Nickel–metal hydride battery and electrical grid: what they have in common

1. Step 1. Nickel–metal hydride battery — is made of — Rare-earth metals. The anode is a rare-earth alloy.
2. Step 2. Rare-earth metals — is material for — Neodymium magnet. Neodymium.
3. Step 3. Neodymium magnet — is part of — Electric car. Synchronous traction motors use neodymium magnets.
4. Step 4. Electric car — uses — Charging station. It charges at charging stations.
5. Step 5. Charging station — uses — Electrical grid. Powered from the grid.

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