optimumnano
Product Overview
1. The OptimumNano 345.6V 90Ah LiFePO4 battery system is a high-voltage power solution specially designed for mining three-wheelers and underground electric vehicles.
2. Engineered for extreme working environments, this system delivers stable power output, high safety performance and long cycle life, making it ideal for heavy-duty transportation in mining operations.
3. With 31.1kWh total energy capacity and IP67 protection, the system ensures reliable performance under dust, moisture, vibration and temperature variations commonly found in mining sites.
System Highlights
1. High voltage platform (345.6V) for efficient power transmission.
2. High discharge capability for mining-grade load conditions.
3. Automotive-grade LiFePO4 cells with excellent thermal stability.
4. Natural cooling design reduces maintenance complexity.
5. IP67 waterproof and dustproof for underground environments.
6. Integrated smart BMS with real-time monitoring.
7.High structural strength enclosure for vibration resistance.
8. Stable low-temperature performance down to -20℃.
9. Long cycle life for continuous industrial operation.
10. Designed for 24/7 mining transportation scenarios.
System Architecture
The power system consists of:
1. 108S6P LiFePO4 battery module configuration
2. High-voltage battery enclosure
3. Master and slave BMS units
4. Power distribution and protection system
5. Thermal monitoring sensors
6. Integrated safety contactors and fuses
All components are industrial-grade and designed for high reliability.
Technical Specifications
| Item | Specification |
|---|---|
| System Voltage | 345.6 V |
| System Capacity | 90 Ah |
| Total Energy | 31.1 kWh |
| Battery Chemistry | LiFePO4 |
| Configuration | 108S6P |
| Operating Voltage Range | 270 V – 394.2 V |
| Standard Charge Current | 45 A |
| Max Continuous Charge Current | 90 A |
| Standard Discharge Current | 45 A |
| Max Continuous Discharge Current | 90 A |
| Peak Discharge Current | 120 A (30s) |
| Cooling Method | Natural cooling |
| Cycle Life | ≥ 1500 cycles (100% DOD) |
| Operating Temperature | Charge 0℃~55℃ / Discharge -20℃~60℃ |
| Protection Level | IP67 |
| Battery Weight | 308 ± 2 kg |
| Enclosure Size | 860 × 556 × 526 mm |
| Insulation Resistance | ≥ 20 MΩ |
| Communication Protocol | CAN |
| Operating Altitude | ≤ 3000 m |
Safety & Reliability
The system integrates multiple safety mechanisms:
1. Overcharge / over-discharge protection
2. Overcurrent and short-circuit protection
3. Insulation monitoring
4. Thermal protection and alarms
5. High-voltage interlock system
6. Emergency power cut-off
LiFePO4 chemistry ensures inherent resistance to fire and thermal runaway, making it one of the safest battery technologies for mining vehicles.
Application Scenarios
This system is suitable for:
1. Mining three-wheelers
2. Underground electric vehicles
3. Mining transport carts
4. Tunnel logistics vehicles
5. Quarry material handling equipment
6. Industrial electric tractors
Performance Advantages
1. Stable output under heavy load conditions.
2. High low-temperature retention rate (≥70% at -20℃).
3. High storage stability with minimal capacity loss.
4. Strong vibration and shock resistance.
5. Low maintenance design for harsh sites.
6. High energy efficiency reduces operating cost.
OEM & Customization
We provide full customization services:
1. Voltage and capacity adjustment
2. Mechanical structure design
3. BMS logic and communication protocols
4. Connector and interface customization
5. Enclosure protection level upgrades
6. Branding and labeling
About OptimumNano
OptimumNano Energy, founded in 2002, is one of China's earliest pioneers in cylindrical LiFePO4 battery technology.
As a subsidiary of China Aerospace Science and Technology Corporation, OptimumNano operates fully automated production lines and focuses on high-reliability battery systems for:
1. Electric vehicles
2. Energy storage systems
3. Mining equipment
4. Industrial machinery
5. Special-purpose vehicles
Project Support
We offer end-to-end engineering support:
1. Power system design
2. Vehicle integration assistance
3. Prototype testing and validation
4. Certification documentation
5. On-site technical support
6. Long-term service guarantee
