On February 28, 2017 Goodenough and his team at the University of Texas published a paper in the journal "Energy and Environmental Science" on their demonstration of a glass battery, a low-cost all-solid-state battery that is noncombustible and has a long cycle life with a high volumetric energy density, and fast rates of charge and discharge. Instead of liquid electrolytes, the battery uses glass electrolytes that enable the use of an alkali-metal anode without the formation of dendrites. However, this paper was met with widespread skepticism by the battery research community and remains controversial after several follow-up works. The work was criticized for a lack of comprehensive data, spurious interpretations of the data obtained, and that the proposed mechanism of battery operation would violate the first law of thermodynamics.