We Continue the Work of Those
Who Were the First.

  • Electrotechnics
  • Electrical Engineering
  • Light & Lighting
  • Power Engineering
  • Transportation
  • Automation
  • Communication
  • Smart Buildings
  • Industry
  • Innovation

Current issue

ELEKTRO 12/2021 was released on December 1st 2021. Its digital version will be available immediately.

Topic: Measurement, testing, quality care

Market, trade, business
What to keep in mind when changing energy providers

SVĚTLO (Light) 6/2021 was released 11.29.2021. Its digital version will be available immediately.

Fairs and exhibitions
Designblok, Prague International Design Festival 2021
Journal Světlo Competition about the best exhibit in branch of light and lighting at FOR ARCH and FOR INTERIOR fair

Professional literature
The new date format for luminaires description

GM unveils plans for lithium-metal batteries that could boost EV range

12. 3. 2021 | Engadget | www.engadget.com

GM has released more details about its next-generation Ultium batteries, including plans for lithium-metal (Li-metal) technology to boost performance and energy density. The automaker announced that it has signed an agreement to work with SolidEnergy Systems (SES), an MIT spinoff developing prototype Li-metal batteries with nearly double the capacity of current lithium-ion cells.

As a reminder, Li-metal batteries replace carbon anodes with lithium metal, allowing for lighter and more powerful cells. The challenge with the technology is increased resistance and "dendrite" filaments that tend to form on the anodes, making batteries short-circuit and heat up.

GM batteries

Previous lithium-metal batteries would only work when heated up to 175 degrees F, but SolidEnergy developed an electrolyte coating for lithium metal foil that works at room temperature. The company also created a non-flammable liquid electrolyte with lower resistance that won't create dendrites when in contact with lithium metal. Using those advances, it developed prototype batteries with the same storage capacity as a lithium-ion cell in half the size. The company has also developed AI-powered battery management software designed to optimize EV performance and safety.

Read more at Engadget

Image Credit: GM