IBM research - Free of Heavy Metals, New Battery Design Could Alleviate Environmental Concerns

Toujours du Lithium (un métal alcalin), numéro atomique 3, cad le 3è derrière l'hydrogène et l'hélium.  Un élément atomique très répandu mais qui a mauvaise presse.
Mais plus de nickel ou cobalt (respectivement avec le NiMH, nickel-hydrure métallique et le cobalt super rare).

Le pitch de leur batterie "liquide", qui peut être extraite de l'eau de Mer:

  • Lower cost: The active cathode materials tend to cost less because they are free of cobalt, nickel, and other heavy metals. These materials are typically very resource-intensive to source, and also have raised concerns over their sustainability.
  • Faster charging: Less than five minutes required to reach an 80 percent state of charge (SOC), without compromising specific discharge capacity.
  • High power density: More than 10,000 W/L. (exceeding the power level that lithium-ion battery technology can achieve).
  • High energy density: More than 800 Wh/L, comparable to the state-of-art lithium-ion battery.
  • Excellent energy efficiency: More than 90 percent (calculated from the ratio of the energy to discharge the battery over the energy to charge the battery).
  • Low flammability of electrolytes

A suivre... c'est cool, en ce moment je trouve qu'il y a pas mal de nouveautés côté batteries.

Free of Heavy Metals, New Battery Design Could Alleviate Environmental Concerns

ibm.com heavy-metal-free-battery.jpg
ibm.com

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