Aluminum oxide, Aluminum capacitors, aluminum polymer capacitor, solid capacitor

 EEE-FK Series 63 V 100 uF Ø 10 x 10.2 mm 105 °C Low ESR SMT Electrolytic

https://www.futureelectronics.com/p/passives--capacitors--aluminum-electrolytic-capacitors/eee-fk1j101p-panasonic-3028632