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Batteries made from seawater charge 80% in 5 minutes, safer


On December 18, IBM announced that it had developed a new battery technology using materials extracted from seawater.

IBM’s new battery design will not use the rare materials Cobalt and nickel in the cathode. In addition, the electrolyte solution has also been replaced by a completely new compound, which is capable of preventing dendrite phenomenon, the reason why lithium-ion batteries are prone to short-circuiting.

New battery technology uses materials extracted from seawater

IBM says lab tests show that its new seawater battery technology has many advantages over lithium-ion batteries, including:

  • Cheaper: The new battery will use materials extracted from seawater instead of cobalt, nickel and some other heavy metals to save a lot of costs.
  • Faster charging: The SOC charging test shows that a new battery can charge up to 80% of capacity in less than 5 minutes.
  • The amount of energy in a unit of battery volume is higher: The new battery reaches more than 10,000 kilowatts / liter, higher than the energy level of the most “good” lithium-ion battery at the present time, more than 800 kilowatt hours / liter.
  • Excellent performance: According to the charge / discharge ratio, the new battery reaches over 90%.
  • Safer than current lithium-ion technology.

Currently, IBM is cooperating with Mercedes-Benz (Daimler AG), battery electrolyte supplier Central Glass and battery manufacturer Sidus to trade for its new battery design made from seawater. IBM hopes it will be able to launch its first battery prototype in a year, starting now.

  • Scientists have successfully created an “reverse solar cell” that creates electricity in the dark

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