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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2024
Summary of Significant Accounting Policies [Abstract] |
Schedule of Property, Plant and Equipment Estimated Useful Life | Within the property, plant and equipment, the value for construction in process is included within the manufacturing equipment.
Category |  | Estimated useful life
Leasehold improvements |  | 1-3 years
Manufacturing equipment |  | 3 – 10 years
Computer and electronic equipment |  | 3 – 5 years
Office equipment |  | 2 – 4 years
Motor vehicles |  | 3 – 4 years
Schedule of Amounts and Percentages of Total Revenues | The following table sets forth a breakdown of our revenues, in absolute amounts and percentages of total revenues for the six months ended June 30, 2023 and 2024,
|  | For the Six Months Ended June 30, |
|  | 2023 |  |  | 2024 |
|  | RMB |  |  | % |  |  | RMB |  |  | US$ |  |  | % |
|  | (in thousands, except for percentages) |
|  | （Unaudited） |
Sourcing services |  |  | 1,435 |  |  |  | 75.7 |  |  |  | 75 |  |  |  | 10 |  |  |  | 0.6 |
Product sales |  |  | - |  |  |  | - |  |  |  | 12,389 |  |  |  | 1,705 |  |  |  | 93.9 |
Battery-swapping services |  |  | 461 |  |  |  | 24.3 |  |  |  | 726 |  |  |  | 100 |  |  |  | 5.5 |
Total revenues |  |  | 1,896 |  |  |  | 100.0 |  |  |  | 13,190 |  |  |  | 1,815 |  |  |  | 100.0 |

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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