An Apparatus and Associated Methods for Electrical Storage

A method of making an apparatus, the method comprising:

• forming a proton battery comprising first and second electrodes configured to form an electrode junction with one another at an interface thereof, the electrode junction configured to generate protons in the presence of water to produce a potential difference between the first and second electrodes, the proton battery further comprising respective charge collectors in contact with the first and second electrodes;
• and
• forming a casing for the proton battery, the casing configured to inhibit exposure of the electrode junction to water from the surrounding environment when the proton battery is contained within the casing, the casing comprising a pair of electrical terminals electrically connected to the respective charge collectors of the proton battery such that the potential difference between the first and second electrodes can be used to power an external circuit,
• wherein the proton battery is formed as a continuous strip of material, and wherein the casing comprises an opening configured to enable a length of the continuous strip to be extracted from the casing and exposed to water from the surrounding environment to produce the potential difference.

A method of using an apparatus,

• the apparatus comprising a proton battery and a casing for the proton battery, the proton battery comprising first and second electrodes configured to form an electrode junction with one another at an interface thereof, the electrode junction configured to generate protons in the presence of water to produce a potential difference between the first and second electrodes, the proton battery further comprising respective charge collectors in contact with the first and second electrodes;
• the casing configured to inhibit exposure of the electrode junction to water from the surrounding environment when the proton battery is contained within the casing, the casing comprising a pair of electrical terminals electrically connected to the respective charge collectors of the proton battery such that the potential difference between the first and second electrodes can be used to power an external circuit,
• wherein the proton battery is formed as a continuous strip of material, and wherein the casing comprises an opening configured to enable a length of the continuous strip to be extracted from the casing and exposed to water from the surrounding environment to produce the potential difference,
• the method comprising extracting a length of the continuous strip from the casing via the opening to expose the electrode junction to water from the surrounding environment and produce a potential difference between the first and second electrodes.