liu ,  Hongzhen Zhang ,  Qianling Zhang ,  Dayong Gui ,  Chuanxin He ,  Caizhen Zhu

    IPC分类号： H01B1/04 ,  H01M4/04 ,  C01B31/02 ,  H01M4/505 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/62 ,  H01M10/052

    CPC分类号： H01M4/505 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122

    摘要： A method for modifying a positive electrode material for a lithium-ion battery. The method includes: a) grinding a mixture of manganese dioxide and lithium carbonate, and calcining the mixture at no less than a temperature of 600° C. for no less than 20 hrs in the presence of air, to yield a powdery lithium manganese oxide (LiMn2O4); b) adding a precursor for forming a graphene-like structure to the powdery LiMn2O4, mixing, curing at a constant temperature of no less than 180° C. for between 2 and 4 hrs, grinding, and calcining at no less than a temperature of 500° C. for between 1 and 50 hrs in the presence of an inert gas, to yield a composite powder comprising a graphene-like structure and LiMn2O4; and c) collecting and sintering the composite powder at a temperature of between 300 and 500° C. for between 1 and 10 hrs in the presence of air.

    摘要翻译： 一种修改锂离子电池用正极材料的方法。 该方法包括：a）研磨二氧化锰和碳酸锂的混合物，并在600℃以下的温度下在空气存在下煅烧不少于20小时，得到粉末状的锂锰氧化物 （LiMn2O4）; b）向粉末状LiMn 2 O 4中添加用于形成石墨烯结构的前体，在不低于180℃的恒定温度下混合固化2至4小时，研磨并在不低于 500℃，在惰性气体存在下1至50小时，得到包含石墨烯结构和LiMn 2 O 4的复合粉末; 和c）在空气存在下，在300-500℃的温度下收集和烧结复合粉末1至10小时。

    Graphene material and method of preparing the same
    3.
    发明授权
    Graphene material and method of preparing the same 有权

    公开(公告)号：US09630852B2

    公开(公告)日：2017-04-25

    申请号：US14848274

    申请日：2015-09-08

    申请人： Jianhong Liu

    发明人： Jianhong Liu ,  Qianling Zhang ,  Chuanxin He ,  Jian Xu ,  Chao Hu

    IPC分类号： C01B31/04

    CPC分类号： C01B31/0446 ,  C01B32/182 ,  C01B32/184

    摘要： A method of preparing a graphene material. The method includes: (1) preparing a liquid polyacrylonitrile (LPAN) solution, stirring the LPAN solution to yield a cyclized polyacrylonitrile solution; (2) stirring the cyclized LPAN solution at between 200 and 300° C. to yield a thermally-oxidized polyacrylonitrile; (3) grinding and sieving the thermally-oxidized polyacrylonitrile, and drying a resulting product at room temperature, to yield a thermally-oxidized precursor; (4) calcining the thermally-oxidized precursor in the presence of an inert gas flow of between 10 and 500 mL/min for between 1 and 24 hrs at the temperature of between 400 and 1000° C., to yield a carbonized precursor; and (5) calcining the carbonized precursor in the presence of an inert gas flow of between 10 and 500 mL/min for between 1 and 10 hrs at the temperature of between 1000 and 3000° C., to yield a graphene material.

    Method of preparing carbon-coated cuprous oxide
    4.
    发明授权
    Method of preparing carbon-coated cuprous oxide 有权
    制备碳涂氧化亚铜的方法

    公开(公告)号：US09399243B1

    公开(公告)日：2016-07-26

    申请号：US14821782

    申请日：2015-08-09

    申请人： Jianhong Liu

    发明人： Jianhong Liu ,  Qianling Zhang ,  Chuanxin He ,  Jian Xu ,  Xiaoming Li ,  Chuhong Liao ,  Xiangning Ren

    IPC分类号： A01B1/00 ,  B01J27/20 ,  B01J23/72 ,  B01J23/835 ,  B05D7/00 ,  B05D3/04 ,  B05D3/02 ,  A01N25/26 ,  A01N59/20 ,  B01J37/08 ,  B01J37/02 ,  B01J35/02

    CPC分类号： B01J23/835 ,  A01N25/26 ,  A01N59/20 ,  B01J23/72 ,  B01J23/76 ,  B01J33/00 ,  B01J35/004 ,  B01J37/0219 ,  B01J37/084 ,  C01B32/00 ,  C01G3/02 ,  C08K3/00 ,  C09D5/1618

    摘要： A method of preparing carbon-coated cuprous oxide, including: (1) preparing a liquid polyacrylonitrile (LPAN) solution, stirring the LPAN solution to yield a cyclized polyacrylonitrile solution; (2) heating the cyclized LPAN solution to yield a thermally-oxidized polyacrylonitrile (OPAN); (3) mixing the thermally-oxidized polyacrylonitrile with a copper compound to yield a mixture, and adding to the mixture a hydrophilic solvent or a hydrophobic solvent, thus yielding a polyacrylonitrile coated copper compound; (4) drying the polyacrylonitrile coated copper compound in an oven until the solvent is evaporated completely and the polyacrylonitrile coated on the copper compound is crosslinked to form a solid, where yielding a carbonized precursor coated copper compound; and (5) calcining the carbonized precursor coated copper compound in the presence of an inert gas flow of between 10 and 500 mL/min.

