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Date: 2021-09-07 10:07:30
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WHY IS IT DIFFICULT TO MASS PRODUCE SOLID STATE BATTERIES?
Carmakers and technology companies have produced solid-state li-ion battery cells one at a time in a lab, but have been unable so far to scale that up to a mass production.
It is hard to design a solid electrolyte that is stable, chemically inert and still a good conductor of ions between the electrodes. They are expensive to fabricate and are prone to cracking because of the brittleness of the electrolytes when they expand and contract during use.
Currently, a solid-state cell costs about eight times more to make than a liquid li-ion battery, experts say.
WHO’S TRYING TO MAKE THEM?
Japan’s Toyota Motor Corp is one of the front runners to mass produce solid-state batteries. It has said it is struggling with their short service life https://www.reuters.com/article/japan-toyota-batteries/toyota-to-spend-over-13-5-billion-on-ev-batteries-by-2030-idUSKBN2G30D9 but still intends to start making them by mid 2020s.