Nano-silicon composite lithium ion battery anode material coated with poly (3,4-ethylenedioxythiophene) as carbon source and preparation method thereof
    1.
    发明授权
    Nano-silicon composite lithium ion battery anode material coated with poly (3,4-ethylenedioxythiophene) as carbon source and preparation method thereof 有权
    以聚(3,4-亚乙二氧基噻吩)为碳源涂覆的纳米硅复合锂离子电池负极材料及其制备方法

    公开(公告)号:US09437870B2

    公开(公告)日:2016-09-06

    申请号:US14131385

    申请日:2011-08-26

    摘要: A high-performance new silicon composite material for a negative electrode of a lithium ion battery and a preparation method thereof by utilizes a conductive polymer PEDOT and a water solution dispersant PSS as a coating layer of nano-Si powder and a carbon source. The Si/C composite material taking a Si-containing type lithium storage material as a main active substance is prepared by firstly polymerizing PEDOT: PSS on the surface of Si through in-situ polymerization reaction and then performing high-temperature carbonization treatment on a prepared Si/PEDOT: PSS composite under an inert atmosphere. The prepared composite material is doped with a small amount of S element. Nano-Si particles are uniformly embedded in a PEDOT: PSS polymer and a carbon matrix. A high yield is achieved by using cheap raw materials and a simple and environment-friendly process. The prepared Si/C composite material has very low initial irreversible capacity loss (2.8%) and excellent charge-discharge.

    摘要翻译: 一种用于锂离子电池负极的高性能新型硅复合材料及其制备方法,其通过使用导电聚合物PEDOT和水溶液分散剂PSS作为纳米Si粉末和碳源的涂层。 采用含Si型锂储存材料作为主要活性物质的Si / C复合材料通过首先通过原位聚合反应在Si表面上聚合PEDOT:PSS,然后对制备的Si-C复合材料进行高温碳化处理 Si / PEDOT:PSS复合材料在惰性气氛下。 所制备的复合材料掺杂有少量的S元素。 纳米Si颗粒均匀地嵌入PEDOT:PSS聚合物和碳基质中。 通过使用便宜的原材料和简单和环保的工艺实现了高产量。 制备的Si / C复合材料具有非常低的初始不可逆容量损失(2.8%)和优异的充放电特性。

    NANO-SILICON COMPOSITE LITHIUM ION BATTERY ANODE MATERIAL COATED WITH POLY (3,4-ETHYLENEDIOXYTHIOPHENE) AS CARBON SOURCE AND PREPARATION METHOD THEREOF
    2.
    发明申请
    NANO-SILICON COMPOSITE LITHIUM ION BATTERY ANODE MATERIAL COATED WITH POLY (3,4-ETHYLENEDIOXYTHIOPHENE) AS CARBON SOURCE AND PREPARATION METHOD THEREOF 有权
    纳米硅复合锂离子电池阳极材料,以聚(3,4-乙烯二氧基苯乙烯)为碳源及其制备方法

    公开(公告)号:US20140113199A1

    公开(公告)日:2014-04-24

    申请号:US14131385

    申请日:2011-08-26

    IPC分类号: H01M4/36

    摘要: A high-performance new silicon composite material for a negative electrode of a lithium ion battery and a preparation method thereof by utilizes a conductive polymer PEDOT and a water solution dispersant PSS as a coating layer of nano-Si powder and a carbon source. The Si/C composite material taking a Si-containing type lithium storage material as a main active substance is prepared by firstly polymerizing PEDOT: PSS on the surface of Si through in-situ polymerization reaction and then performing high-temperature carbonization treatment on a prepared Si/PEDOT: PSS composite under an inert atmosphere. The prepared composite material is doped with a small amount of S element. Nano-Si particles are uniformly embedded in a PEDOT: PSS polymer and a carbon matrix. A high yield is achieved by using cheap raw materials and a simple and environment-friendly process. The prepared Si/C composite material has very low initial irreversible capacity loss (2.8%) and excellent charge-discharge.

    摘要翻译: 一种用于锂离子电池负极的高性能新型硅复合材料及其制备方法,其通过使用导电聚合物PEDOT和水溶液分散剂PSS作为纳米Si粉末和碳源的涂层。 采用含Si型锂储存材料作为主要活性物质的Si / C复合材料通过首先通过原位聚合反应在Si表面上聚合PEDOT:PSS,然后对制备的Si-C复合材料进行高温碳化处理 Si / PEDOT:PSS复合材料在惰性气氛下。 所制备的复合材料掺杂有少量的S元素。 纳米Si颗粒均匀地嵌入PEDOT:PSS聚合物和碳基质中。 通过使用便宜的原材料和简单和环保的工艺实现了高产量。 制备的Si / C复合材料具有非常低的初始不可逆容量损失(2.8%)和优异的充放电特性。

    ORGANOSILICON AMINE ELECTROLYTE MATERIALS CONTAINING POLYETHER CHAIN AND APPLICATION THEREOF IN ELECTROLYTES OF LITHIUM-ION BATTERIES
    3.
    发明申请
    ORGANOSILICON AMINE ELECTROLYTE MATERIALS CONTAINING POLYETHER CHAIN AND APPLICATION THEREOF IN ELECTROLYTES OF LITHIUM-ION BATTERIES 有权
    含有聚烯烃的有机硅电解质材料及其在锂离子电池电解液中的应用

    公开(公告)号:US20130084490A1

    公开(公告)日:2013-04-04

    申请号:US13702576

    申请日:2011-03-10

    IPC分类号: C07F7/18 H01M10/056 C07F7/10

    摘要: The invention provides an organosilicon amine electrolyte material containing a polyether chain, which has a wide range of applications, as well as an application of the electrolyte material in a lithium ion battery. The chemical structure thereof is as shown in Formula 1, wherein R1 and R2 are selected from the same or different C1-C10 alkyls; A is a polyether chain segment having the structure of (CH2)nO[(CH2)mO]x(CH2)y, where n and m are integers from 0 to 10, and x is an integer from 1 to 10; R3, R4 and R5 are selected from the same or the different C1-C10 alkyls or alkoxyl groups, or are equivalent to ANR1R2 or —O—SiR6R7R8 in structure; wherein R6, R7 and R8 are C1-C10 alkyls.

    摘要翻译: 本发明提供一种含有聚醚链的有机硅胺电解质材料,其具有广泛的应用范围,以及在锂离子电池中应用电解质材料。 其化学结构如式1所示,其中R 1和R 2选自相同或不同的C 1 -C 10烷基; A是具有(CH 2)n O [(CH 2)m O] x(CH 2)y结构的聚醚链段,其中n和m是0至10的整数,x是1至10的整数; R3,R4和R5选自相同或不同的C1-C10烷基或烷氧基,或相当于结构中的ANR1R2或-O-SiR6R7R8; 其中R6,R7和R8是C1-C10烷基。