Energy storage: Difference between revisions

Energy storage (view source)

Revision as of 23:27, 4 November 2022

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 # To store energy in [[electric vehicles|electric vehicles]] without gasoline or diesel.
-==How much would be needed?==
+==Summary==
+{|class="wikitable"
+!Type
+!Metals of concern, and is there enough in the earth?
+!Other concerns
+!Energy footprint
+!Labor footprint
+|-
+|[[Lithium-ion batteries]]
+|Lithium: Just barely enough.<br />Cobalt: Not enough.
+|Lifespan and recyclability
+|To be determined
+|To be determined
+|-
+|[[Lead-acid batteries]]
+|Lead: Not enough.
+|Toxic
+|To be determined
+|To be determined
+|-
+|[[Iron redox flow batteries]]
+|Iron: There is plenty.
+|Not implemented commercially yet. Could be viable for grid storage but ''not'' vehicles.
+|To be determined
+|To be determined
+|-
+|[[Flywheels]]
+|Iron: There is plenty. But other rare metals are probably needed too. To be determined.
+|Only the highest-energy-density designs would be worthwhile, but would they work in vehicles?
+|To be determined
+|To be determined
+|-
+|[[Hydrogen gas]]
+|To be determined - how many rare metals would be needed for the [[electrolysis]] and the [[fuel cells]].
+|In the case of vehicles: Needs pressurized fuel tanks, which might come with safety issues and wouldn't be as energy-dense as gasoline tanks. Also, fuel cell energy losses are higher than batteries.
+|To be determined
+|To be determined
+|-
+|
+|}
+==How much storage would be needed?==
 ===Vehicles===
@@ Line 69: / Line 110: @@
 ===Hydrogen gas===
-[[Hydrogen gas]] does not occur in nature, but can be generated using green [[energy]] (by [[electrolysis]]).
+Energy can be used for making [[hydrogen gas]], and later the gas can be used for energy - either by combustion or by [[fuel cells]].
 ====Vehicles====