Quantumscape Batteries – an Emerging Answer

Dean Sigler Batteries, Sustainable Aviation Leave a Comment

Hiding in plain site next to the San Jose, California International Airport, Quantumscape has been quietly developing a solid-state battery now emerging and trending toward mass production.  With backing from Volkswagen, Bill Gates and a founding member of Tesla, the battery company would make big splash if it used a liquid electrolyte.  It doesn’t.  Wired goes a bit dramatic in describing the faults of batteries with liquid electrolytes.  “IF ELECTRIC VEHICLES are ever going to fully supplant gas guzzlers on the world’s roads, they’re going to need an entirely new type of battery. Despite steady improvements over the past decade in the energy density and lifetimes of lithium-ion batteries, the cells in new EVs still lag behind internal combustion engines …

All-Electron Battery – Stanford Strikes Again

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

With recent news of a solid-state battery coming for the labs of Yi Cui, a second solid-state solution seems to follow from another Stanford Laboratory.  The All-Electron Battery, funded at least partly by an ARPA-E grant that underwrote the program from 2010 to 2012, has fostered a startup, QuantumScape. Starting from the stated need for a battery “with twice the energy storage of today’s state-of-the-art Li-Ion battery at 30% of the cost,” ARPA-E worked with the premise that Stanford was “developing an all-electron battery that would create a completely new class of energy storage devices for EVs. Stanford’s all-electron battery stores energy by moving electrons rather than ions. Electrons are lighter and faster than the ion charge carriers in conventional …

Will VW Take on Tesla?

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Volkswagen just bought a five-percent stake in a startup company called QuantumScape, a commercial spinoff of work done at Stanford University’s Nanoscale Prototyping Laboratory for Energy Conversion and Storage.  The Labroratory’s head, Fritz B. Prinz, Finmeccanica Professor of Engineering and Robert Bosch Chairman of Mechanical Engineering, explains: “Our team creates, models, and prototypes nanoscale structures to understand the physics of electrical energy conversion and storage. We are exploring the relation between size, composition, and the kinetics of charge transfer. We are also interested in learning from nature, in particular by studying the electron transport chain in plant cells.” (Note that the QuantumScape web site is curiously without detail, showing only four pretty pictures and making three or four non-controversial statements. …