Quality Management-江苏智泰新能源科技有限公司

technology

Technology

Sodium-ion batteries

The Zhitai New Energy Management Team has been focusing on the energy storage field for more than 10 years. The products developed by the company are widely used in communication base stations, low-speed transportation, overseas household storage, industrial and commercial energy storage, special applications, and other fields. Zhitai New Energy established a sodium ion battery research and development team in 2018, relying on cutting-edge technology from domestic scientific research institutions and collaborating with leading material factories in the sodium ion battery industry. After 5 years of development iteration, it has mastered the core technology of sodium ion batteries, and has successively landed sodium ion products in various application scenarios. At the same time, it has laid out dozens of related patents. At present, we have closely cooperated with multiple well-known key sodium electrical material manufacturers in China to ensure the safety of main material supply after large-scale production.

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Research direction of sodium ion batteries

Positive and negative electrode materials

Screen positive and negative electrode materials for battery, and optimize and modify them at the material level.

Electrochemical characteristics

Study the electrochemical characteristics of batteries under different conditions to optimize the design of battery systems through feedback.

Full battery products

Optimize the composition and structure of the entire battery, improve its performance, and control battery costs.

Electrolyte

Match electrolyte materials, optimize electrolyte composition, concentration, solvation configuration, and supplement with functional additives.

Process

Explore the most suitable process conditions for the production of sodium ion batteries.

Characteristics of sodium ion batteries

Excellent low-temperature performance

Using hard carbon as the negative electrode material, further improving the kinetic performance by adjusting the size and morphology of hard carbon particles

Excellent low-temperature performance

Targeted self-developed low-temperature electrolyte system more suitable for sodium ion batteries, reducing the low-temperature viscosity of the electrolyte and improving its ion conductivity

Comparison of performance and cost of sodium ion batteries

Mass energy density Volumetric energy density Safety Low Temperature performance Cycle life Unit Wh cost

Sodium-ion batteries

lithium iron phosphate battery

Lead acid battery

Comparison of unit Wh cost of battery cells

[It is expected that the unit Wh cost of sodium ion batteries will be about 30%~50% lower than that of lithium iron phosphate batteries in the future]

Current lithium battery

Current sodium electricity

Future sodium electricity

30%~50%

positive electrode

Negative electrode

Electrolyte

lack of mutual understanding

Collecting fluid

Other

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Solution

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