Risks and Liquidity	12 Months Ended
Dec. 31, 2021
Risks And Liquidity [Abstract]
Risks and Liquidity	Risks and LiquidityPrior to the Business Combination, the Company primarily financed its operations through the sale of convertible preferred stock, common stock, borrowings under convertible promissory notes and borrowings under loan agreements. The Company now believes that the Business Combination has provided substantial liquidity and that its $444.6 million of cash and cash equivalents, restricted cash, and marketable securities will enable it to fund its planned operations for at least twelve months from the issuance date of these consolidated financial statements.Beginning in March 2020, the COVID-19 pandemic and the measures imposed to contain this pandemic have disrupted and are expected to continue to impact the Company’s business. The magnitude of the impact of the COVID-19 pandemic on the Company’s productivity, results of operations and financial position, and its disruption to the Company’s business and battery development and timeline, will depend in part, on the length and severity of these restrictions and on the Company’s ability to conduct business in the ordinary course. We continue to monitor the rapidly evolving conditions and circumstances, as well as guidance from international and domestic authorities, including public health authorities, and we may need to take additional actions based on their recommendations. There is considerable uncertainty regarding the impact on our business stemming from current measures and potential future measures that could restrict access to our facilities, limit manufacturing and support operations and place restrictions on our workforce and suppliers. The measures implemented by various authorities related to the COVID-19 outbreak have caused us to change our business practices including those related to where employees work, the distance between employees in our facilities, limitations on in-person meetings between employees and with customers, suppliers, service providers and stakeholders, as well as restrictions on business travel to domestic and international locations or to attend trade shows, investor conferences and other events.

Risks and Liquidity

12 Months Ended

Dec. 31, 2021

Risks and LiquidityPrior to the Business Combination, the Company primarily financed its operations through the sale of convertible preferred stock, common stock, borrowings under convertible promissory notes and borrowings under loan agreements. The Company now believes that the Business Combination has provided substantial liquidity and that its $444.6 million of cash and cash equivalents, restricted cash, and marketable securities will enable it to fund its planned operations for at least twelve months from the issuance date of these consolidated financial statements.Beginning in March 2020, the COVID-19 pandemic and the measures imposed to contain this pandemic have disrupted and are expected to continue to impact the Company’s business. The magnitude of the impact of the COVID-19 pandemic on the Company’s productivity, results of operations and financial position, and its disruption to the Company’s business and battery development and timeline, will depend in part, on the length and severity of these restrictions and on the Company’s ability to conduct business in the ordinary course. We continue to monitor the rapidly evolving conditions and circumstances, as well as guidance from international and domestic authorities, including public health authorities, and we may need to take additional actions based on their recommendations. There is considerable uncertainty regarding the impact on our business stemming from current measures and potential future measures that could restrict access to our facilities, limit manufacturing and support operations and place restrictions on our workforce and suppliers. The measures implemented by various authorities related to the COVID-19 outbreak have caused us to change our business practices including those related to where employees work, the distance between employees in our facilities, limitations on in-person meetings between employees and with customers, suppliers, service providers and stakeholders, as well as restrictions on business travel to domestic and international locations or to attend trade shows, investor conferences and other events.