NEO Battery Materials, a low-cost silicon anode materials developer, announced the launch of an advanced high-performance silicon anode product with breakthrough battery capacity. Alongside its core focus on electric vehicles (EVs), the company is expanding its strategic downstream focus to the space and eVTOL industries through solid-state batteries.
Last summer, NEO announced coating technology innovations that improved battery cycling performance and Coulombic efficiency. After passing stringent validation tests and exceeding performance thresholds, NEO Battery is pleased to introduce the most advanced silicon anode product, the NBMSiDE P-300.
Using P-300 products, NEO further achieved a technological milestone of manufacturing silicon-graphite composite (mixed) anodes with top-industry battery capacity results. Initial P-300 silicon-graphite anodes demonstrate a 500 mAh/g capacity by adding under 7% of silicon. This represents a 43% higher initial capacity than traditional graphite anodes, saving 50% of materials compared to competitors’ silicon anodes.
P-300 also exhibits good compatibility with graphite and an uncomplicated silicon-graphite ratio control. The P-300 silicon-graphite anodes can easily achieve an 800 mAh/g capacity — a 130% higher initial capacity than graphite anodes. These results signal that P-300 is a strongly favourable candidate for commercial graphite anodes in large cell formats.
NBMSiDE P-300 is now under the optimization process for pilot production and implementation within full cell2 designs and tests.
Expanding to space and eVTOLs
Recent advancements in NBMSiDE P-300 reinforce that NEO’s products are highly applicable and necessary for solid-state batteries. Solid-state batteries are recognized as the most practical battery systems for the space and electric vertical take-off and landing (eVTOL) industries due to thermal stability with a wide operating temperature range, non-flammable safety, and high energy density.
As NEO’s products are based on metallurgical, micron-sized silicon with polymer coatings, reducing silicon particle fracturing and adverse side reactions at the electrolyte-electrode interface is essential to mitigate contact loss during cycling tests in solid-state batteries. P-300’s enhanced conductivity and improved lithium-ion diffusion would provide stable performance and high compatibility between pure silicon anodes in solid-state batteries.
Filed Under: Batteries, Technology News