Patent application number | Description | Published |
20080305256 | Method for producing lithium vanadium polyanion powders for batteries - This invention relates to a process for producing an improved cathode powder for making lithium ion batteries wherein the powder comprises lithium, vanadium and a polyanion. The process includes forming a solution-suspension of the precursors, which include vanadium pentoxide, with a reducing agent, a solvent, and a carbon-residue-forming material. The reducing agent causes the vanadium in vanadium pentoxide to reduce from V5+ to V3+. The solution-suspension is heated in an inert environment to drive the synthesis of the LVP (Li | 12-11-2008 |
20090017194 | Process of Making Carbon-Coated Lithium Metal Polyanionic Powders - The present invention provides a process for making a battery cathode material with improved properties in lithium ion batteries. In one embodiment, the process comprises synthesizing a lithium metal polyanionic (LMP) powder. The process further comprises precipitating a carbonaceous coating on to the LMP powder to form a coated LMP powder. Additionally, the process comprises stabilizing and then carbonizing the coated LMP powder to produce the battery cathode material. The charge capacity, coulombic efficiency, and cycle life of the battery cathode material is better than those of the uncoated LMP powder. | 01-15-2009 |
20090242830 | ANODE POWDERS FOR BATTERIES - Methods and compositions relate to anode powders for use in batteries. The powders may provide limited surface area per volume of powder material. Further, the powders may include limited amounts of particles below a threshold size within a particle size distribution. Some embodiments utilize regular or anode grade petroleum coke as a precursor. | 10-01-2009 |
20100154206 | PROCESS FOR MAKING COMPOSITE LITHIUM POWDERS FOR BATTERIES - This invention relates to lithium-ion batteries and cathode powders for making lithium-ion batteries where the cathode powder comprises a blend or mixture of at least one lithium transition metal poly-anion and with one or more lithium transition-metal oxide powders. A number of different lithium transition-metal oxides are suitable, especially formulations that include nickel, manganese and cobalt. The preferred lithium transition metal poly-anion is carbon-containing lithium vanadium phosphate. Batteries using the mixture or blend of these powders have been found to have high specific capacity, especially based on volume, high cycle life, substantially improved safety issues as compared to lithium transition-metal oxides, per se, and an attractive electrode potential profile. | 06-24-2010 |
20100183801 | PRODUCING COATED GRAPHITIC ANODE POWDERS BY EXTRACTING PITCH FROM HIGH VOLATILE MATTER COKE AND COATING THE SAME IN-SITU - This invention relates to a process for making carbon coated graphitic anode powders for use in batteries including rechargeable lithium-ion batteries wherein the process includes a side product isotropic pitch for use as a precursor in other products and more preferably, as a coating material for other powder or particle products. The process includes the steps of solvent extraction of volatile materials from high volatile material green coke powder. When a desirable amount of the volatile materials have been extracted, the solvent strength is altered to cause some of the volatile materials to precipitate on the powder particles to coat the same. The coated and solvent-extracted particles are then separated from the solvent and oxidatively stabilized, then carbonized and preferably graphitized. The volatile materials remaining in the solvent are valuable and are recovered for use in other processes and other products. | 07-22-2010 |
Patent application number | Description | Published |
20100010815 | FACILITATING TEXT-TO-SPEECH CONVERSION OF A DOMAIN NAME OR A NETWORK ADDRESS CONTAINING A DOMAIN NAME - To facilitate text-to-speech conversion of a username, a first or last name of a user associated with the username may be retrieved, and a pronunciation of the username may be determined based at least in part on whether the name forms at least part of the username. To facilitate text-to-speech conversion of a domain name having a top level domain and at least one other level domain, a pronunciation for the top level domain may be determined based at least in part upon whether the top level domain is one of a predetermined set of top level domains. Each other level domain may be searched for one or more recognized words therewithin, and a pronunciation of the other level domain may be determined based at least in part on an outcome of the search. The username and domain name may form part of a network address such as an email address, URL or URI. | 01-14-2010 |
20100010816 | FACILITATING TEXT-TO-SPEECH CONVERSION OF A USERNAME OR A NETWORK ADDRESS CONTAINING A USERNAME - To facilitate text-to-speech conversion of a username, a first or last name of a user associated with the username may be retrieved, and a pronunciation of the username may be determined based at least in part on whether the name forms at least part of the username. To facilitate text-to-speech conversion of a domain name having a top level domain and at least one other level domain, a pronunciation for the top level domain may be determined based at least in part upon whether the top level domain is one of a predetermined set of top level domains. Each other level domain may be searched for one or more recognized words therewithin, and a pronunciation of the other level domain may be determined based at least in part on an outcome of the search. The username and domain name may form part of a network address such as an email address, URL or URI. | 01-14-2010 |
20120158406 | FACILITATING TEXT-TO-SPEECH CONVERSION OF A USERNAME OR A NETWORK ADDRESS CONTAINING A USERNAME - To facilitate text-to-speech conversion of a username, a first or last name of a user associated with the username may be retrieved, and a pronunciation of the username may be determined based at least in part on whether the name forms at least part of the username. To facilitate text-to-speech conversion of a domain name having a top level domain and at least one other level domain, a pronunciation for the top level domain may be determined based at least in part upon whether the top level domain is one of a predetermined set of top level domains. Each other level domain may be searched for one or more recognized words therewithin, and a pronunciation of the other level domain may be determined based at least in part on an outcome of the search. The username and domain name may form part of a network address such as an email address, URL or URI. | 06-21-2012 |
20130110512 | FACILITATING TEXT-TO-SPEECH CONVERSION OF A DOMAIN NAME OR A NETWORK ADDRESS CONTAINING A DOMAIN NAME | 05-02-2013 |