I. Background of Electric Motorcycles
   The development of electric motorcycles has its specific background, which is mainly reflected in the following aspects:
Energy and environmental issues have become prominent
▲ The exhaust emissions of traditional fuel-powered motorcycles contain pollutants such as carbon monoxide and hydrocarbons, exacerbating air pollution. Against the backdrop of increasingly strict environmental protection requirements, electric motorcycles have obvious advantages of zero or low emissions, which aligns with the global environmental protection trend.
▲ Traditional energy sources such as oil are non-renewable resources with limited reserves. Concerns over the energy crisis have prompted people to seek alternative energy sources. Electricity has a wide range of sources and is renewable, making it an ideal alternative energy source and promoting the development of electric motorcycles.

Technological progress support
▲ Battery technology improvement is the key. The energy density of lithium-ion batteries has increased, costs have decreased, and cycle life has been extended, which has increased the driving range of electric motorcycles, shortened charging time, and made their performance more reliable.
▲ The motor technology has been upgraded. Permanent magnet synchronous motors feature high efficiency, large power density and excellent speed regulation performance, providing strong power and a good driving experience for electric motorcycles. In addition, electronic control technology can precisely control battery output and motor operation, enhancing the overall performance and safety of the vehicle.

Policy support and promotion
▲ Many countries and regions have introduced subsidy policies, such as offering cash subsidies and tax incentives for purchasing electric motorcycles, to reduce consumers' purchase costs and enhance their willingness to buy.
Diversification of market demand
▲ In urban commuting, electric motorcycles are flexible and convenient, easy to park, and can quickly navigate through congested traffic conditions, meeting the short-distance travel needs of urban residents.
Consumers' awareness of environmental protection and health has increased, and they tend to choose green travel methods. Electric motorcycles have no exhaust emissions and low noise, which conforms to this consumption trend.

   New energy lithium batteries, with their advantages of high energy density, long cycle life and environmental friendliness, have gradually become the preferred solution for electric motorcycles. This solution is designed to meet the application requirements of lithium batteries for electric motorcycles, ensuring that lithium batteries can provide safe, efficient and customized power solutions in special fields.

II. Analysis of Equipment Demand Characteristics
1. Equipment application characteristics
▲ Equipment types: urban commuting type, cargo transportation type, leisure and entertainment type, competitive sports motorcycles, etc.
▲ Working environment: Temperature range, -20℃ to +70℃, high temperature, high humidity environment, high vibration, etc.
▲ Power demand: Large continuous/peak power, long battery life, and the voltage platform generally adopts high-voltage platforms such as 60V or 72V.

2. Core requirements for lithium batteries
▲ High safety: Meeting the vehicle's requirements for shock resistance, water resistance, etc. under harsh working conditions.
▲ Long cycle life: ≥500 times (80% capacity retention rate).
▲ Fast charging: Supports fast charging and is suitable for high-intensity work.
▲ High-power discharge: The battery supports continuous high-current discharge, meeting the high-current requirements of high-power devices and ensuring their continuous and stable operation.
▲ Intelligent management: The BMS (Battery Management System) is equipped with functions such as overcharge protection, overdischarge protection, overcurrent protection, short-circuit protection, temperature protection, and fault diagnosis, making the battery more intelligent.
▲ Discharge temperature range: -20℃ to +70℃. In a low-temperature environment of -20℃, the battery's discharge efficiency is over 80%. A wider range of ambient temperature adaptability.
▲ Charging temperature: -20 ℃ to +50℃ range, with a wider adaptability to environmental temperatures.

III. Scheme Design
1. Battery selection
▲ Cell types: Ternary lithium batteries (ultra-low temperature, high energy density, high safety), lithium iron phosphate batteries (ultra-low temperature, high safety, long life), sodium-ion batteries (high safety, long life, good low-temperature performance). Different system cells are selected and matched according to different application scenarios.
▲ Battery combination configuration structure: Series and parallel schemes are designed based on the required voltage and capacity of the equipment to meet the requirements of different output voltage platforms.
▲ Structural design: IP65 to IP68 protection grade, shock-resistant structure, explosion-proof enclosure (suitable for extreme environments or flammable and explosive environments).

2. BMS Management System
Core functions:
▲ Real-time monitoring of the voltage, temperature, SOC (State of Charge), and SOH (State of Health) of individual battery cells.
▲ The battery charging active balancing technology enhances the consistency of usage among battery cells and extends the lifespan of the battery pack.
▲ The I2C/SMBUS/CAN/RS485 communication interface enables data interaction and communication with the main control system of the equipment.
▲ The Coulomb computing method makes the battery SOC more accurate and the battery smarter.

3. Charging solution
▲ Charging equipment: Customized smart charger/charger/charging cabinet, supporting constant current and constant voltage (CC-CV) charging.
▲ Charging strategy: Select fast charging or slow charging mode based on the working conditions to prevent battery overload.
▲ Intelligent control and management: Based on the technical performance characteristics of the battery, the battery charging process and fault diagnosis are intelligently controlled.

Iv. Safety and Compliance
1. Safety protection
▲ Thermal management: By adopting a reasonable structural layout, thermal runaway can be reduced. Physical cooling/air cooling systems can be used to ensure temperature uniformity during battery use and effectively control battery thermal runaway.
▲ Fault protection: Multiple hardware protection mechanisms such as overcharge, overdischarge, short circuit, overcurrent, and over-temperature.
▲ Fault protection: Multiple hardware protection mechanisms such as short circuit, overcurrent, and over-temperature.
▲ Explosion-proof certification: The design can pass various safety regulations certifications.

3. Standard compliance
▲ Comply with national standards: GB31241-2022 (Safety Technical Specification for Lithium-ion Batteries and Battery Packs for Portable Electronic Products), GB 17761-2024 (Safety Technical Specification for Electric Bicycles), GB/T 34131 (Lithium Batteries for Power Storage), GB 38031 (Safety Requirements for Batteries Used in Electric Vehicles), GB9706 series (Safety Standards for Medical Electrical Equipment), etc.
▲ How to obtain domestic and international certifications: GB certification, UN38.3 certification, UL certification, IEC certification, CE certification and other various certification requirements.

V. Project Implementation Plan

VI. Economic Benefit Analysis
1.Cost comparison
▲ Compared with other means of transportation, electric motorcycles have lower energy consumption costs, life cycle costs and parking costs, etc.
2. Energy-saving benefits:
▲ Compared with fuel vehicles, it has a higher energy utilization rate and recyclable energy, reducing the total energy consumption.
3. Maintenance cost:
▲ The cost of replacing each component and the maintenance cost are much lower than those of fuel vehicles.

VII. After-sales Service
1. Warranty period: 1 to 5 years of after-sales warranty, with a lifespan of 500 to 2,000 cycles or more (whichever comes first).
2. Remote monitoring: According to the actual demand status, the cloud platform provides real-time monitoring of the battery status and early warning of potential faults.
3. Emergency Response: Respond within 4 hours, provide solutions within 8 hours, and offer on-site technical support within 24 to 48 hours.

Hint:
▲ The plan needs to be refined based on specific equipment parameters (such as voltage, capacity, and size limitations).
▲ It is recommended to conduct joint debugging with the equipment manufacturer to ensure the compatibility of the battery with the entire machine system.