Annual report pursuant to Section 13 and 15(d)

Accrued Expenses and Other Current liabilities

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Accrued Expenses and Other Current liabilities
 12 Months Ended
Dec. 31, 2021
Accrued Liabilities, Current [Abstract]  
Accrued Expenses and Other Current liabilities Accrued Expenses and Other Current liabilities
Accrued expenses consisted of the following (in thousands):
December 31,
2021 2020
Accrued interest expense $ —  $ 34 
Accrued property and equipment purchases 34,375  3,992 
Accrued research and development costs 23,994  2,420 
Accrued professional fees 9,239  1,386 
Accrued Business Combination costs —  815 
Short term lease liability 788  444 
Accrued battery supplier costs 10,000  — 
Accrued health insurance benefits 898  — 
Accrued information technology costs 763  — 
Other accrued expenses 3,868  1,534 
Total accrued expenses $ 83,925  $ 10,625