Electrochemical energy storage devices
AssigneeAmbri Inc.
InventorsDavid J. Bradwell, Hari Nayar
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Abstract
Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).
Claims16
A battery comprising a negative electrode, a positive electrode, an electrolyte disposed between said negative and positive electrodes, and a solid or semi-solid intermetallic layer comprising a mutual reaction compound of the negative electrode and the positive electrode formed during discharging at a plurality of interfaces between the positive electrode and the electrolyte, wherein the battery has a first potential difference between the negative and positive electrodes at a first temperature that is less than 50° C. and a second potential difference between the negative and positive electrodes at a second temperature of at least about 250° C., wherein at the second temperature the positive electrode, electrolyte and negative electrode are liquid, wherein the second potential difference is greater than the first potential difference.
A battery comprising a container including a negative electrode, a positive electrode and an electrolyte disposed between said negative and positive electrodes, wherein the battery has a first potential difference between the negative and positive electrodes at a first temperature that is less than about 50° C. and a second potential difference between the negative and positive electrodes at a second temperature of at least about 250° C., wherein the second potential difference is greater than the first potential difference, wherein at the second temperature the positive electrode, electrolyte and negative electrode are liquid, wherein during charge/discharge the battery undergoes sustained self-heating, and wherein the container has a surface area-to-volume ratio of less than or equal to about 10 m−1.
Dependencies are inferred from the claim text.