The present disclosure relates to a positive electrode additive for a lithium secondary battery, a manufacturing method thereof. The positive electrode additive for a lithium secondary battery is represented by Chemical Formula 1 below.
Li.sub.6xCo.sub.1-yM.sub.yO.sub.4[Chemical Formula 1] (In the Chemical Formula 1, 0.9x1.1, 0<y0.1, My=B.sub.aW.sub.b, 0a0.1, 0b0.1, and, a and b are not simultaneously 0.) Another positive electrode additive for a lithium secondary battery includes a core represented by Chemical Formula 2 below; and a coating layer comprising at least one of boron (B) and tungsten (W).
Li.sub.6xCoO.sub.4[Chemical Formula 2] (In the Chemical Formula 2, 0.9x1.1.)

The present disclosure relates to a positive electrode additive for a lithium secondary battery, a manufacturing method thereof. The positive electrode additive for a lithium secondary battery is represented by Chemical Formula 1 below.
Li.sub.6xCo.sub.1-yM.sub.yO.sub.4[Chemical Formula 1] (In the Chemical Formula 1, 0.9x1.1, 0<y0.1, My=B.sub.aW.sub.b, 0a0.1, 0b0.1, and, a and b are not simultaneously 0.) Another positive electrode additive for a lithium secondary battery includes a core represented by Chemical Formula 2 below; and a coating layer comprising at least one of boron (B) and tungsten (W).
Li.sub.6xCoO.sub.4[Chemical Formula 2] (In the Chemical Formula 2, 0.9x1.1.)

Process for making a manganese composite (oxy)hydroxide with a mean particle diameter D50 in the range from 2 to 16 m comprising the step(s) of combining (a) an aqueous solution containing salts of nickel and of manganese, and, optionally, at least one of Al, Mg, or transition metals other than nickel and manganese wherein at least 50 mole-% of the metal is manganese, (b) with an aqueous solution of an alkali metal hydroxide and (c) an organic acid or its alkali or ammonium salt wherein said organic acid bears at least two functional groups per molecule and at least one of the functional groups is a carboxylate group.

Process for making a manganese composite (oxy)hydroxide with a mean particle diameter D50 in the range from 2 to 16 m comprising the step(s) of combining (a) an aqueous solution containing salts of nickel and of manganese, and, optionally, at least one of Al, Mg, or transition metals other than nickel and manganese wherein at least 50 mole-% of the metal is manganese, (b) with an aqueous solution of an alkali metal hydroxide and (c) an organic acid or its alkali or ammonium salt wherein said organic acid bears at least two functional groups per molecule and at least one of the functional groups is a carboxylate group.

Lithium-containing thiostannate spinel compounds having the formula Li.sub.2M.sub.1+xSn.sub.3xS.sub.8, where x is 0 or 1 and M is Mg, Fe, Mn, Ni, Ga, In, or a combination thereof; or the formula Li.sub.1.66CuSn.sub.3.33S.sub.8 are provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (.sup.6Li) to enhance their neutron detecting capabilities.

Improved methods for preparing lithium transition metal oxide particulate such as lithium nickel metal cobalt oxide (NMC) for use in lithium batteries and other applications are disclosed. The lithium transition metal oxide particulate is prepared from appropriate transition metal oxide and Li compound precursors mainly using dry, solid state processes including dry impact milling and heating. Further, novel precursor particulates and novel methods for preparing precursor particles for this and other applications are disclosed.

Improved methods for preparing lithium transition metal oxide particulate such as lithium nickel metal cobalt oxide (NMC) for use in lithium batteries and other applications are disclosed. The lithium transition metal oxide particulate is prepared from appropriate transition metal oxide and Li compound precursors mainly using dry, solid state processes including dry impact milling and heating. Further, novel precursor particulates and novel methods for preparing precursor particles for this and other applications are disclosed.

Acidified metal oxides combined with non-acidified metal oxides used as a battery electrode active material.

Acidified metal oxides combined with non-acidified metal oxides used as a battery electrode active material.

Simple, material-efficient microgranulation methods are disclosed for aggregating precursor particles into larger product particles with improved properties and, in some instances, novel structures. The product particles are useful in applications requiring uniform, smooth, spherical, or rounded particles such as for electrode materials in lithium batteries and other applications.