Safe and Fast Heating Technology(heating rate over 15℃/min)
Based on Safe and Fast Heating Technology(such as cell fast heating technology, pulsed heating technology or motor excitation heating technology), the heating rate of battery can reach as high as 15℃/min, which results only 5 minutes is required for heating the battery to ideal working temperature from -43℃.
Development of Battery Cell with Extreme Cold Tolerance
- By utilizing ultra-micro nanoscale cathode material, mixed-type anode material, low temperature type electrolyte, low temperature improving process and other technologies, the battery discharge rate can realize 3C in pulse and 1.5C in continuous at low temperature(-43℃).
Intelligent Thermal Insulation
- The temperature decreasing rate of cell is less than 2℃/h is achieved at low temperature -43℃ through thermal insulation design of battery module and pack.
- The heating algorithm is optimized according to the big data of driving habit by an intelligent identification technology.
High Precision Battery Status Estimation
- Less than 3% of Estimation Errors of SOC, less than 5% of estimation errors of SOE are achieved at Different Environmental Conditions, Which Based on the “Comprehensive Kalman Filter and Artificial Neural Network Battery System State Estimation Algorithms”
“Firewall” Patent Technology
The patent technology of “Firewall” can block the spreading of battery thermal runaway and realize battery pack is never on fire.
Thermal Protection and Early Warning Technology
- Protection in mechanical, electric and thermal aspects can ensure overall safety and reliability of the battery system.
- With the technology of one-cell-one-sensor, the temperature of every single cell can be real-time monitored.
- Based on a comprehensive technology to online identify internal short circuit with voltage and temperature signals, early warning of internal short circuit can be issued 15 minutes in advanced of battery thermal runaway.
Protection of Mechanical Abuse
- Strict tests on vibration, mechanical shock, extrusion, collision and falling are conducted to ensure the structure of battery is reliable under various extreme conditions.
- IP68 and IPX9K class protection level can be achieved to ensure battery system can work normally in conditions of crossing water , sandstorm or heavy dust.
Protection of High-Voltage Electric Abuse
High standard for Both the design and test standard of insulation withstand voltage are outclassing that of automobile industry, and the the whole process flow from pack to battery system are precisely controlled, thus the battery system has a good high-voltage electric safety.
With high level of requirement on insulation withstand voltage in design and manufacturing process of product, the safety regarding high-voltage is guaranteed.
- With BMS monitoring insulation resistance in real time and connectors with interlock functions, the circuit can be cut off as long as abnormal is identified to ensure human safety.
Over 5C fast charging,
fully charged in 15 min
5C Ultra-Fast Charging Technology
- By applying lithium-plating-prevention charging , high accurate temperature monitoring, thermal management during fast charging, model based fast charging algorithm, the cell performance limitation can be further widened to achieve 5C fast charging safely and stably, thus the battery pack can be fully charged within 15 minutes.
Multi-Surface Cooling Technology
- At high temperature 45℃, three-surface module cooling, five-surface cell cooling is applied, which can cool the battery efficiently during fast charging, the cell temperature would not exceed 35℃ and the cell temperature difference would not exceed 2℃.
Safely Fast Charging in Low Temperature
- Based on characteristic data of cell, with application of advanced phase change material to storage heat, with fast cell heating technologiesand with intelligent multi-stage charging strategy, battery system can be charged safely at low temperature.
High Energy Desnsity
Energy Dentisy in Pack Level ＞200Wh/kg
Gravimetric Cell to Pack Ratio ＞85%
- By Applying Matrix type module, CTP and CTC technologies, the pack volume and weight can be decreased and the cell to pack ratio can be improved significantly.
- Through decreasing the number of modules and simplifying the module structure, the energy density can be improved by decreasing the number of parts.
Mechanical Structure Optimization
- Based on applying non-load-bearing structure of battery box, the stiffness of module structural parts can be fully utilized, thus the bearing requirement of outer box can be reduced and box weight can be reduced by 30%.
- Basing on topology simulation and optimization, the material of parts can be reduced precisely, therefore both mechanical performance and lightweight design can be realized simultaneously.
New Material and New Process
- By using advanced lightweight materials, such as Mg-Al alloys or carbon fiber, the weight can be reduced further, and energy density can be further improved
- By using laser welding, resistance welding or structural bonding process, the number of fasteners can be decreased to reduce weight.
Life Over 10 Years or One Million Kilometers
Efficient Thermal Management Technology
- Different thermal management systems(eg. air cooling, liquid cooling, refrigerant cooling, PTC heating ) are equipped according to working conditions, therefore the cell temperature can be controlled in ideal range to decrease the influence of cell temperature to battery life.
High Accurate Monitoring of Cell State
- Basing one-cell-one-sensor technology, the temperature of each cell can be monitored, therefore the cell thermal management strategy can be optimized to control cell temperature in ideal range and the deterioration of pack life due to the decay of a few cells can be avoided.
High Accurate Estimation of Battery State
- Based on one-cell-one-sensor technology and model based algorithm in BMS, the estimation errors of SOC is less than 3% and the error of SOH is less than 5% during full life cycle, therefore the life of battery system can be extended.
Cost Reduction Driven by Innovative Product Design
- By applying CTP, CTC, large module, non-load-bearing structure and low-cost thermal management system, both the number of parts and the cost can be reduced.
Cose Reduction Driven by Highly Dedicated Design to Eliminate Redundancy
- By highly dedicated development of module and BMS, optimize electric schematic and components and eliminate redundancy, cost can be reduced without compromise on performance.
Cost Reduction Driven by Dedicated Design of Manufacting Process and Equipment
- Key equipment can be developed independently, which can improve the automatic level, and adopting innovative manufacturing process, therefore the cose of manufacturing process can be reduced significantly.
Flexible and Intelligent Manufacturing
Integrated Development Product Design and Manufacturing Process
Quick response, low cost, high productivity and multi-function, dedicated manufacturing equipment can be developed according to specific customer needs.
Quick Response and Low Cost
- According to the requirement from product design, process design and test process, dedicated test equipmentsuch as performance testing, function testing, high and low temperature testing can be developed to better fulfill the needs of customers.
All for Customer Needs
- In order to better fulfill customer needs, manufacturing equipment can be reconstructed and reorganized to quickly response to fulfill customer needs.
High Productivity by Automation
- By applying speicalized equipment(such as automatic turntable, flexible robotic-arm, double-station welding station, automatic rolling device and automatic gluing machine) to production line, the production capacity of one single shift can be hundreds of packs.
Diversified Welding Technologies
- A variety of welding technologies (such as laser welding, resistance welding and ultrasonic welding) can be applied for different products to achieve high productivity and high quality.
High Precision Electronic Control
Accurate Acquisition, High Precison Calculation and Quick Response
Adaptive State Estimation Algorithms
- Depending on the adaptive model based algorithms, the battery SOC/SOP/SOH status is calculated, and the battery is all-time monitored in all-weather in real time.
Cloud-based Big Data & OTA
- Through cloud computing and big data analysis, the control strategy can be customized for individual vehicle, in order to make each product working in its ideal status.
- 0.2% accuracy in current measurement with temperature drift correction
- 2 mV accuracy in cell voltage measurement
- 1℃ accuracy in battery temperature measurement
- 3% accuracy in SOC estimation (for LFP)
- 1 A balancing current
- ASILD/ASILB Level Functional Safety
- Hardware Redundant Design for Key Function
- High EMC Performance
- Broad Temperature Adaptability
- Components are 100% totally domestic.
More Advanced Techniques are
on the Way