Retired new energy battery valley bottom energy storage

Will retired traction batteries be able to meet China's energy demand?

Under the Chinese Carbon Peak Vision, by 2030, the capacity potential of retired traction batteries (318 GWh) will be able to meet the national energy storage demand for wind and solar energy; by 2050, the capacity potential will further septuple compared to 2030.

Will RTBs meet the national energy storage demand by 2050?

With the anticipated rapid spread of EVs under the Chinese Carbon Peak Vision, by 2030, the capacity potential of RTBs (318 GWh) will be able to meet the national energy storage demand. Then the capacity potential by 2050 will further septuple compared to 2030.

Should traction batteries be retired?

An explosive growth in the retirement of traction batteries is expected in the near future due to the soaring use of electric vehicles, what makes it a challenge to sustainably manage RTBs and subsequent waste batteries.

How are RTB batteries remanufactured?

Ideally, collected RTBs are subjected to a series of remanufacturing processes, including disassembly, inspection, and repairing; qualified batteries are used for energy storage until their capacities decline to 40–60% (AMR Of Anhui, 2019; Ahmadi et al., 2017).

Do RTBs meet the demand for energy storage?

Nationally, however, the capacity of RTBs fails to approach the demand for energy storage, with potential equivalent to only 2.5% of total demand. Among provinces where potential fails to meet demand, Shanghai and Tianjin have the highest ratios of 0.91 and 0.20, respectively.

How long does a battery last in a cascade?

A lifespan of 5 years was proposed for the cascade use stage of these retired batteries, taking the decay ratios of LFP and NCM batteries as a reference. During the cascade use stage, the capacity for energy storage decreases as battery capacity continues to decay.