CAS: 12031-82-2; Lithium Titanate

专利信息

专利号:US-8389160-B2
优先权日:2008-10-07
标题:Positive electrode materials for lithium ion batteries having a high specific discharge capacity and processes for the synthesis of these materials
发明人：VENKATACHALAM SUBRAMANIAN; LOPEZ HERMAN; KUMAR SUJEET
权利人:VENKATACHALAM SUBRAMANIAN; LOPEZ HERMAN; KUMAR SUJEET; ENVIA SYSTEMS INC
摘要:Positive electrode active materials are described that have a very high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li 1+x Ni α Mn β CO γ O 2 , where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β ranges from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the cell. Methods for producing these materials include, for example, a co-precipitation approach involving metal hydroxides and sol-gel approaches.

专利号:US-10020491-B2
优先权日:2013-04-16
标题:Silicon-based active materials for lithium ion batteries and synthesis with solution processing
发明人：HAN YONGBONG; MASARAPU CHARAN; DENG HAIXIA; ANGUCHAMY YOGESH KUMAR; VENKATACHALAM SUBRAMANIAN; LOPEZ HERMAN A
权利人:ENVIA SYSTEMS INC; ZENLABS ENERGY INC
摘要:Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.

专利号:US-2007003694-A1
优先权日:2005-05-23
标题 :In-flight modification of inorganic particles within a reaction product flow
发明人：CHIRUVOLU SHIVKUMAR; DU HUI; MCGOVERN WILLIAM E; MOSSO RONALD J; KAMBE NOBUYUKI
权利人:CHIRUVOLU SHIVKUMAR; DU HUI; MCGOVERN WILLIAM E; MOSSO RONALD J; KAMBE NOBUYUKI
摘要:Methods involve in-flight processing of inorganic particles synthesized within the flow. Thus, the flow extends from an inlet connected to a reactant delivery system with inorganic particle precursors to a collector. The as formed inorganic particle can be modified with radiation and/or the application of a coating composition. Additional processing steps can be introduced as desired. Suitable apparatuses for in-flight processing can be based on addition of processing elements onto an inorganic synthesis reactor, such as a laser pyrolysis reactor.

专利号:US-2023163351-A1
优先权日:2021-11-25
标题:Large-scale synthesis of powders of solid-state electrolyte material particles for solid-state batteries, systems and methods thereof

专利号:US-9843041-B2
优先权日:2009-11-11
标题:Coated positive electrode materials for lithium ion batteries
发明人：LOPEZ HERMAN A; VENKATACHALAM SUBRAMANIAN; KARTHIKEYAN DEEPAK KUMAAR KANDASAMY; AMIRUDDIN SHABAB; KUMAR SUJEET
权利人:LOPEZ HERMAN A; VENKATACHALAM SUBRAMANIAN; KARTHIKEYAN DEEPAK KUMAAR KANDASAMY; AMIRUDDIN SHABAB; KUMAR SUJEET; ZENLABS ENERGY INC
摘要:High specific capacity lithium rich lithium metal oxide materials are coated with inorganic compositions, such as metal fluorides, to improve the performance of the materials as a positive electrode active material. The resulting coated material can exhibit an increased specific capacity, and the material can also exhibit improved cycling. The materials can be formed while maintaining a desired relatively high average voltage such that the materials are suitable for the formation of commercial batteries. Suitable processes are described for the synthesis of the desired coated compositions that can be adapted for commercial production.

专利号:US-2009095128-A1
优先权日:2007-09-21
标 题 :Uniform aerosol delivery for flow-based pyrolysis for inorganic material synthesis
发明人：FREY BERNARD M; BUERKI PETER R; LYNCH ROBERT B; WANG JANET L; TRAN GABRIEL; HORNE CRAIG R; HOLUNGA DEAN M; ALTMAN IGOR
权利人:FREY BERNARD M; BUERKI PETER R; LYNCH ROBERT B; WANG JANET L; TRAN GABRIEL; HORNE CRAIG R; HOLUNGA DEAN M; ALTMAN IGOR
摘要:Light-driven flow reactors are configured with an aerosol delivery apparatus that is designed to improve the reactive process with respect to forming uniform product compositions at higher rates. In particular, the reactant delivery system can deliver an aerosol having an average droplet size of no more than about 50 microns, and in some embodiments 20 microns, and with less than 1 droplet in 10,000 having a diameter greater than 5 times the average droplet size. In some embodiments, the edge of the aerosol generator can be placed within about 6 centimeters of the edge of the light beam passing through the reaction chamber. The average aerosol velocity can be no more than about 5 meters per second. In some embodiments, the aerosol generator can comprise a non-circular opening and a gas permeable structure that is used to generate a mist that is delivered from the apparatus as an aerosol.