Disadvantages of using second-life batteries for energy storage

Are second-life batteries a viable alternative to stationary batteries?

This story is contributed by Josh Lehman, Relyion Energy Second-life batteries present an immediate opportunity, the viability of which will be proven or disproven in the next few years. Second-life batteries can considerably reduce the cost as well as the environmental impact of stationary battery energy storage.

What are the challenges to a second-life EV battery deployment?

Major challenges to second-life deployment include streamlining the battery repurposing process and ensuring long-term battery performance. By 2030, the world could retire 200–300 gigawatt-hours of EV batteries each year. A large fraction of these batteries will have 70% or more of their original energy capacity remaining.

Will second-life batteries fail?

Second-life batteries will either fail or experience exponential growth over the next 3–5 years. Retired batteries are available in increasing quantities, and there is clear demand for low-cost, stationary energy storage. Companies seeking to take advantage of the opportunity must act now, or risk missing the boat.

Are second-life batteries good for the environment?

The researchers highlight the environmental benefits of using second-life batteries in terms of recovering surplus renewable energy, supporting the grid with services such as frequency regulation and demand response, and extending battery lifetime.

Can a second-life battery be used as a battery management system?

According to the Argonne National Laboratory, second-life batteries encounter challenges related to the Battery Management System (BMS). The BMS utilized in the LIB automotive application may not be suitable for its second-life use. Each application demands a specifically engineered BMS to monitor and control the LIB modules for their new purpose.

What are the disadvantages of using Li-ion batteries for energy storage?

However, the disadvantages of using li-ion batteries for energy storage are multiple and quite well documented. The performance of li-ion cells degrades over time, limiting their storage capability.