Cradle to Gate
Identity ID
3686e3e9-e175-49e9-b924-a89b433137d9
Waste treatment
Associated ID
cf974683-d8a4-4bdd-a0c5-2955977cf5fa
Included activities starts
Included activities ends
Description
This dataset addresses the discharge and dismantling process of spent lithium iron phosphate batteries, covering the main raw and auxiliary materials (spent lithium iron phosphate batteries, nitrogen, liquid caustic soda, etc.), energy (electricity, natural gas, tap water), and pollutant emissions (waste gas, solid waste) of the treatment process. Infrastructure such as the manufacturing of production equipment and the construction of plants is not included within the dataset boundary. The data inventory is compiled from the actual production data of enterprises. The treatment activities include spent battery receiving, discharging, crushing, pyrolysis, sorting, waste gas treatment, solid waste disposal, and other process steps.
Activity Description
The waste battery treatment activities include the reception, discharge treatment, crushing, pyrolysis, sorting, waste gas treatment, and temporary storage of solid waste. The received waste batteries are first discharged to ensure safety, and then enter the crushing equipment for crushing. After crushing, the materials are sorted and separated into copper foil, aluminum foil, and outer shells. The remaining materials are further processed by pyrolysis to obtain positive and negative electrode powders; the waste gas generated is treated by spraying and other processes, and the solid waste is temporarily stored and disposed of according to the classification of general industrial solid waste or hazardous waste.
Process Description
Retired lithium iron phosphate batteries primarily consist of lithium iron phosphate cathode material, copper foil, aluminum foil, and casing; the discharging and dismantling process requires discharging the waste batteries first, and then separating cathode and anode powder, copper foil, aluminum foil, and other products through steps such as crushing, sorting, and pyrolysis; auxiliary materials used include nitrogen (inert gas to prevent material oxidation), 32% sodium hydroxide solution (caustic soda for waste gas treatment), and 92% calcium oxide (to adjust system properties); the process consumes energy such as electricity and natural gas and generates pollutants including waste gas and solid waste.
Time period
2023
2026
Geography
China
Geography comment
Extrapolated from Jiangsu Province data
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The waste lithium iron phosphate battery is first discharged, and then sent to the crushing equipment for crushing; the crushed products enter the sorting system, and the copper foil, aluminum foil and outer casing are separated through physical sorting; the remaining materials are sent to the pyrolysis device, pyrolyzed at a specific temperature, and the positive and negative electrode powders are obtained after pyrolysis; nitrogen is introduced as a protective gas during the treatment process to prevent the oxidation of the materials during the crushing and pyrolysis process.