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China's New Battery: EV Range Revolution Ahead
7 Mar
Summary
- New battery offers 30% greater energy density than current lithium-ion.
- Potential EV driving range of over 1,000 km on a single charge.
- Semi solid-state technology uses lithium-rich cathode and hybrid electrolyte.
A new semi solid-state battery developed by researchers at Nankai University in China promises a significant leap in electric vehicle range. This innovative battery chemistry reportedly offers a 30% boost in energy density compared to current leading lithium-ion batteries.
System-level energy density has reached 288 Wh/kg, with scientists aiming for over 340 Wh/kg in future iterations. The technology, featuring a lithium-rich manganese cathode and a hybrid solid-liquid electrolyte, could enable EVs to travel over 1,000 km (approximately 620 miles) on a single charge. Early reports suggest this could even extend to 1,600 km (nearly 1,000 miles) with iterative upgrades.
This advancement incorporates lithium anode technology, aiming to simplify manufacturing, reduce costs, and enhance safety and cycle life. While promising, the results from this university-industry collaboration are awaiting independent verification. If successful, this technology could redefine EV capabilities, offering substantial range improvements.
Comparatively, current advanced semi-solid-state batteries in production, like those in the MG 4, offer around 180 Wh/kg and a 333-mile range. The Nankai University battery's potential for longer range hinges on increased energy density translating to more compact and lighter battery packs.
