All-solid state batteries using graphene-protected silicon anodes

Zenyatta Ventures Ltd.（Zenyatta）是一家新兴的加拿大高科技材料公司，总部位于 ** 西北安大略，正在开发一种独特的、与火有关的、流体衍生的石墨来源，这种石墨更容易转化为石墨烯，一种单原子层的碳。作为石墨烯解决方案提供商，**Zenyatta有兴趣在电池 ** 制造等大批量应用中实施他们的技术。Zenyatta与滑铁卢大学的Pope Group合作，在电化学设备中使用石墨烯和相关2D材料的专家，Zenyatta希望使用他们的石墨烯来解决与高容量硅阳极相关的挑战，这些阳极有望取代当今锂离子电池中的石墨阳极。该团队的目标是通过用石墨烯保护层包裹硅颗粒，并将这种石墨烯包裹的粉末与新兴的高导电性固态电解质相结合，来实现固态电池阳极。这些设计旨在允许硅膨胀和收缩，而不会导致外部石墨烯壳的变形，这将保持与内部硅颗粒的离子和电接触。预计这将消除与硅阳极和固态电解质相关的所有挑战-使这些有前途的技术成为可能。由此产生的阳极设计将被制造 ** 成全固态锂离子电池，用于性能评估和故障分析。该项目 ** 的成果将为电动汽车和其他旨在减少二氧化碳和其他污染物排放的绿色 ** 技术使用更安全、更持久的可充电电池铺平道路。该项目的成功 ** 将为加拿大创造更多的就业机会，并将推动加拿大的石墨经济，因为加拿大丰富的自然资源将产生高价值的产品。

Zenyatta Ventures Ltd. (Zenyatta) is an emerging Canadian high-tech materials company based in**Northwestern Ontario which is developing a unique, igneous-related, fluid-derived source of graphite that is**more easily converted into graphene, a single atomic layer of carbon. As a graphene solutions provider,**Zenyatta is interested in implementing their technology in high-volume applications such as battery**manufacturing. In collaboration with the Pope Group at the University of Waterloo, experts in the use of**graphene and related 2D material in electrochemical devices, Zenyatta would like to use their graphene to solve**the challenges associated with high-capacity silicon anodes which are expected to replace graphite anodes in**today's Li-ion batteries. The team aims to enable solid-state battery anodes by wrapping silicon particles with a**protective layer of graphene and interfacing this graphene-wrapped powder with emerging, high-conductivity,**solid-state electrolytes. The designs aim to allow the silicon to expand and contract without causing**deformation of the outer graphene shell which will maintain ionic and electrical contact with the silicon**particles within. This is expected to eliminate all of the challenges associated with silicon anodes and**solid-state electrolytes - enabling these promising technologies. The resulting anode designs will be fabricated**into all-solid state Li-ion batteries for performance evaluation and failure analysis. The results of this project**will pave the way to safer, longer lasting, rechargeable batteries for use in electric vehicles and other green**technologies which aim to reduce emissions of carbon dioxide and other pollutants. The success of the project**will open up more Canadian jobs and will provide a boost to the graphite economy in Canada as high-value**products are created from this abundant Canadian natural resource.