会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • Process For Preparing Alloy Composite Negative Electrode Material for Lithium Ion Batteries
    • 锂离子电池合金复合负极材料的制备工艺
    • US20120080642A1
    • 2012-04-05
    • US13254228
    • 2010-02-16
    • Jianguo RenXiangming HeLi WangRunbao YanWeihua PuJianjun LiJian Gao
    • Jianguo RenXiangming HeLi WangRunbao YanWeihua PuJianjun LiJian Gao
    • H01M4/04H01M4/38B82B3/00
    • H01M4/38H01M4/42H01M4/46H01M4/583H01M4/587H01M4/625H01M2004/027
    • The present invention relates to a process for preparing an alloy composite negative electrode material having a spherical carbon matrix structure for lithium ion batteries by spray-drying carbothermal reduction. The invention covers a process for preparing a negative electrode material for a lithium ion battery with a general formula A-M/Carbon, wherein A is a metal selected from the group consisting of Si, Sn, Sb, Ge and Al; and wherein M is different from A and is at least one element selected from the group consisting of B, Cr, Nb, Cu, Zr, Ag, Ni, Zn, Fe, Co, Mn, Sb, Zn, Ca, Mg, V, Ti, In, Al, Ge; and comprising the steps of: —providing a solution comprising an organic polymer and either chemically reducible nanometric A- and M-precursor compounds, or nanometric Si and a chemically reducible M-precursor compound, when said metal A is Si; —spray-drying said solution whereby a A- and M-precursor bearing polymer powder is obtained, and—calcining said powder in a neutral atmosphere at a temperature between 500 and 1000° C. for 3 to 10 hours whereby, in this carbothermal reduction, a carbon matrix is obtained bearing homogeneously distributed A-M alloy particles.
    • 本发明涉及通过喷雾干燥碳热还原制备具有锂离子电池的球形碳基质结构的合金复合负极材料的方法。 本发明涉及一种制备具有通式A-M /碳的锂离子电池用负极材料的方法,其中A为选自Si,Sn,Sb,Ge和Al的金属; 其中M与A不同,为选自B,Cr,Nb,Cu,Zr,Ag,Ni,Zn,Fe,Co,Mn,Sb,Zn,Ca,Mg,V中的至少一种元素 ,Ti,In,Al,Ge; 并且包括以下步骤:当所述金属A为Si时,提供包含有机聚合物和化学还原性纳米A和M前体化合物或纳米Si和化学还原性M前体化合物的溶液; 喷雾干燥所述溶液,由此获得具有A和M前体的聚合物粉末,并且在中性气氛中在500-1000℃的温度下煅烧所述粉末3至10小时,由此在该碳热还原 得到带有均匀分布的AM合金颗粒的碳基体。