3.24.2.u1 html 174 237 1 false 46 0 false 5 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://solidpowerbattery.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 00100 - Statement - Condensed Consolidated Balance Sheets Sheet http://solidpowerbattery.com/role/StatementCondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 00105 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://solidpowerbattery.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 00200 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) Sheet http://solidpowerbattery.com/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) Statements 4 false false R5.htm 00300 - Statement - Condensed Consolidated Statement of Stockholders' Equity (Unaudited) Sheet http://solidpowerbattery.com/role/StatementCondensedConsolidatedStatementOfStockholdersEquityUnaudited Condensed Consolidated Statement of Stockholders' Equity (Unaudited) Statements 5 false false R6.htm 00400 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://solidpowerbattery.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 10101 - Disclosure - Nature of Business Sheet http://solidpowerbattery.com/role/DisclosureNatureOfBusiness Nature of Business Notes 7 false false R8.htm 10201 - Disclosure - Significant Accounting Policies Sheet http://solidpowerbattery.com/role/DisclosureSignificantAccountingPolicies Significant Accounting Policies Notes 8 false false R9.htm 10301 - Disclosure - Property, Plant and Equipment Sheet http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipment Property, Plant and Equipment Notes 9 false false R10.htm 10401 - Disclosure - Intangible Assets Sheet http://solidpowerbattery.com/role/DisclosureIntangibleAssets Intangible Assets Notes 10 false false R11.htm 10501 - Disclosure - Collaborative Arrangement Sheet http://solidpowerbattery.com/role/DisclosureCollaborativeArrangement Collaborative Arrangement Notes 11 false false R12.htm 10601 - Disclosure - Fair Value Measurements Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 10701 - Disclosure - Warrant Liabilities Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilities Warrant Liabilities Notes 13 false false R14.htm 10801 - Disclosure - Stockholders' Equity Sheet http://solidpowerbattery.com/role/DisclosureStockholdersEquity Stockholders' Equity Notes 14 false false R15.htm 10901 - Disclosure - Stock Based Compensation Sheet http://solidpowerbattery.com/role/DisclosureStockBasedCompensation Stock Based Compensation Notes 15 false false R16.htm 11001 - Disclosure - Basic and Diluted Loss Per Share Sheet http://solidpowerbattery.com/role/DisclosureBasicAndDilutedLossPerShare Basic and Diluted Loss Per Share Notes 16 false false R17.htm 11101 - Disclosure - Leases Sheet http://solidpowerbattery.com/role/DisclosureLeases Leases Notes 17 false false R18.htm 11201 - Disclosure - Related Party Transactions Sheet http://solidpowerbattery.com/role/DisclosureRelatedPartyTransactions Related Party Transactions Notes 18 false false R19.htm 11301 - Disclosure - Income Taxes Sheet http://solidpowerbattery.com/role/DisclosureIncomeTaxes Income Taxes Notes 19 false false R20.htm 11401 - Disclosure - Contingencies Sheet http://solidpowerbattery.com/role/DisclosureContingencies Contingencies Notes 20 false false R21.htm 20202 - Disclosure - Significant Accounting Policies (Policies) Sheet http://solidpowerbattery.com/role/DisclosureSignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://solidpowerbattery.com/role/DisclosureSignificantAccountingPolicies 21 false false R22.htm 30303 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) Tables http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipment 22 false false R23.htm 30403 - Disclosure - Intangible Assets (Tables) Sheet http://solidpowerbattery.com/role/DisclosureIntangibleAssetsTables Intangible Assets (Tables) Tables http://solidpowerbattery.com/role/DisclosureIntangibleAssets 23 false false R24.htm 30603 - Disclosure - Fair Value Measurements (Tables) Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://solidpowerbattery.com/role/DisclosureFairValueMeasurements 24 false false R25.htm 30703 - Disclosure - Warrant Liabilities (Tables) Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesTables Warrant Liabilities (Tables) Tables http://solidpowerbattery.com/role/DisclosureWarrantLiabilities 25 false false R26.htm 30803 - Disclosure - Stockholders' Equity (Tables) Sheet http://solidpowerbattery.com/role/DisclosureStockholdersEquityTables Stockholders' Equity (Tables) Tables http://solidpowerbattery.com/role/DisclosureStockholdersEquity 26 false false R27.htm 30903 - Disclosure - Stock Based Compensation (Tables) Sheet http://solidpowerbattery.com/role/DisclosureStockBasedCompensationTables Stock Based Compensation (Tables) Tables http://solidpowerbattery.com/role/DisclosureStockBasedCompensation 27 false false R28.htm 31003 - Disclosure - Basic and Diluted Loss Per Share (Tables) Sheet http://solidpowerbattery.com/role/DisclosureBasicAndDilutedLossPerShareTables Basic and Diluted Loss Per Share (Tables) Tables http://solidpowerbattery.com/role/DisclosureBasicAndDilutedLossPerShare 28 false false R29.htm 31103 - Disclosure - Leases (Tables) Sheet http://solidpowerbattery.com/role/DisclosureLeasesTables Leases (Tables) Tables http://solidpowerbattery.com/role/DisclosureLeases 29 false false R30.htm 40301 - Disclosure - Property, Plant and Equipment (Details) Sheet http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipmentDetails Property, Plant and Equipment (Details) Details http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipmentTables 30 false false R31.htm 40302 - Disclosure - Property, Plant and Equipment - Depreciation expense (Details) Sheet http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipmentDepreciationExpenseDetails Property, Plant and Equipment - Depreciation expense (Details) Details 31 false false R32.htm 40303 - Disclosure - Property, Plant and Equipment - Construction in progress (Details) Sheet http://solidpowerbattery.com/role/DisclosurePropertyPlantAndEquipmentConstructionInProgressDetails Property, Plant and Equipment - Construction in progress (Details) Details 32 false false R33.htm 40401 - Disclosure - Intangible Assets (Details) Sheet http://solidpowerbattery.com/role/DisclosureIntangibleAssetsDetails Intangible Assets (Details) Details http://solidpowerbattery.com/role/DisclosureIntangibleAssetsTables 33 false false R34.htm 40601 - Disclosure - Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurementsAssetsAndLiabilitiesMeasuredAndRecordedAtFairValueOnRecurringBasisDetails Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) Details 34 false false R35.htm 40602 - Disclosure - Fair Value Measurements - Measurement inputs (Details) Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurementsMeasurementInputsDetails Fair Value Measurements - Measurement inputs (Details) Details 35 false false R36.htm 40603 - Disclosure - Fair Value Measurements - Public Warrants measured at fair value using Level 1 directly observable inputs and Private Placement Warrants (Details) Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurementsPublicWarrantsMeasuredAtFairValueUsingLevel1DirectlyObservableInputsAndPrivatePlacementWarrantsDetails Fair Value Measurements - Public Warrants measured at fair value using Level 1 directly observable inputs and Private Placement Warrants (Details) Details 36 false false R37.htm 40604 - Disclosure - Fair Value Measurements - Fair value for the Public Warrants and Private Placement Warrants (Details) Sheet http://solidpowerbattery.com/role/DisclosureFairValueMeasurementsFairValueForPublicWarrantsAndPrivatePlacementWarrantsDetails Fair Value Measurements - Fair value for the Public Warrants and Private Placement Warrants (Details) Details 37 false false R38.htm 40701 - Disclosure - Warrant Liabilities (Details) Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesDetails Warrant Liabilities (Details) Details http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesTables 38 false false R39.htm 40702 - Disclosure - Warrant Liabilities - Additional information (Details) Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesAdditionalInformationDetails Warrant Liabilities - Additional information (Details) Details 39 false false R40.htm 40703 - Disclosure - Warrant Liabilities - Fair value of warrant liabilities (Details) Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesFairValueOfWarrantLiabilitiesDetails Warrant Liabilities - Fair value of warrant liabilities (Details) Details 40 false false R41.htm 40704 - Disclosure - Warrant Liabilities - Changes in fair value of warrant liabilities (Details) Sheet