About 33 results
https://drivepatents.com/patents/976402 · 9 Apr 2014
The present invention aims at providing a transition metal composite hydroxide, the use of which as a precursor allows a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. Provided is a method for p...
https://drivepatents.com/patents/977753 · 5 Mar 2014
Provided is a method for increasing the rate of recovery of valuable metals when waste batteries batteries are treated by a dry process. The valuable metal recovery method in the dry step S20 includes a melting step ST21 including melting waste batteries t...
https://drivepatents.com/patents/979403 · 22 Jan 2014
A method for recovering valuable metals is provided in which the degree of oxidation of molten waste batteries is stabilized and separation between slag and an alloy is ensured. The method includes a roasting step (ST10) in which waste batteries are roaste...
https://drivepatents.com/patents/979408 · 22 Jan 2014
Provided is a method in which, when discarded batteries such as lithium-ion batteries are treated by a dry process, slag having a reduced viscosity is obtained to heighten the recovery of valuable metals. The method for recovering valuable metals includes ...
https://drivepatents.com/patents/980597 · 25 Dec 2013
Provided is a method for stabilizing the degree of oxidation of molten battery waste, and definitively separating slag and alloy. The method is provided with a pre-oxidation step (ST20) for roasting and oxidizing battery waste; and a drying step (S20) for ...
https://drivepatents.com/patents/980510 · 25 Dec 2013
Provided is a method for improving the recovery rate of valuable metals such as cobalt when drying the battery waste of lithium ion batteries and the like. A second alloy excellent in terms of iron-cobalt separation performance and containing a small amoun...
https://drivepatents.com/patents/981341 · 4 Dec 2013
The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In ...
https://drivepatents.com/patents/983179 · 23 Oct 2013
Provided are nickel manganese composite hydroxide particles having a small and uniform particle size and having a double structure which enables to obtain a cathode active material having a hollow structure, and a manufacturing method thereof. When obtaini...
https://drivepatents.com/patents/983067 · 23 Oct 2013
The present invention aims at improving a recovery rate of a positive-pole active substance and preventing a recovery loss of valuable metals when a positive-pole active substance is separated from a lithium ion battery. In the present invention, a materia...
https://drivepatents.com/patents/987803 · 7 Aug 2013
The present invention aims to provide a positive electrode active material for nonaqueous electrolyte secondary batteries which achieves high output and high capacity when used as a positive electrode material. Disclosed is a method for manufacturing the p...