[numpad0]

Looks like this is a PoC for Toyota's "sweep storage system" using "low voltage MOS", which seem to be a fancy invented term for a charge/discharge current limiter. [2] has photos of previous PoC from 2023.

1: https://global.toyota/jp/newsroom/corporate/43207750.html

2: https://www.power-academy.jp/sp/electronics/report/rep03200....

[mNovak]

I think the "low voltage MOS switch" is just a roundabout way of saying MOSFET, which is very common in power electronics generally.