Ironically, today's most fashionable battery material, lithium, is the third-lightest element in that table and therefore one for which no such relativistic effects can be expected.

ECONOMIST: Einstein and car batteries

Beyond this eco-friendly element, Radiator Labs is integrating a phase change material into its product that can store energy and heat an apartment for up to four hours without assistance from the boiler.

ENGADGET

Normally the release of the Federal Reserve's Beige Book alone would give Wall Street plenty of material to obsess over, but on Wednesday there was the added element of a slew of scheduled comments by central bank officials.

FORBES: Magazine Article

Doping (adding the element niobium to the chemistry), as well as reducing the size of the material to nanoscale, makes it more conductive.

FORBES: Jump Start

Belonging to a class of worlds known as diamond planets, 55 Cancri e is thought to be rich in the element carbon, which can exist in a variety of structural forms such as graphite (the material used as pencil lead), graphene, or diamond.

BBC: Oddballs: The strange worlds beyond our Solar System