Southwest Research Institute

Wuwei Liang

Kwai S Chan

Candace K Chan

Michael A Miller

Narayana Sastry Cheruvu

The present disclosure is directed at clathrate (Type I) allotropes of silicon, germanium and tin. In method form, the present disclosure is directed at methods for forming clathrate allotropes of silicon, germanium or tin which methods lead to the formation of empty cage structures suitable for use as electrodes in rechargeable type batteries.

Clathrate allotropes for rechargeable batteries

The present disclosure is directed at an electrode and methods for forming such electrode for a battery wherein the electrode comprises silicon clathrate. The silicon clathrate may include silicon clathrate Sicontaining an arrangement of 20-atom and 24-atom cages fused together through 5 atom pentagonal rings and/or silicon clathrate Sicontaining an arrangement of 20-atom and 28-atom cages fused together through 5 atom pentagonal rings. The silicon clathrate may be present as particles having a largest linear dimension in the range of 0.1 &#x3bc;m to 100.0 &#x3bc;m.

Silicon clathrate anodes for lithium-ion batteries

The present invention relates to corrosion resistance coatings suitable for elevated temperature applications, which employ compositions of iron (Fe), chromium (Cr), nickel (Ni) and/or aluminum (Al). The compositions may be configured to regulate the diffusion of metals between a coating and a substrate, which may then influence coating performance, via the formation of an inter-diffusion barrier layer. The inter-diffusion barrier layer may comprise a face-centered cubic phase.

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Wuwei Liang