| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net loss | -1,100 | -46 | -412 | -445 | -478 |
|---|
| Depreciation and amortization | 8 | 11 | 28 | 42 | 58 |
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| Amortization of right-of-use assets and non-cash lease expense | - | - | 8 | 8 | 8 |
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| Amortization of premiums and accretion of discounts on marketable securities | -1 | -12 | -4 | 19 | 29 |
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| Stock-based compensation expense | 17 | 52 | 127 | 166 | 145 |
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| Fair Value Adjustment of Warrants | 21 | - | - | - | - |
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| Change in fair value of convertible preferred stock tranche liabilities | -1,000 | - | - | - | - |
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| Change in fair value of assumed common stock warrant liabilities | - | -169 | - | - | - |
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| Write-off of property and equipment | - | - | 14 | 22 | 13 |
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| Other | - | -1 | -1 | -0 | -0 |
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| Prepaid expenses and other current assets and other assets | 10 | 5 | -5 | 8 | 1 |
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| Increase (Decrease) in Accounts Payable and Accrued Liabilities | 2 | 6 | 6 | -3 | 15 |
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| Operating lease liability | -1 | -1 | -1 | -3 | -5 |
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| Other liabilities | - | - | 2 | -0 | -0 |
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| Net cash used in operating activities | -61 | -128 | -218 | -240 | -275 |
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| Purchases of property and equipment | 24 | 127 | 159 | 85 | 62 |
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| Proceeds from maturities of marketable securities | 113 | 894 | 837 | 1,042 | 1,485 |
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| Proceeds from sales of marketable securities | - | 224 | 15 | 1 | 1 |
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| Purchases of marketable securities | 892 | 1,377 | 570 | 1,111 | 1,295 |
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| Net cash provided by (used in) investing activities | -803 | -386 | 124 | -153 | 129 |
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| Proceeds from Stock Options Exercised | 1 | - | - | - | - |
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| Proceeds from exercise of stock options and employee stock purchase plan | - | 18 | 9 | 14 | 20 |
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| Proceeds from Warrant Exercises | - | 151 | - | - | - |
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| Proceeds from Issuance of Common Stock | 100 | 463 | - | 288 | 129 |
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| Proceeds from Issuance of Preferred Stock and Preference Stock | 176 | - | - | - | - |
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| Proceeds from issuance of Class A Common Stock pursuant to Legacy QuantumScape Series F Preferred Stock Purchase Agreement, net of issuance costs | - | 100 | - | - | - |
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| Business Combination, net of issuance costs paid | 677 | -1 | - | - | - |
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| Principal payment for finance lease | - | - | - | 2 | 3 |
|---|
| Dissolution of joint venture | - | - | - | - | 2 |
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| Net cash provided by financing activities | 954 | 737 | 9 | 300 | 144 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash | 90 | 223 | -85 | -92 | -2 |
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| Cash paid for interest | - | 0 | 2 | 2 | 2 |
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| Fair value of assumed common stock warrants exercised | - | 521 | - | - | - |
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| Capital Expenditures Incurred but Not yet Paid | 4 | 11 | 18 | 11 | 3 |
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| Business Combination transaction costs, accrued but not paid | 1 | - | - | - | - |
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| Net assets assumed from Business Combination | 1 | - | - | - | - |
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