http://solidpowerbattery.com/role/DisclosureWarrantLiabilitiesChangesInFairValueOfWarrantLiabilitiesDetails Warrant Liabilities - Changes in fair value of warrant liabilities (Details) Details 41 false false R42.htm 40801 - Disclosure - Stockholders' Equity - Stock options exercised (Details) Sheet http://solidpowerbattery.com/role/DisclosureStockholdersEquityStockOptionsExercisedDetails Stockholders' Equity - Stock options exercised (Details) Details 42 false false R43.htm 40802 - Disclosure - Stockholders' Equity (Details) Sheet http://solidpowerbattery.com/role/DisclosureStockholdersEquityDetails Stockholders' Equity (Details) Details http://solidpowerbattery.com/role/DisclosureStockholdersEquityTables 43 false false R44.htm 40901 - Disclosure - Stock Based Compensation - Compensation costs (Details) Sheet http://solidpowerbattery.com/role/DisclosureStockBasedCompensationCompensationCostsDetails Stock Based Compensation - Compensation costs (Details) Details 44 false false R45.htm 40902 - Disclosure - Stock Based Compensation - Stock options and Restricted stock units (Details) Sheet http://solidpowerbattery.com/role/DisclosureStockBasedCompensationStockOptionsAndRestrictedStockUnitsDetails Stock Based Compensation - Stock options and Restricted stock units (Details) Details 45 false false R46.htm 40903 - Disclosure - Stock Based Compensation - Fair value of options granted (Details) Sheet http://solidpowerbattery.com/role/DisclosureStockBasedCompensationFairValueOfOptionsGrantedDetails Stock Based Compensation - Fair value of options granted (Details) Details 46 false false R47.htm 41001 - Disclosure - Basic and Diluted Loss Per Share - Schedule of reconciliation of basic weighted average common shares outstanding to diluted weighted average shares outstanding (Details) Sheet http://solidpowerbattery.com/role/DisclosureBasicAndDilutedLossPerShareScheduleOfReconciliationOfBasicWeightedAverageCommonSharesOutstandingToDilutedWeightedAverageSharesOutstandingDetails Basic and Diluted Loss Per Share - Schedule of reconciliation of basic weighted average common shares outstanding to diluted weighted average shares outstanding (Details) Details 47 false false R48.htm 41002 - Disclosure - Basic and Diluted Loss Per Share - Schedule of potentially dilutive securities excluded from the diluted loss per share calculation (Details) Sheet http://solidpowerbattery.com/role/DisclosureBasicAndDilutedLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromDilutedLossPerShareCalculationDetails Basic and Diluted Loss Per Share - Schedule of potentially dilutive securities excluded from the diluted loss per share calculation (Details) Details 48 false false R49.htm 41101 - Disclosure - Leases - Components of lease (Details) Sheet http://solidpowerbattery.com/role/DisclosureLeasesComponentsOfLeaseDetails Leases - Components of lease (Details) Details 49 false false R50.htm 41102 - Disclosure - Leases - Components of supplemental cash flow information (Details) Sheet http://solidpowerbattery.com/role/DisclosureLeasesComponentsOfSupplementalCashFlowInformationDetails Leases - Components of supplemental cash flow information (Details) Details 50 false false R51.htm 41103 - Disclosure - Leases - Lease term and discount rate (Details) Sheet http://solidpowerbattery.com/role/DisclosureLeasesLeaseTermAndDiscountRateDetails Leases - Lease term and discount rate (Details) Details 51 false false R52.htm 41104 - Disclosure - Leases - Schedule of future minimum payments (Details) Sheet http://solidpowerbattery.com/role/DisclosureLeasesScheduleOfFutureMinimumPaymentsDetails Leases - Schedule of future minimum payments (Details) Details 52 false false R53.htm 41201 - Disclosure - Related Party Transactions (Details) Sheet http://solidpowerbattery.com/role/DisclosureRelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://solidpowerbattery.com/role/DisclosureRelatedPartyTransactions 53 false false R54.htm 41301 - Disclosure - Income Taxes (Details) Sheet http://solidpowerbattery.com/role/DisclosureIncomeTaxesDetails Income Taxes (Details) Details http://solidpowerbattery.com/role/DisclosureIncomeTaxes 54 false false All Reports Book All Reports sldp-20240630.xsd sldp-20240630_cal.xml sldp-20240630_def.xml sldp-20240630_lab.xml sldp-20240630_pre.xml sldp-20240630x10q.htm sldp-20240630x10q004.gif http://fasb.org/srt/2024 http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 true true