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Revenue (Tables)
 6 Months Ended
Jun. 30, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Composition of Revenue The table below shows the composition of revenue from customers, as disaggregated by type of arrangement in accordance with Topic 606, and other revenue, which consisted of government grants that were accounted for following the accounting standards from International Accounting Standards 20, Accounting for Government Grants and Disclosure of Government Assistance (in thousands).
Three months ended June 30,Six months ended June 30,
2025202420252024
Revenue from customers:
Sale of battery products$14,542 $3,345 $25,526 $5,681 
Customization design services325 — 325 — 
Other revenue – government grants200 — 500 — 
Total revenue$15,067 $3,345 $26,351 $5,681