BioSolar Develops Second Batch 21700 Lithium-Ion Batteries

BioSolar Corporation, a US developer of energy storage technology and materials, announced that it has started to produce and test its second batch of commercial-grade prototype 21700 lithium-ion batteries with the help of its South Korean technology partner TopBattery, according to foreign media reports.

After completing the test, prototype batteries will be sent to potential manufacturing and development partners for internal qualification testing and analysis. BioSolar's core focus is to apply its proprietary additive technology to the development of new silicon negative-ion lithium-ion batteries, first developing 21700 lithium batteries for power tools.

It is understood that the company is currently preparing two different models of commercial-grade 21700 prototype batteries. The first is based on the use of a silicon alloy anode material composed of Si particles (Si-MP), and the second is based on the amount of Si nanoparticles (Si-NP) used as a pure silicon anode material. The main difference between these two is that the size of the Si-MP particles is much larger than the other one.

"BioSolar has made significant progress towards its goal of developing technologies to increase the storage capacity, lower the cost and extend the life of lithium-ion batteries," said Dr. David Lee, CEO of the company. "The objectives for the majority of consumer and commercial energy storage applications in high growth markets depend on the advancement of battery technologies. This clear trend led us to transition our focus and technology to meet the needs of the electric vehicle category - one of the largest and most exciting market opportunities on the horizon."

With the development of battery technology and the feasibility of applications in power tools, BioSolar plans to use the knowledge gained from the above battery design and manufacturing to produce the next generation of high-energy high-power lithium-ion batteries for electric vehicles. Founded with the vision of developing breakthrough energy technologies, the company's previous successes include the world's first UL approved bio-based back sheet for use in solar panels.

A lithium-ion battery contains two major parts, a lithium-filled cathode, and a lithium-receiving anode, that function together as the positive and negative sides of the battery. BioSolar is developing innovative technologies that will enable the use of inexpensive silicon as the anode material to create next-generation high energy and high-power lithium-ion batteries for electric vehicles.

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