Page 37 - PEN eBook July 2023
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Smart Energy
of recharging processes and appropriate packaging. At present, Li-ion technology is considered
the optimal choice for achieving a combination of capacity, recharging flexibility and durability.
Despite the considerable buzz around all-solid-state batteries, the development of such batteries
has yet to progress sufficiently to establish them as the primary source for producing EV batteries.
These batteries aim to replace the liquid electrolyte of traditional Li-ion batteries with a solid-
state material, which may take the form of polymers or inorganic powders, such as ceramics.
The liquid electrolyte in Li-ion batteries can penetrate both the cathode and anode. High
temperatures can accelerate the chemical degradation of the electrolyte, and organic solvents’
flammability can lead to system malfunctions and fires. Conversely, all-solid-state batteries are
non-volatile and are expected to remain stable and safe at high temperatures.
EV makers like Nissan are focusing on the development of solid-state batteries. The company has
already started developing a prototype at the Nissan Research Center in Kanagawa Prefecture,
and the process is one year in progress. Nissan has also revealed that it will manufacture the
first batch of its solid-state batteries, which are free of liquid electrolytes, in 2025, with plans to
launch mass production by 2028.
References
▶ 1Cleveland, T., & Dearborn, S. (2018). “Developing Affordable Mixed-Signal
Power Systems for Battery Charger Applications.” Microchip Technology Inc.
▶ 2QuantumScape. (Dec. 20, 2022). “QuantumScape Ships First 24-Layer
Prototype Battery Cells to Automotive OEMs.” Press release.
▶ 3Nissan Motor Corporation. “High-quality battery technology that dramatically
boosts the performance of EVs.”
▶ 4Dnistran, I. (Feb. 6, 2023). “Nissan To Launch EV With Solid-State Batteries In
Five Years.”
▶ 5Renault Group. (Oct. 18, 2019). “The different types of electric car batteries.”
JULY 2023 | www.powerelectronicsnews.com 37
