Kaijin New Energy releases latest achievements in ARDR atomic rearrangement site repair technology
2026-01-06
Kaijin New Energy and CATL (CATL) have achieved phased results in raw material processing and structural control: based on ARDR (Atom Rearrangement&Defect Repair) technology, targeted repair and ordered reconstruction are carried out around the microstructure and multi-level micro defects of raw materials, and mass production is achieved on a controllable graphitization platform. This achievement helps to improve the volume stability and consistency of materials during charge and discharge processes, while balancing performance, cost, and environmental goals.
Industry background:
Raw material adaptation and stability for large-scale applications
With the continuous expansion of new energy applications, negative electrode materials are operating in a wider range of raw material lineages and more application scenarios, placing higher demands on structural efficiency, volume stability, production consistency, and environmental compliance. Compared to the single indicator raw material screening path, material engineering for industrialization requires more replicable processing and control methods to transform raw materials from different sources and structural characteristics into stable and reliable product performance.
Technological breakthrough:
ARDR atomic rearrangement site repair technology
Starting from 2023, Kaijin New Energy will launch a special research project on "Structural Control and Platform Adaptation of Petroleum Coke Sulfur Elements", focusing on the growth of raw material microcrystalline texture, element migration and transformation behavior, and the multi field evolution laws of graphitization thermodynamics and kinetics. A systematic study has been conducted.
Based on research results, Kaijin has developed a model for the evolution of sulfur element texture in petroleum coke and a controllable graphitization window mechanism, and independently developed ARDR texture controllable directional control reshaping technology.
Through this technology, Kaijin combines the production process of artificial graphite, especially the controllable graphitization technology platform, to achieve efficient crystallization conversion of raw material coke and rearrangement and repair of sulfur occurrence points through precise heating curves and atmosphere control, making the raw material structure more dense and orderly, significantly improving the efficiency and cycle stability of graphitization conversion, and achieving the collection and high-value utilization of sulfur elements.
Verification result:
Synergistic improvement of performance, stability, and environmental protection
In mass production conditions and joint validation, the corresponding material performance of ARDR technology is as follows (typical range):
specific capacity | 350–360 mAh/g | Meet the demand for high-energy density products |
cycle life | energy storage > 8000 次 power > 4000 次 | Enhanced structural stability and interface consistency |
Fast charging capability | cover 1C–6C | Smoother ion transport path and more controllable polarization |
compaction density | 1.65–1.70 g/cm³ | Balancing volumetric energy density and processing adaptability |
Volume stability | Controlled cyclic expansion | Long term consistency friendly |
Note: The above is a typical range for company testing and external verification, and the specific values may vary depending on the product model and application scenario.
Key points of the mechanism:
Systematic collaboration from microcrystalline texture to manufacturing process
The core of ARDR is multi-scale structural evolution control:
Texture orientation and microcrystalline reconstruction: achieving orderliness and defect dimensionality reduction within the graphitization window;
Interface and impurity site management: By repairing and grading the sites, side reactions and gas evolution can be reduced;
Process and energy consumption coordination: deeply coupled with manufacturing processes to achieve engineering optimal solutions between consistency, energy consumption, and environmental protection.
The above mechanism enables controllable, replicable, and mass-produced conversion paths for raw materials with different characteristics on industrial platforms, supporting large-scale delivery.
Platform based implementation:
Full chain promotion from technology to product
At present, ARDR technology has been applied in various types of negative electrode products, covering scenarios such as power batteries, energy storage systems, and consumer batteries. Kaijin will continue to improve the engineering system of "raw material grading structure repair graphitization control recycling closed-loop", promote standardization and scaling, and plan to complete the full chain layout of "ARDR artificial graphite intelligent manufacturing multi scenario application platform" before 2026.
Looking towards the future:
From a single indicator oriented approach to a structural efficiency oriented approach
Kaijin New Energy deeply recognizes that the industrial competition of negative electrode materials is shifting from raw material labeling to comprehensive competition in structural efficiency and manufacturing capabilities. The key path to improving industrial resilience and supply quality is to transform raw materials from different sources and structural characteristics into stable and reliable product performance through replicable engineering methods. Looking ahead to the future, we will continue to deepen the green innovation of our material system, jointly promote the green transformation of the new energy industry, and become the most trusted partner for customers on the path towards a sustainable future.