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What is a semi-solid state battery?

By Jodie Chay Oneill | December 16, 2024

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MG plans to launch an electric vehicle equipped with a semi-solid-state battery in 2025

What is a semi-solid state battery?

MG plans to launch an electric vehicle equipped with a semi-solid-state battery in 2025, promising affordability compared to current battery technologies, according to the brand’s general manager.

Zhou Yan shared the news on China’s Weibo platform, stating:

“The first new MG model next year may feature a semi-solid-state battery. Let me tell you in advance – it won’t be expensive. The battery industry is progressing rapidly, so those interested in lithium-iron-phosphate (LFP) or ternary lithium batteries might want to wait.”

The upcoming EV, still unnamed, will include this advanced battery as standard.

Semi-solid-state batteries combine solid and liquid gel electrolytes, offering higher energy density, better range, faster charging, and improved thermal stability compared to traditional lithium-ion batteries. Unlike fully solid-state versions, these are easier to manufacture and less costly to produce.

MG’s move aims to outpace competitors like Volkswagen, which has not set a timeline for adopting similar technology. This bold step could position MG as a leader in bringing next-generation battery tech to mainstream EVs.

MG is following in the footsteps of SAIC-owned IM Motors, which debuted the L7 saloon with a semi-solid-state battery developed alongside Jiangsu Qingtao, a Chinese battery specialist.

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