Journal Article 7440-57-5 7782-42-5 Dimethylpolysiloxanes Elastomers Gold Graphite Li-ion batteries Polymers Research Support, Non-U.S. Gov't double photolithography elastomeric polymer mogul-patterned substrate nickel-rich cathodes phase transitions with solid-state reaction reduced graphene oxide chemiresistor soft lithography spatial distribution of local chemical compositions within the particles stretchable synthesis during calcination