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v3.23.1

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Summary of Significant Accounting Policies |
Schedule of significant unobservable inputs adopted in the valuation | ​
​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021 | ​ | December 31, 2022
Unobservable Input |  |  |  |
Expected volatility |  | 61% |  | 54%-61%
Probability |  | Liquidation scenario: 35% Redemption scenario: 35% IPO scenario: 30% |  | Liquidation scenario: 25%-40% Redemption scenario: 25%-40% IPO scenario: 20%-50%
​
Schedule of cash and cash equivalents | ​
​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2021 |  | 2022
Cash and cash equivalents |  | 15,333,719 |  | 19,887,575
Restricted cash |  | 2,994,408 |  | 3,154,240
Long-term restricted cash |  | 46,437 |  | 113,478
Total |  | 18,374,564 |  | 23,155,293
​
Schedule of expected credit loss provision for the current and non-current assets | Balance as at December 31, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Expected | ​ | Expected
​ | ​ | Original | ​ | credit loss | ​ | credit loss
​ |  | amount |  | Rate |  | provision
Current assets: |  |  |  |  |  |
Trade and notes receivable |  | 2,823,222 |  | 0.90 | % | 25,417
Amounts due from related parties |  | 1,564,025 |  | 0.81 | % | 12,691
Prepayments and other current assets |  | 1,854,075 |  | 0.21 | % | 3,932
Non-current assets: |  | ​ |  | ​ |  | ​
Other non-current assets |  | 5,598,764 |  | 0.88 | % | 49,309
​ Balance as at December 31, 2022
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Expected | ​ | Expected
​ | ​ | Original | ​ | credit loss | ​ | credit loss
​ |  | amount |  | Rate |  | provision
Current assets: |  |  |  |  |  |
Trade and notes receivable |  | 5,157,814 |  | 0.77 | % | 39,644
Amounts due from related parties |  | 1,387,694 |  | 0.49 | % | 6,738
Prepayments and other current assets |  | 2,250,441 |  | 0.18 | % | 4,033
Non-current assets: |  | ​ |  | ​ |  | ​
Other non-current assets |  | 7,488,200 |  | 1.20 | % | 89,641
​
Schedule of estimate useful life of property, plant and equipment | ​
|  | Useful lives
Buildings and constructions | ​ | 20 years
Production facilities | ​ | 10 years
Charging & battery swap equipment | ​ | 5 to 8 years
R&D equipment | ​ | 5 years
Computer and electronic equipment | ​ | 3 years
Purchased software | ​ | 3 to 5 years
Leasehold improvements | ​ | Shorter of the estimated useful life or remaining lease term (ranging from 1-10 years)
Corporate vehicles | ​ | 5 years
Others (office equipment, after-sales equipment, etc) | ​ | 3 to 5 years
​
Schedule of estimate useful life of intangible assets, net | ​
| ​ |
|  | Useful lives
Domain names and others | ​ | 5 years
​
Schedule of reconciliation of carried-forward warranty liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Year Ended December 31,
​ |  | 2020 |  | 2021 |  | 2022
Warranty – beginning of year |  | 412,004 |  | 952,946 | ​ | 1,962,977
Provision for warranty |  | 582,069 |  | 1,078,854 | ​ | 1,128,920
Warranty costs incurred |  | (41,127) |  | (68,823) | ​ | (144,960)
Warranty– end of year |  | 952,946 |  | 1,962,977 | ​ | 2,946,937
​

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126907703&loc=d3e12565-110249 + Details
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