Japanese Paleolithic are a technology associated in the rest of the world with the beginning of the Neolithic around 10,000 BC. It is not known why such tools were created so early in Japan. Because of this originality, the Japanese Paleolithic period in Japan does not exactly match the traditional definition of Paleolithic based on stone technology (chipped stone tools). Japanese Paleolithic tool implements thus display Mesolithic and Neolithic traits as early as 30,000 BC. The Paleolithic populations of Japan, as well as the later Jōmon populations, appear to relate to an ancient Paleo-Asian group which occupied large parts of Asia before
Research in lithium-ion batteries and heating that can ignite the flammable electrolyte. Lithium metal remains a subject of interest because of its potential to increased energy density by 2x or more. In 2015, an MIT spinoff company, SolidEnergy, demonstrated a battery that uses a thin sheet of lithium-metal foil. The company claimed to have solved multiple issues, including safety and lifetime. SolidEnergy uses a combination of solid and liquid electrolytes. The solid electrolyte is applied to the lithium-metal foil—the ions don’t have far to travel through this thin material, so it does not matter that they move relatively slowly. Once through the solid electrolyte,