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Redeemable non-controlling interests (Details) ¥ in Thousands, $ in Thousands |  |  |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 29, 2024 CNY (¥) | May 31, 2024 CNY (¥) | Sep. 16, 2020 CNY (¥) | Apr. 29, 2020 CNY (¥) | Aug. 31, 2025 CNY (¥) | Jul. 31, 2025 CNY (¥) | Jun. 30, 2024 CNY (¥) | Sep. 30, 2021 CNY (¥) | Feb. 28, 2021 CNY (¥) | Jul. 31, 2020 CNY (¥) | Jun. 30, 2020 CNY (¥) | Jan. 31, 2026 CNY (¥) tranche | Dec. 31, 2025 CNY (¥) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2025 USD ($)
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 8,551,854 | ¥ 7,441,997 |  | $ 1,222,899
NIO China |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash investments received |  |  | ¥ 2,000,000 |  |  |  |  |  |  | ¥ 5,000,000 | ¥ 5,000,000 |  |  |  |  |
Minority interest (in percentage) |  |  | 8.612% |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest held (as a percent) |  |  |  |  |  |  |  |  | 3.305% |  |  |  |  |  |  |
Accretion of redeemable non-controlling interests to redemption value |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 567,877 | ¥ 329,939 | ¥ 303,163 |
Period to submit application for a Qualified Initial Public Offering |  |  |  |  |  |  |  |  |  |  |  |  | 48 months |  |  |
Period to complete the Qualified Initial Public Offering |  |  |  |  |  |  |  |  |  |  |  |  | 60 months |  |  |
Annual interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 8.50% |  |  | 8.50%
NIO Holding Co., Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minority interest (in percentage) | 11.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest held (as a percent) | 88.25% |  |  |  |  | 91.80% |  |  |  |  |  |  | 100.00% | 100.00% |  | 100.00%
Annual interest rate (as a percent) | 7.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of indirect interest in total paid-in capital |  |  |  |  |  |  |  |  |  |  |  |  | 91.80% | 89.02% |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 7,553,664 | ¥ 6,985,787 |  |
Percentage of equity interest to be acquired (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 1.08% |  |  |  |
Number of settlement tranches for equity acquisition | tranche |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |
Maximum consideration for equity interest acquisition |  |  |  |  |  |  |  |  |  |  |  | ¥ 1,002,000 |  |  |  |
Parent ownership interest percentage after acquisition (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 92.90% |  |  |  |
NIO Energy Investment (Hubei) Co., Ltd. ("PE CNHC") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minority interest (in percentage) |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest held (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  | 100.00%
Accretion of redeemable non-controlling interests to redemption value |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 41,980 | ¥ 17,577 |  |
Annual interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  | 5.00%
Percentage of indirect interest in total paid-in capital |  |  |  |  |  |  |  |  |  |  |  |  | 90.91% | 90.91% |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 998,190 | ¥ 456,210 |  |
Period for redemption of equity interest |  |  |  |  |  |  |  |  |  |  |  |  | 60 months |  |  |
Warrant Liabilities |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 72,409 | ¥ 53,146 |  |
Strategic investors | NIO China |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash injected |  |  |  | ¥ 7,000,000 |  |  |  |  | ¥ 5,500,000 |  |  |  |  |  |  |
Cash investments received |  |  | ¥ 511,458 |  |  |  |  | ¥ 2,500,000 |  |  |  |  |  |  |  |
Minority interest (in percentage) |  |  |  |  |  |  |  | 1.418% |  |  |  |  |  |  |  |
Accretion of redeemable non-controlling interests to redemption value |  |  |  |  |  |  |  | ¥ 2,023,534 |  |  |  |  |  |  |  |
Strategic investors | NIO China | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash injected |  |  |  |  |  |  |  |  | ¥ 10,000,000 |  |  |  |  |  |  |
Strategic investors | NIO Energy Investment (Hubei) Co., Ltd. ("PE CNHC") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of redeemable non-controlling interests |  |  |  |  | ¥ 500,000 |  |  |  |  |  |  |  |  |  |  |
NIO Holding Co., Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash injected | ¥ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional investment |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |
Payment to acquire additional interest |  |  |  |  |  | ¥ 20,000,000 |  |  |  |  |  |  |  |  |  |
Investment in subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 |  |  |
Additional investment in subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |
NIO Holding Co., Ltd. | Strategic investors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash injected | ¥ 3,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 2,800,000 |  |  |
NIO Energy Investment (Hubei) Co., Ltd. ("PE CNHC") | Strategic investors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable non-controlling interests |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash injected |  | ¥ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of redeemable non-controlling interests |  |  |  |  |  |  | ¥ 500,000 |  |  |  |  |  |  |  |  |
Additional purchase of warrants |  | ¥ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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