Technologies
LOW TEMPERATURE HEATING
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”
Safety
“Firewall” Patent Technology
The patent technology of “Firewall” can block the spreading of battery thermal runaway and realize battery pack is never on fire.
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.
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 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.
Long Life
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
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.
High Performance
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
High Reliability
ASILD/ASILB Level Functional Safety
Hardware Redundant Design for Key Function
High EMC Performance
Broad Temperature Adaptability
Totally Domestic
Components are 100% totally domestic.