![]() ![]() ![]() In 2017, John Goodenough, the co-inventor of Li-ion batteries, unveiled a solid-state glass battery, using a glass electrolyte and an alkali-metal anode consisting of lithium, sodium or potassium. In 2013, researchers at the University of Colorado Boulder announced the development of a solid-state lithium battery, with a solid composite cathode based on an iron- sulfur chemistry, that promised higher energy capacity compared to already-existing SSBs. At the same time, Volkswagen began partnering with small technology companies specializing in the technology.Ī series of technological breakthroughs ensued. In 2012, Toyota soon followed suit and began conducting experimental research into solid-state batteries for applications in the automotive industry in order to remain competitive in the EV market. The car was meant to showcase the company's diversity of electric-powered cells in the application, and featured a 30 kWh lithium metal polymer (LMP) battery with a polymeric electrolyte, created by dissolving lithium salt in a co-polymer ( polyoxyethylene). In 2011, Bolloré launched a fleet of their BlueCar model cars, first in cooperation with carsharing service Autolib, and later released to retail customers. With this, bulk solid-ion conductors could finally compete technologically with Li-ion counterparts, leading to the modern era of solid-state research.Ĭommercial research and development since 2010 Īs technology advanced into the new millennium, researchers and companies in the automotive and transportation industries experienced revitalized interest in solid-state battery technologies. demonstrated the first solid-electrolyte, Li 1.5Al 0.5Ge 1.5(PO 4) 3 (LAGP), capable of achieving a bulk ionic conductivity in excess of liquid electrolyte counterparts at room temperature. In 2011, the landmark work of Kamaya et al. While LiPON was successfully used to make thin film lithium-ion batteries, such applications were limited due to the cost associated with deposition of the thin-film electrolyte, along with the small capacities that could be accessed using the thin film format. A new class of solid-state electrolyte developed by the Oak Ridge National Laboratory, Lithium phosphorus oxynitride (LiPON), emerged in the 1990s. However, many of these systems commonly required operation at elevated temperatures, and / or were expensive to produce, enabling only limited commercial deployment. poly(ethylene) oxide (PEO), and inorganics such as NASICON. This excitement for solid-state electrolytes manifested in the discovery of new systems in both organics, i.e. Most immediately, molten sodium / β - alumina / sulfur cells were developed at Ford Motor Company in the US, and NGK in Japan. In 1967, the discovery of fast ionic conduction β - alumina for a broad class of ions (Li+, Na+, K+, Ag+, and Rb+) kick-started excitement for and the development of new solid-state electrochemical devices with increased energy density. ![]() īy the late 1950s, several silver-conducting electrochemical systems employed solid electrolytes, but such systems possessed undesirable qualities, including low energy density and cell voltages, and high internal resistance. History īetween 18, Michael Faraday discovered the solid electrolytes silver sulfide and lead(II) fluoride, which laid the foundation for solid-state ionics. Challenges to widespread adoption include energy and power density, durability, material costs, sensitivity and stability. Solid-state technology used in these batteries is potentially safer, with higher energy densities, but at a much higher cost. Solid-state batteries have found use in pacemakers, RFID and wearable devices. Materials proposed for use as solid electrolytes in solid-state batteries include ceramics (e.g., oxides, sulfides, phosphates), and solid polymers. Solid-state technology batteries can provide potential solutions for many problems of liquid Li-ion batteries, such as flammability, limited voltage, unstable solid-electrolyte interphase formation, poor cycling performance and strength. Developments in the late 20th and early 21st century have caused renewed interest in solid-state battery technologies, especially in the context of electric vehicles, starting in the 2010s. ![]() While solid electrolytes were first discovered in the 19th century, several drawbacks have prevented widespread application. ( July 2019)Ī solid-state battery deploys solid-state technology using solid electrodes and a solid electrolyte, instead of the liquid or polymer gel electrolytes found in lithium-ion or lithium polymer batteries. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. This article's lead section may be too short to adequately summarize the key points. ![]()
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