High-Energy-Efficiency and Long-Life Lithium Iron Phosphate
Through the optimization of ultimate grading and element ratio, the compaction, gram capacity and initial efficiency of lithium iron phosphate are simultaneously improved, realizing a leap in battery energy density. Meanwhile, the lithium iron phosphate interface is subjected to secondary carbon reforming and oxide composite modification to enhance the structural stability and conductivity of the cathode interface, solve the dissolution and shuttling of iron elements during long cycles, and strengthen the long-term service life of the battery.
Low-Lithium-Consumption Artificial Graphite
By regulating the graphite layer spacing, the volume expansion of lithium intercalation in the anode is reduced, and the expansion rate of the fully charged negative electrode sheet is decreased by 20%. By controlling the crystal plane orientation and combining with interface strengthening modification, the structural stability of the anode is improved, and the occurrence of side reactions is reduced.
High-Temperature Ultra-Stable Electrolyte
By optimizing solvent components and additive types, the stability of the battery electrode interface is improved, and the thermal stability of the battery is enhanced.
Hybrid solid-liquid electrolyte
Key materials and process technologies such as solid electrolyte and interface wetting agent have been tackled, stabilizing the lithium-conducting network and enabling uniform ion deposition, with the electrolyte proportion reduced by 30%.
SEI Film Inhibition
Through technologies such as electrolyte improvement, surface modification, and active material optimization, the side reactions and impurity generation during SEI film formation are reduced. The low-lithium-consumption SEI can self-repair, thereby improving the stability and conductivity of the film. The thermal stability of the negative electrode is significantly enhanced, which effectively inhibits or delays the thermal runaway process and prolongs the battery cycle life.
Ultra-long Service Life
By adopting low-expansion and low-lithium-consumption negative electrodes, high-temperature ultra-stable electrolytes, and solid electrolyte technologies, the anode interface is stabilized and the lithium ion distribution is uniform, solving the problems of battery anode collapse and lithium dendrite formation. Meanwhile, with the dual lithium supplementation technology for both positive and negative electrodes, lithium loss is compensated throughout the entire life cycle, achieving an ultra-long service life of the battery.
Dual Lithium Supplementation
It offsets the irreversible lithium loss caused by the formation of the SEI film, accurately compensates for the lithium loss throughout the entire life cycle of the battery, realizes the controllable slow release of lithium ions during the cycle, and improves the battery's cycle performance and energy density.
Lamination Process
Lamination has an inherent advantage of structural consistency, with no weak areas in electrochemical reactions. It ensures good consistency in electrochemical reactions and a long cycle life of battery cells. The innovative adoption of four-jellyroll and double butterfly welding process designs effectively balances production efficiency and cell performance, laying a technological foundation for the product's low impedance, long cycle life, and high safety.
All-scenario and Full-duration Applications
Narada energy storage batteries can not only meet short-term energy storage needs such as emergency frequency modulation and user-side emergency use, but also satisfy long-term energy storage requirements like grid peak regulation and supplementing power supply gaps, achieving full coverage of energy storage scenarios ranging from 1 to 8 hours.
BMS Three-Dimensional Protection
Through the four-layer architecture of "data acquisition layer, charge-discharge control layer, system management layer, and cloud service layer", it realizes the balance between battery clusters with no circulation current.
PCS with Good Adaptability
It can actively identify the grid conditions and more precisely and proactively suppress grid fluctuations. It can form a network across the full SOC range and all grid scenarios, increasing the proportion of new energy access by 40%.
EMS Intelligent Management
For diverse application scenarios of energy storage, it provides capabilities such as holographic perception, real-time monitoring, and intelligent diagnosis of power stations, along with a variety of energy control strategies and intelligent operation models. This enables intelligent management throughout the entire life cycle of power stations, reduces operational costs, extends equipment service life, and improves economic benefits, etc.
Multi-stage Variable Liquid-cooled Pipeline Design
By adjusting the local resistance characteristics in the pipeline through diameter reduction, the flow rate of each branch is changed, achieving uniform flow in each branch. The temperature difference within the PACK is 3℃, and within the system is 4℃.
Liquid-cooled Dual-system Backup
The liquid-cooled system is equipped with dual cooling circuits, which operate independently and serve as backups for each other. During normal operation, both liquid-cooled systems simultaneously perform thermal management for the batteries in the container; if one system malfunctions, the batteries can still work normally without affecting the operation of the power station.
Independently managed for single Rack
Integration of BCU and PCS to realize independently managed &operated for single rack; eliminate bias and circulation between Racks. Full - chain active balancing to eliminate the “bucket” effect to be balanced quickly and effectively. The system usable capacity will get 8% increase.
PACK-level Fault Removal
Compared with the traditional rack-level fault step-out, it can realize the quick isolation of a single faulty PACK, ensuring the power station capacity and system availability. PACK-level isolation can significantly reduce the fault loss from 16.7% to 2.1% compared to Rack-level isolation.
Multi-Physical Field Alarm
Based on big data fusion analysis and multi-physical field coupling model technology, the system can detect the risk of thermal runaway 24 hours in advance.
PACK-level Passive Self-activating Fire Suppression Technology
Adopting phase-changeable fire-extinguishing materials with excellent insulation and high-efficiency fire-extinguishing performance as the core materials, it is installed at PACK level in the form of a patch. When the capsule wall softens under specific temperature conditions, the fire-extinguishing agent is automatically released, achieving continuous inerting and suppression functions within the module.
AI Precision Fire Protection
Accurately predicts thermal runaway, triggers timely ventilation and explosion relief; suppressant directly to the PACK for targeted and precise fire extinguishing. Meanwhile, according to the thermal runaway simulation, valves are programmatically controlled to release suppressant multiple times, extending protection duration.
Customized Design
In response to different application scenarios and functions of the system, differentiated designs are carried out in terms of cell selection, thermal management, topology, and control, so as to meet customers' customized requirements.
Bipolar Membrane Electrodialysis for Lithium Extraction
Bipolar membrane electrodialysis is adopted to directly convert lithium sulfate into lithium hydroxide, which shortens the technological process. It efficiently produces battery-grade lithium salts, nickel salts, and cobalt salts, while avoiding the introduction of impurity ions.
Electrified Crushing and Fine Sorting Technology
The removal rate of organic solvents exceeds 99%, the harmless disposal rate of gaseous pollutants reaches 99.9%, and the recovery rate of cathode active materials is over 99%.
Direct Acidification Roasting
It enables the selective extraction of lithium from the source, with lithium leaching rate of over 95%.
