R&D and Manufacturing
Utilizing innovative battery technology and efficient, low-carbon smart manufacturing equipment to achieve clean, green, and efficient energy products.
Innovation Concept
Focusing on core business, breaking through self-limitations, opening up resource boundaries and capability boundaries, continuously creating value for customers.
To start for an end
All research and development innovations and technological breakthroughs of Rongjie Energy are ultimately aimed at addressing customer pain points. They rely on efficient implementation of theoretical calculations, material encoding, and engineering tools to iterate and break through materials, battery, and module technologies.
To start for an end
Integrating all research and development innovations and technological breakthroughs of Rongjie Energy.
To learn from action
Rongjie Energy's research and development innovations and technological breakthroughs are derived from internal actual data, incorporating materials, equipment, processes, and electrochemical models to offer optimal technical solutions.
To learn from action
Rongjie Energy's research and development innovations and technology
To make an achievement with persistence
Rongjie Energy has accumulated and maintained a continuous focus on R&D technologies.
To make an achievement with persistence
Rongjie Energy has accumulated and maintained a continuous focus on R&D technologies.
Cutting-edge technology
By building upon the foundation of cellular development, we achieve continuous innovation in battery energy technology, thereby fulfilling the grand vision of global sustainable development.
High energy density
Long lifespan
Wide temperature range
High safety
Intelligent management
High specific capacity cathode technology
By developing high crystallinity limited sintering technology and precisely controlling particle size, we improve material dynamics in multiple dimensions. This leads to a significant enhancement of both high gravimetric capacity and high volumetric performance.
Dual optimization of negative electrode capacity and compaction technology
By using microstructure characterization technology to choose precursors with high specific capacity potential, along with particle surface defect repair and particle size grading technologies, we achieve the objective of balancing the capacity and compaction of the negative electrode material.
Gradient electrode sheet technology
By conducting mechanism research and utilizing electrode sheet simulation technology, we can achieve optimal material combinations that align with project objectives. This enables us to design battery performance and implement processes in the most efficient way possible, ultimately enhancing the cell's maximum energy density.
Slow-release active lithium cathode technology
By designing the link between precursor and cathode material sintering processes, optimizing particle secondary structure and coating effects, we improve the stability of particles and interfaces. Additionally, incorporating active lithium technology ensures a longer battery lifespan.
Artificial passivation film construction technology for negative electrode
By utilizing powder coating and surface vapor deposition technology, we construct a controllable and multifunctional artificial solid electrolyte interface (SEI) in small quantities. We conduct qualitative research to examine the impact of the coating process, amount of coating, and choice of coating materials on cell performance. Ultimately, we quantify the cause-effect relationship between these factors and cell performance.
Stable self-healing electrolyte
By utilizing high-throughput computation and AI-designed electrolyte formulation, the solvation structure of lithium ions can be selectively adjusted to optimize the dynamics of lithium ion transport. This leads to the creation of a stable and highly ion-conductive SEI film, enabling long-lasting cycling performance under different operating conditions.
Low-temperature cathode technology
By integrating high crystallinity limited sintering technology, composite coating technology, and fast ion channel interface design, we aim to enhance the low-temperature dynamics of materials.
Control of negative electrode surface and bulk phase
By adopting surface modification and bulk phase control technology for the negative electrode, we can improve material dynamics and optimize high-temperature durability. This will comprehensively enhance performance in both high and low temperatures.
Internal battery temperature prediction technology
A high-precision battery thermal model has been developed, pioneering the industry's internal battery temperature estimation technology. This technology estimates the internal temperature of the battery using surface and terminal temperatures collected from it.
High safety electrolyte
Independent electrolyte additives and formulation design aim to enhance the thermal reaction of battery cells, improve the heat resistance of the electrolyte itself, and achieve precise control of the solid-liquid interface for various negative electrode materials.
High safety separator
Based on data and models, a separator compatibility library is developed for various battery cell application scenarios, to ensure optimal thermal resistance and interface properties with electrode plates, thereby enhancing battery safety.
Internal short circuit identification
By utilizing AI technology and battery models, we can calculate the real-time internal short circuit current of each battery cell. This enables us to promptly identify the internal short circuit status of each cell and prevent thermal runaway.
Thermal runaway inflection point identification technology
Based on the experimental databases of critical temperatures (T1/T2/T3) for battery cell thermal runaway, this technology compares the real-time temperature curve of the battery pack with fitted data. If key features match, it generates warnings for thermal runaway events
Positive pressure oxygen removal technology
After the generation of thermal runaway warning information, the battery pack initiates the injection of flame retardant medium to disperse residual air oxygen inside the battery pack, ensuring that high-temperature leakage from battery cells does not result in open flames.
Real-time monitoring technology at all times
Sampling the electrical architecture while it is not powered off, integrating the sampling module with battery cells, monitoring early-stage anomalies of thermal runaway in real-time, and enabling the main control module to be awakened by safety events when it is in sleep mode.
Flameless venting and explosion technology
By utilizing innovative pressure relief technology, the battery safely discharges high-temperature and high-pressure leakage components through the pressure relief valve without generating open flames, effectively eliminating any associated risks.
Multi-level protection technology for high voltage circuits
Circuit breakers protect against short-term excessive currents, fuses protect against system short-circuit failures, and relays ensure normal power off when the system is de-energized.
Multi-scenario SOC correction
For different usage scenarios, dynamic adaptive algorithms are used to estimate the open circuit voltage (OCV) of the battery in real-time, ensuring that the SOC error throughout the battery's lifecycle is controlled within ±3%.
Multi-dimensional SOH estimation
By utilizing adaptive algorithms that consider various factors including capacity, impedance, consistency, and self-discharge rate, the battery's health status (SOH) is estimated to promptly identify retired batteries. This ensures safety and enhances performance.
Dynamic adaptive power estimation
The industry's first dynamic adaptive power estimation technology is used to estimate the maximum charge and discharge power of the battery in real-time, fully utilizing the battery's capabilities, and enhancing battery safety and lifespan.
Cloud BMS
By leveraging AI, big data, and cloud computing technologies, we can overcome the limitations of storage and computing resources in terminal BMS. This allows for accurate lifespan prediction and timely safety warnings.
A large comprehensive laboratory integrating material characterization, electrical performance testing, and safety testing.
Physical and Chemical Laboratory
Electrical Performance Laboratory
Safety Laboratory
Battery Charge and Discharge Testing
Battery Cycle High/Low Temperature Storage Testing
Battery Cycle High/Low Temperature Storage Testing
Vibration Testing
Battery Crush and Puncture Testing
Battery Thermal Shock Testing
Intelligent Manufacturing
Building a digital operation management system, creating a green and intelligent factory, achieving intelligent operational decision-making.
Digital Factory

Digital Twin Visualization Platform
Internet of Things
Smart Park
Smart Logistics

Automated Production Line

Planning of Battery Cell Assembly Line
Automated Monitoring Platform
AR Workshop Inspection
Energy Saving and Consumption Reduction

High Reliability and Safety

Process Dust Control
Die Cutting Burr Control
Workshop Environmental Dust Control

Product Consistency

Workshop Environment Control
1200 Parameters for Process Control
48 Special Characteristics (CC/SC)
56 Parameters for Statistical Process Capability