Our country is the first one to produce high performance lead-carbon batteries with rice husk

The team of Linhaibo of the School of Chemistry of Jilin University took the lead in the international production of high-performance battery-grade carbon materials using rice husks, and used this material to develop cost-effective lead-carbon batteries. Its performance has reached the international advanced level. A few days ago, the scientific research results have been built 100 tons of Super permittivity carbon and a thousand tons of battery carbon production line.

Lead acid battery is one of the most widely used batteries. In 2005, scientists combined lead-acid batteries with super capacitors and invented SUPERBATTERIES(lead-carbon batteries), which significantly improved their performance compared to traditional lead-acid batteries. The lead-carbon battery is known as the new generation lead-acid battery, and it is a research hotspot in the field of lead-acid battery.

Linhaibo said that the rice husk contains silicon dioxide and carbon elements. After the Silicon dioxide is removed, porous charcoal can be formed. After further activation, it becomes an extremely valuable activated carbon material. "This kind of activated carbon has a multi-stage porous structure with large holes, mesoporous and microporous, and has excellent electrochemical performance. "Only rice husks can bring such wonderful effects," he said. Other carbon materials such as coconut shells and palm shells that have been processed do not have such multistage pore structures.

After more than 10 years of hard work, the team has conquered key technologies such as the green preparation process of biomass rice-based electric carbon, rice-based battery carbon additives, and lead carbon battery negative poles, and developed a cost-effective lead carbon battery. Compared with ordinary lead-acid batteries, the cycle life of lead-carbon batteries is increased by 6 times, the charging speed is increased by 8 times, and the discharge power is increased by 3 times. At the same time, it has the advantage of low cost.

The lead-carbon battery has passed the test of the third party authority of the National Chemical Power Product Quality Supervision and Inspection Center. This achievement has published more than 50 papers in international core journals and applied for more than 20 invention patents.

This achievement has achieved a complete industrial chain of rice-based battery carbon materials, lead-carbon batteries, and product applications. It is mainly used in automotive starting and stopping power supply, automotive hybrid power, and energy storage.

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