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
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).
대표청구항▼
1. 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 dischargin
1. 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. 2. The battery of claim 1, wherein the first potential difference is about 0 volts. 3. The battery of claim 1, wherein the first potential difference is less than or equal to about 0.5 volts. 4. The battery of claim 1, wherein said second potential difference is greater than 0 volts. 5. The battery of claim 1, wherein said second potential difference is greater than 0.5 volts. 6. The battery of claim 1, wherein said second potential difference is greater than 0.8 volts. 7. The battery of claim 1, wherein said second potential difference is greater than or equal to 0.9 volts. 8. The battery of claim 1, wherein the negative electrode comprises lithium, sodium, potassium, magnesium and/or calcium. 9. The battery of claim 1, wherein the positive electrode comprises antimony, tin, tellurium, bismuth and/or lead. 10. The battery of claim 1, wherein the electrochemical energy storage device is comprised in an array of energy storage devices as part of an energy storage system. 11. The battery of claim 10, wherein the electrochemical energy storage device is an energy storage cell, and the energy storage system comprises a plurality of energy storage cells. 12. The battery of claim 1, wherein the intermetallic layer has a higher viscosity or density than positive electrode. 13. 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. 14. The battery of claim 13, wherein the container contains one or more electrochemical cells, wherein an individual cell of the one or more electrochemical cells includes the negative electrode, the positive electrode and the electrolyte. 15. The battery of claim 13, wherein the container is maintained at a temperature greater than or equal to about 250° C. 16. The battery of claim 13, wherein (i) the negative electrode comprises lithium, sodium, potassium, magnesium and/or calcium, and/or (ii) the positive electrode comprises antimony, tin, tellurium, bismuth and/or lead.
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