• 专利标题:   Material used to anode and electrochemical cell comprises titanium dioxide nanoparticles at least partially embedded in a matrix material comprising titanium moiety.
  • 专利号:   US2021066711-A1, CN112447940-A, US11430981-B2
  • 发明人:   LU Y, KONG D, HOU M, LI Z, LIU H
  • 专利权人:   GM GLOBAL TECHNOLOGY OPERATIONS INC, GM GLOBAL TECHNOLOGY OPERATIONS INC
  • 国际专利分类:   H01M010/0525, H01M010/054, H01M004/36, H01M004/48, H01M004/485, H01M004/131, H01M004/02
  • 专利详细信息:   US2021066711-A1 04 Mar 2021 H01M-004/36 202139 English
  • 申请详细信息:   US2021066711-A1 US661332 23 Oct 2019
  • 优先权号:   CN10830860

▎ 摘  要

NOVELTY - Material (50) comprises titanium dioxide nanoparticles (52) at least partially embedded in a matrix material (54) comprising titanium moiety (I). USE - The material is useful for anode, electrochemical cell (all claimed). ADVANTAGE - The material: has low molar ratio may be employed to save cost and a relatively high molar ratio may be employed to maximize energy density; has positive active materials may be intermingled with an electronically conducting material that provides an electron conduction path, electrically conductive materials, and/or at least one polymeric binder material that improves structural integrity of electrode; and can sufficiently undergo lithium/sodium intercalation and deintercalation, or alloying and dealloying, while functioning as positive terminal of batter. DETAILED DESCRIPTION - Material (50) comprises titanium dioxide nanoparticles (52) at least partially embedded in a matrix material (54) comprising titanium moiety is of formula (TixNbyOz) (I). X = greater than 0-2; Y = greater than 0-24; and Z = greater than 0-62. INDEPENDENT CLAIMS are also included for: (a) anode comprising an anode material comprising titanium dioxide nanoparticles at least partially embedded in the matrix material; and (b) producing a material, comprising forming a mixture of starting materials in a ball milling container, the starting materials comprising a precursor material comprising at least one of niobium(V) oxide or (TiaNbbOc), and titanium dioxide particles and ball milling the mixture to form the material, where the material comprises titanium dioxide nanoparticles. a = 0-2; b = greater than 0-24; and c = greater than 0-62. DESCRIPTION OF DRAWING(S) - The figure shows the composite material. Material (50) Titanium dioxide nanoparticles (52) Matrix material (54)