Silicon’s high theoretical charge capacity has inspired a tremendous amount of research into the possibility of using it to replace at least part of the graphite in lithium-ion battery anodes. However, Si presents major technical challenges. It can undergo a volume change of up to 300% during charging and discharging, limiting cycle life. Michigan-based Paraclete… Read more »
Search Results Found For: "silicon anodes"
Researchers find less than 1% volume expansion in pouch cells with E-magy’s silicon-dominant anodes
Researchers from the German research institute ZSW and the Dutch battery company E-magy have studied cell expansion in lithium-ion pouch cells with silicon-dominant anodes. The research assessed volume expansion in cells with NMC cathodes and E-magy’s nano-porous silicon anodes through 100 cycles. “E-magy has developed a nano-porous silicon which absorbs the expansion in the nano… Read more »
New silicon material improves uptake of lithium ions in anodes
Dutch firm RGS has introduced a nano-porous silicon material called E-magy that’s designed to be used in the anodes of Li-ion batteries. The company claims its material can increase battery anode capacity by up to 50%. Battery boffins have long dreamed of replacing carbon material in anodes with silicon, but in practice the amount of… Read more »
Sila Nano raises $70 million in funding for silicon-dominant battery anodes
Battery specialist Sila Nanotechnologies has received $70 million in Series D funding from Sutter Hill Ventures, Next47 (backed by Siemens), and Amperex. Sila Nano will use the funding for the development and commercialization of its silicon-dominant anodes. Overall, Sila has raised $125 million from investors including Bessemer Venture Partners, Chengwei Capital, Matrix Partners, Samsung, and… Read more »
Amprius demonstrates new tool for manufacturing of silicon nanowire anodes
Battery manufacturer Amprius has demonstrated a new system for inline, continuous, and roll-to-roll production of three-dimensional silicon nanowire anodes that it says will enable it to scale up manufacturing more quickly. Silicon is widely considered to be the next big thing in anode technology – battery-builders and automakers (including Tesla) are working on ways to… Read more »
DOE-supported research projects seek to commercialize silicon-based anodes
The DOE is supporting six applied battery research projects, with the objective of developing cells that provide energy density of more than 200 Wh/kg, along with long cycle life and excellent abuse tolerance. All six projects are using some form of silicon-based material for the anode. A team led by the Argonne National Laboratory is… Read more »
New process extracts multiple battery anodes from a wafer of silicon
The process uses silicon to replace graphite as an element in Li-ion cells, which could lead to longer-lasting, more powerful batteries.
JR Energy Solution opens foundry in Korea to make electrodes using Enevate’s silicon battery tech
JR Energy Solution (JR ES) has opened an electrode foundry in South Korea to make electrodes using Enevate‘s silicon-dominant battery technology. JR ES manufactures lithium-ion battery electrodes and offers battery cell makers and other partners custom electrodes and cell solutions. Enevate claims its silicon-dominant battery enables charging speeds up to 10 times faster than those… Read more »
Ferroglobe and Coreshell to produce battery-grade metallurgical silicon for EVs
Ferroglobe, a producer of silicon metal and ferroalloys, and Coreshell, a US-based battery technology company, have signed a memorandum of understanding under which they plan to produce battery-ready metallurgical silicon for the development of low-cost, high-range EV batteries. Automakers are keen to use more silicon in anodes, because it can potentially store up to 10… Read more »
OneD and Koch Modular partner to produce silicon-graphite anode materials for EV batteries
OneD Battery Sciences, a nanotechnology startup, and Koch Modular Process Systems, a process engineering design and modular construction company, have announced a strategic partnership to mass-produce silicon-graphite anode materials for EVs. Koch Modular’s silane gas manufacturing expertise and OneD’s SINANODE technology transform silane into nano-silicon in EV cell-qualified graphite anodes. This partnership will process and… Read more »