Lithium-ion batteries (LIBs) are used extensively in various applications such as mobile phones and portable computer. Silicon (Si) is regarded as a kind of promising anode material in LIBs because of its high theoretical capacity and low working potential. The major challenges related to Si ...
While on the other side, below 6 GHz band (sub-6 GHz) may further divide into two categories, less than 3 GHz frequency bands used by 3G/4G mobile communication system, whereas frequencies range above 3 GHz (3–6 GHz) has been now catered to the WLAN 5-GHz band (5.15–5.82 GHz) ...