What specifications you look for, when you choose the batteries for a photovoltaic application? Also explain what characteristics does automobile batteries generally require?

Suppose you wanted to make a 1.00-V cell using copper as one of the electrode materials. Of the electrodes listed in Table 13.1, which would provide a cell potential closest to 1.00 V when coupled with copper? What is the anode and what is the cathode in your cell?

To enable continuous power even during night, you would need to have a regular 100 Ah, 12 V lead acid battery (you do not use much electricity in your small cottage).   Image: Wikimedia Commons, CC BY 2.0 However, you happen to have an old empty well in your backyard and you start to think if you could somehow utilize that. After all, batteries do not last forever and you would like to find a more sustainable solution.    Image: Pxhere.com, CC0   Lets imagine that you could rig a gravitational energy storage by hanging a suitable weight on a cable and linking this cable to a motor-generator: if surplus electricity is available, the motor would lift the weight upwards in the well. Then, when electricity is needed, the weight would drop downwards and rotate the generator to produce electricity.   Assumptions: The available well depth is 10 m, i.e. the maximum height difference you can use for the gravitational energy storage is 10 m. You can neglect all energy losses, friction, weight…