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Recap – Solid-state Battery Summit – Chicago, IL (USA) – August 2-3, 2022
Posted on 2022-08-09
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Swappable Solid-liquid EV Batteries
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At the recent Solid-state Battery Summit in Chicago organized by Cambridge EnerTech, the merits of combining a minor amount of liquid / ionic liquid / low-melting salt (e.g. Li0.8Cs0.2FTFSI with melting point of 40 °C, patent filing by CATL) with solid electrolytes were controversially debated. Such solid-liquid electrolyte approaches make hypothesis-driven research and assessing product development results challenging.
FTFSI: fluorosulfonyl-(trifluoromethanesulfonyl)imide
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However, let's look at NIO's efforts of enabling about 600 miles / 1,000 km range in Q4/2022 in its existing EV models based on a novel swappable 150 kWh / 360 Wh/kg hybrid solid-liquid battery (presumably provided by WeLion).
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This agile, data-driven approach should allow for optimizing product-market fit by tuning components through large amounts of real-world application data (incl. A/B tests). Premature pack degradation or potential safety issues can potentially be dealt with in a pro-active manner, by swapping such packs out before problems multiply.
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While swappable battery EVs might be viable only in markets with high population density, the resulting optimized battery cell configurations can be incorporated also into non-swappable battery EVs.
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https://agilemanifesto.org/principles.html
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This post was also published on LinkedIn.
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