    摘要翻译： 一种制备碳涂覆的氧化亚铜的方法，包括：（1）制备液态聚丙烯腈（LPAN）溶液，搅拌LPAN溶液以产生环化的聚丙烯腈溶液; （2）加热环化的LPAN溶液以产生热氧化聚丙烯腈（OPAN）; （3）将热氧化聚丙烯腈与铜化合物混合，得到混合物，向混合物中加入亲水性溶剂或疏水性溶剂，得到聚丙烯腈涂布的铜化合物; （4）在烘箱中干燥聚丙烯腈涂覆的铜化合物直到溶剂完全蒸发，并且涂覆在铜化合物上的聚丙烯腈交联以形成固体，其中产生碳化前体包被的铜化合物; 和（5）在10-500mL / min的惰性气流存在下煅烧碳化前体涂覆的铜化合物。

    Method of preparing graphene-coated alumina and graphene-coated alumina prepared using the method
    5.
    发明授权
    Method of preparing graphene-coated alumina and graphene-coated alumina prepared using the method 有权

    公开(公告)号：US10163538B2

    公开(公告)日：2018-12-25

    申请号：US14981989

    申请日：2015-12-29

    申请人： Jianhong Liu

    发明人： Jianhong Liu ,  Qianling Zhang ,  Chuanxin He ,  Chuhong Liao

    IPC分类号： H01B1/00 ,  H01B1/02 ,  C09K5/14

    摘要： A method of preparing graphene-coated alumina, the method including: (1) preparing a liquid polyacrylonitrile (LPAN) solution, stirring the LPAN solution at between 100 and 200° C. to yield a cyclized polyacrylonitrile solution; (2) heating the cyclized LPAN solution at between 200 and 300° C. to yield a thermally-oxidized polyacrylonitrile (OPAN) having a ladder structure; (3) mixing the thermally-oxidized polyacrylonitrile with an aluminum compound, to yield a mixture, and adding a solvent to the mixture, uniformly mixing, to yield a polyacrylonitrile-coated aluminum compound; (4) drying the polyacrylonitrile-coated aluminum compound until the solvent is evaporated, to yield a carbonized precursor-coated aluminum compound; and (5) calcining the carbonized precursor-coated aluminum compound in the presence of an inert gas flow, to yield graphene-coated alumina.

    Method of preparing carbon-coated manganous oxide and carbon-coated manganous oxide prepared using the method
    6.
    发明授权
    Method of preparing carbon-coated manganous oxide and carbon-coated manganous oxide prepared using the method 有权
    使用该方法制备碳涂覆的二氧化锰和碳涂覆的二氧化锰的方法

    公开(公告)号：US09458330B2

    公开(公告)日：2016-10-04

    申请号：US14946800

    申请日：2015-11-20

    申请人： Jianhong Liu

    发明人： Jianhong Liu ,  Qianling Zhang ,  Chuanxin He ,  Chuhong Liao

    IPC分类号： C09D5/16 ,  B05D1/18 ,  B05D3/02 ,  B05D3/00

    CPC分类号： C09D5/1618 ,  A01N59/16 ,  B05D1/18 ,  B05D3/007 ,  B05D3/0272 ,  B63B59/04 ,  C08K9/02 ,  C09D5/1612 ,  C09D7/62 ,  A01N25/10

    摘要： A method of preparing carbon-coated manganous oxide, the method including: (1) preparing a liquid polyacrylonitrile (LPAN) solution as a carbon source, stirring the LPAN solution at between 100 and 200° C. to yield a cyclized polyacrylonitrile solution; (2) heating the cyclized LPAN solution at between 200 and 300° C. to yield a thermally-oxidized polyacrylonitrile (OPAN) having a ladder structure; (3) mixing the thermally-oxidized polyacrylonitrile with a manganese compound, to yield a mixture, and adding a solvent to the mixture, uniformly mixing, to yield a polyacrylonitrile coated manganese compound; (4) drying the polyacrylonitrile coated manganese compound until the solvent is evaporated completely and the polyacrylonitrile coated on the manganese compound is crosslinked to form a solid, to yield a carbonized precursor coated manganese compound; and (5) calcining the carbonized precursor coated manganese compound in the presence of an inert gas flow, to yield a carbon-coated manganous oxide.

    摘要翻译： 一种制备碳涂覆的二氧化锰的方法，该方法包括：（1）制备作为碳源的液体聚丙烯腈（LPAN）溶液，在100-200℃下搅拌LPAN溶液，得到环化的聚丙烯腈溶液; （2）在200-300℃之间加热环化的LPAN溶液，得到具有梯形结构的热氧化聚丙烯腈（OPAN）; （3）将热氧化聚丙烯腈与锰化合物混合，得到混合物，向混合物中加入溶剂均匀混合，得到聚丙烯腈包覆的锰化合物; （4）干燥包覆的聚丙烯腈的锰化合物，直到溶剂完全蒸发，涂覆在锰化合物上的聚丙烯腈交联以形成固体，得到碳化前体包被的锰化合物; 和（5）在惰性气流的存在下煅烧碳化前体包覆的锰化合物，得到碳涂覆的二氧化锰。