High Energy All-Solid State Li-ion Batteries
Abstract
University of Colorado Grant #: FA9453-15-1-0304 “High Energy All-Solid-State Li-ion Batteries” Abstract The recent Boeing, Tesla, and Chevy Volt battery fires are a reminder that the best engineered safety precautions may not be enough to tame the volatile and highly flammable organic liquid electrolytes used in today’s conventional Li-ion batteries. On the other hand, all-solid-state Li-ion batteries (SSLBs) can be cycled under much harsher conditions than conventional batteries simply because solid-state electrolytes (SSEs) are non-volatile and non-flammable. As a result, future energy storage systems incorporating the all solid-state rechargeable battery could eliminate many of the safety features and complex electronics currently required for lithium-ion batteries thereby greatly reducing the energy storage system mass and cost. The advantages of this beyond lithium-ion technology include robust performance at high temperature, higher energy density than thin-film solid-state batteries, zero leakage current because SSEs are pure ionic conductors, and long calendar life. The aim of this project is to deliver a high energy all-solid-state Li-ion battery that meets the performance standards of the commercial space, commercial terrestrial markets, as well as high performance space missions by developing a high specific energy, Si-Sn anode as an alternative to Li metal, and an energy dense solid-state composite cathode that utilizes an interfacial engineered NMC, and a low cost analogue to the Li10GeP2S12 superionic conductor. We investigate each battery component for an optimal full cell battery configuration by using a variety of in-situ and ex-situ techniques such as electrochemical impedance study (EIS) and transmission electron microscopy (TEM).
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 18, 2016
- Source ID
- FA94531510304
Entities
People
- Lee Sehee
Organizations
- Air Force Research Laboratory
- Regents of the University of Colorado
- United States Air Force