BORON CONTAINING LITHIUM INTERCALATION COMPOUNDS FOR USE AS ACTIVE MATERIALS FOR ELECTRODES, STORAGE MEDIA AND ELECTROCHROMICAL DEVICES

摘要

Boron-doped lithium insertion compounds (I) are new. Boron-doped lithium insertion compounds of formula (I) are new: LiaMbM1vM2wM3xM4yM5zBc(XO4-eZe) (I) M = divalent V, Mn, Fe, Co or Ni; M1 = Na or K; M2 = divalent Mg, Zn, Cu, Ti or Ca; M3 = trivalent Al, Ti, Cr, Fe, Mn, Ga or V; M4 = tetravalent Ti, Ge, Sn, V or Zr; M5 = pentavalent V, Nb or Ta; X = B3+, Al3+, V5+, Si4+, P5+, S6+ and/or Ge4+; Z = F, Cl, Br or I; a = 0-2; b = 1-2; c = a number greater than zero; e = 0-2; a + 2b + 3c + v + 2w + 3x + 4y + 5z + m = 8-e; c/(b+v+w+x+y+z) = 0-0.1 but not zero. Independent claims are also included for: (1) a process for preparing (I); (2) active electrode material comprising one or more compounds (I) and optionally one or more other active compounds, e.g. lithium cobaltate, lithium nickelate, lithium manganese spinel, olivine isotype compounds, Nasicon compounds and lithium orthosilicate insertion compounds; (3) positive electrode comprising the active electrode material; (4) accumulator comprising the positive electrode; and (5) electrochromic device comprising (I).