About 17 results
https://drivepatents.com/patents/942124 · 8 Jun 2016
Provided is a transition metal oxide containing solid-solution lithium which can realize high initial discharge capacity and capacity retention rate. The transition metal oxide containing solid-solution lithium is represented by the compositional formula: ...
https://drivepatents.com/patents/979063 · 5 Feb 2014
The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electro...
https://drivepatents.com/patents/990559 · 22 May 2013
Provided is spinel-type lithium transition metal oxide (LMO) used as a positive electrode active material for lithium battery, said LMO being capable of simultaneously achieving all output characteristics (rate characteristics), high temperature cycle life...
https://drivepatents.com/patents/1000248 · 18 Jul 2012
A cathode active material including: a lithium manganese oxide of which primary particles has a diameter of 1µm or more and which has a spinel structure in which an X-ray diffraction (XRD) peak intensity ratio of I(111)/I(311) is 1.0 or more; and a boron ...
https://drivepatents.com/patents/1007066 · 21 Dec 2011
The present invention provides a non-aqueous electrolyte-based high power lithium secondary battery having a long-term service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging...
https://drivepatents.com/patents/1076058 · 13 Jul 2005
A positive plate material for lithium secondary cells stably exhibiting excellent performance including the cell initial capacity, cycle characteristics, and the safety. The material is procuded by dripping an aqueous solution of a salt (e.g., cobalt sulfa...
https://drivepatents.com/patents/1081318 · 29 Dec 2004
Lithium manganese composite oxide granular secondary particles are formed by agglomerating crystalline primary particles of a lithium manganese composite oxide. Open pores of micrometer size are present in the granular secondary particles. The average diam...
https://drivepatents.com/patents/1083081 · 20 Oct 2004
A positive active material is provided which can give a battery having a high energy density and excellent high-rate discharge performance and inhibited from decreasing in battery performance even in the case of high-temperature charge. Also provided is a ...
https://drivepatents.com/patents/1093099 · 24 Sep 2003
A positive active material including a compound expressed by a general formula LiMM'M"O(here, M designates at least one kind of element selected from Co, Ni and Mn, M' designates at least one kind of element selected from Al, Cr, V, Fe, Cu, Zn, Sn, Ti, Mg,...
https://drivepatents.com/patents/1096535 · 23 Apr 2003
A positive electrode active material for a secondary battery contains a spinel lithium manganese composite oxide expressed by a general formula of Li a (M x Mn 2-x-y A y )O 4 where x, y and z are positive values which satisfy 0.4 < x, 0 < y, x+y < 2, and 0...