▎ 摘　　要

NOVELTY - An apparatus has a charge collector (207a), an ionic layer (204) which is in contact with a graphene oxide (202) and a conductive material (203), graphene oxide configured to generate protons in presence of water provided on the collector and a conductive material (203) having a lower work function than the collector spaced apart from the collector. The ionic layer comprises a room temperature ionic fluid and a solidifying material which provides for the ionic layer to be solid. The ionic layer configured to absorb water from a surrounding environment (205). USE - Apparatus e.g. battery, capacitor, supercapacitor, battery-capacitor hybrid, electronic device, portable electronic device, portable telecommunications device, personal digital assistant, mobile phone, smartphone, phablet, tablet, laptop computer, desktop computer, smartwatch, smart eyewear, electronic watch, wireless sensor, electrochemical sensor, wearable device, radio frequency identification tag, electrochromic device, humidity sensor and module (all claimed). ADVANTAGE - The apparatus provides simple and scalable manufacture technique, and is economical. DETAILED DESCRIPTION - An apparatus has a charge collector, an ionic layer which is in contact with a graphene oxide and a conductive material, the graphene oxide configured to generate protons in the presence of water provided on the collector and the conductive material having a lower work function than the collector spaced apart from the collector. The graphene oxide extends from the collector to be in contact with the material at an interface (206). The ionic layer comprises a room temperature ionic fluid and a solidifying material which provides for the ionic layer to be solid at room temperature. The ionic layer configured to absorb water from a surrounding environment (205) to deliver water to the apparatus. An INDEPENDENT CLAIM is included for manufacture of the apparatus. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the apparatus. Apparatus (201) Graphene oxide (202) Conductive material (203) Ionic layer (204) Surrounding environment (205) Interface (206) Charge collectors (207a,207b)