GUIQING HUANG
Broker in Newton, MA
License number
Massachusetts 9057733
Issued Date
Aug 14, 2003
Expiration Date
Feb 5, 2008
Type
Salesperson
Address
Address
Newton, MA 02465
Professional information
Methods Of Making Low Cost Electrode Active Composite Materials For Secondary Electrochemical Batteries
US Patent:
2014005, Feb 27, 2014
Filed:
Aug 20, 2013
Appl. No.:
13/971252
Inventors:
Guiqing Huang - Newton MA, US
Boshan Mo - Newton MA, US
Youde Mo - Newton MA, US
Boshan Mo - Newton MA, US
Youde Mo - Newton MA, US
International Classification:
C01B 25/45
US Classification:
2521821
Abstract:
In one aspect, a method of synthesizing a phosphorous active electrode composite material AMPOis disclosed. M is a first element selected from a group of transitional metals, such as iron (Fe), manganese (Mn), and others, and A is a second element selected from a group consisting of lithium (Li), sodium (Na), potassium (K) and a mixture thereof. The method includes: forming a phosphate composite from a phosphorus source material and a first source material comprising the first element M; mixing the phosphate composite with a second source material comprising the second element A to form an intermediate mixture with A:M:P=1.03-1.1:1:1 by molar ratio; ball-milling and drying the intermediate mixture; and sintering the intermediate mixture to form the phosphorous composite active electrode material. The first source material and the metalloid source material are low cost by-products respectively obtained in other processes.
Electrochemically Active Materials And Precursors Thereto
US Patent:
2011011, May 19, 2011
Filed:
Nov 16, 2010
Appl. No.:
12/946905
Inventors:
Guiqing Huang - Newton MA, US
International Classification:
H01M 4/90, B82Y 30/00
US Classification:
2521821, 977775
Abstract:
The invention provides unique methods and compositions useful for preparing high-quality, nano-scale powdery precursor materials that are efficiently converted to electrochemically active materials, for example those useful in rechargeable lithium-ion batteries as electrode materials and various applications.
High Performance Cathode Material Lifepo4, Its Precursors And Methods Of Making Thereof
US Patent:
2012005, Mar 8, 2012
Filed:
Feb 28, 2011
Appl. No.:
13/036566
Inventors:
Guiqing Huang - Newton MA, US
International Classification:
C01B 25/45, B82Y 30/00, B82Y 40/00
US Classification:
423306, 977948
Abstract:
In one aspect of the invention, methods of synthesizing iron phosphate precursors and lithium iron phosphate active material usable for a lithium secondary battery include the steps of first forming fine particle iron phosphate precursors hydrated and anhydrous, then forming electrode active material lithium iron phosphate with said iron phosphate precursors. The unique methods are generally efficient and cost effective, as well as stable and scalable for a high performance electrode active material with high capacity, good discharge profile, high electronic conductivity, as well as long cycle life.