Cradle to Gate
Identity ID
cde96669-3600-4bce-868a-ba994c19e327
Materials
Associated ID
af89b041-b359-4e78-942e-8932b956fa00
Included activities starts
Included activities ends
Description
Lithium iron phosphate is widely used as a cathode material for lithium-ion batteries, with the characteristics of high safety and long cycle life; the dataset contains the main raw and auxiliary materials and energy of the production process; due to data availability, atmospheric emissions, wastewater and solid waste are not included, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include iron nitrate reaction, precursor preparation, crushing, drying, sucrose (carbon coating), sintering, drying and crushing.
Activity Description
The production activities of this product include ferric nitrate reaction, precursor preparation, crushing, drying, sucrose (carbon coating), sintering, drying, crushing and other processes.
Process Description
Lithium iron phosphate (chemical formula LiFePO4, CAS number 15365-14-7) is a gray to black crystal powder with an olivine crystal structure. It has high thermal and chemical stability, and its surface is coated with carbon to improve electronic conductivity. Lithium iron phosphate is widely used as a cathode material for lithium-ion batteries, offering high safety and long cycle life.
Time period
2023
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Pure iron reacts with nitric acid in the nitric acid dissolution system to generate iron nitrate and nitric oxide. Lithium carbonate and nitric acid react in the batching tank to generate lithium nitrate. Iron nitrate, lithium nitrate, ammonium dihydrogen phosphate, etc. react in the feeder to generate lithium iron phosphate. The incompletely reacted materials enter the fluidized bed dryer to continue the reaction. The lithium iron phosphate generated in the roller kiln decomposes and denitrifies. The generated hydrogen is burned in the outlet reactor. At the same time, sucrose coats the surface of lithium iron phosphate with carbon to improve its performance. The core reaction chemical equation of this process is: 4Fe(NO3)3+4NH4H2PO4+4LiNO3→4LiFePO4·NH3+6H2O+16NO2+5O2; 2LiFePO4·NH3→2LiFePO4+3H2+N2.