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Why Na-ion Battery

With the rapid development of portable electronic devices and electrical vehicles, the production of lithium-ion batteries has reached an unprecedented scale. All major lithium battery manufacturers are constantly expanding their production capacity to meet the big market. It will inevitably leads to large consumption and of lithium resources and price rise (already). In fact, lithium is not an abundant element, whose content in the earth's crust is only 0.0065%. It is also unevenly distributed, with 70% of which distributed in South America. According to the current booming application of Li-ion batteries, it will be severely limited by lithium resources in a few decades. And the limitation will be more severe if Li-ion batteries were applied in grid scale energy storage. However, the sodium, with similar physicochemical properties to lithium in the same main group, are very abundant, and its abundance in the earth's crust is ranked the sixth.

More importantly, sodium is distributed all over the world, completely independent of resources and geography. Therefore, Na-ion batteries have a very large resource advantage over Li-ion batteries. On the other hand, Na-ion batteries have great potential cost advantages due to cheap sodium price, and are very suitable for applications in low-speed electric vehicles and large-scale energy storage.

Why Na-ion Battery

HiNa‘s Advantages

Cathode Material

Exclusive low-cost Cu-based oxide
Step 1: For the first time, the electrochemical cycling performance and structural reversibility of the material have proven that Cu2 +/Cu3 + redox pairs are highly reversible. The patent layout has been completed and authorized both domestically and internationally, establishing a "patent barrier" for copper-based sodium cathode materials.

Step 2: Through high-throughput theoretical simulation calculations and experiments, synchronously establish in-situ characterization technology, develop bulk-phase multi-point doping substitution and surface coating technology suitable for sodium cathode, and develop Na-Cu-Fe-Mn-M-O cathode materials that are both low-cost, high-stability, long-life, and environmentally friendly.
Negative Electrode Material

Exclusive pioneering low-cost coal-based amorphous carbon negative electrode material technology.
Electrolyte

Optimizing high-stability electrolyte system to synergistically improve battery key performance.
Patent

Total number of patents: 249, applied for patents: 141, authorized patents: 108, invention patents: 101

Patent distribution:
Equipment: 95 Battery components: 63 Positive electrode material: 61 Battery system: 11 Negative electrode material: 10 Cell material: 5 Electrolyte: 4

Cathode Core Patent
The invention patent regarding the cathode material of copper based layered oxide (Na-Cu-Fe-Mn-M-O) has been authorized in China、 Japan、 the United States and the European

Anode Core Patent
The invention patent regarding the anode material of carbon prepared from coal has been authorized in China, Japan and the United States.
Product Performance

◼01 Energy Density:
The energy density of sodium-ion batteries is 120-165Wh/kg, which is 3-4 times that of lead-acid batteries, and the energy density is slightly lower than that of lithium iron phosphate.

◼02 Operating Temperature:
It has both high and low temperature charging and discharging characteristics, with ultra-low temperature discharge at -40 ℃ and low temperature rechargeable at -20 ℃, reducing thermal management costs.

◼03 Fast Charging:
The charging rate can reach 5C, and the advantage of fast charging is obvious.

◼04 Security Feature:
The product has passed a series of certifications and related tests such as GB 38031-2020, UN38.3, UL1642, GB/T31485-2016, and its safety meets the standards.

◼05 Performance Data:
① Battery capacity remains above 70% at -40 ℃; ② Battery capacity remains above 88% at -20 ℃; ③ Capacity retention rate is 92% after 1800 cycles of 1C cycle; ④ Capacity retention rate is 92% after 1600 cycles of 2C cycle (CC cycle); ⑤ Capacity retention rate is 96% after 4300 cycles of 2P cycle; ⑥ Capacity retention rate is still above 95% after 4C discharge.

Why Na-ion Battery

Why Na-ion Battery

HiNa‘s Advantages

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