- 专利标题: Nanoporous titanium niobium oxide and titanium tantalum oxide compositions and their use in anodes of lithium ion batteries
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申请号: US13974544申请日: 2013-08-23
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公开(公告)号: US09806338B2公开(公告)日: 2017-10-31
- 发明人: Sheng Dai , Bingkun Guo , Xiao-Guang Sun , Zhenan Qiao
- 申请人: UT-Battelle, LLC
- 申请人地址: US TN Oak Ridge
- 专利权人: UT-BATTELE, LLC
- 当前专利权人: UT-BATTELE, LLC
- 当前专利权人地址: US TN Oak Ridge
- 代理机构: Scully Scott Murphy & Presser
- 主分类号: H01M4/485
- IPC分类号: H01M4/485 ; C01G35/00 ; C01G33/00 ; H01M10/0525
摘要:
Nanoporous metal oxide framework compositions useful as anodic materials in a lithium ion battery, the composition comprising metal oxide nanocrystals interconnected in a nanoporous framework and having interconnected channels, wherein the metal in said metal oxide comprises titanium and at least one metal selected from niobium and tantalum, e.g., TiNb2-x TaxOy (wherein x is a value from 0 to 2, and y is a value from 7 to 10) and Ti2Nb10-vTavOw (wherein v is a value from 0 to 2, and w is a value from 27 to 29). A novel sol gel method is also described in which sol gel reactive precursors are combined with a templating agent under sol gel reaction conditions to produce a hybrid precursor, and the precursor calcined to form the anodic composition. The invention is also directed to lithium ion batteries in which the nanoporous framework material is incorporated in an anode of the battery.
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