Working with Nextval Inc., Lawrence Berkeley National Laboratory (LBNL) developed a Conducting Polymer Binder for high-capacity lithium-ion batteries. With a focus on enabling smaller, lighter, and cheaper batteries, LBNL and Nextval researchers developed a new anode (negative electrode) material that is strong, elastic, porous, highly conductive, and can boost power storage capacity by 30%. The elastic material stretches during the expansion of silicon particles as the battery charges, and contracts during discharge—giving silicon anodes the flexibility to “breathe.” The electronically-conductive binder for silicon anodes triples the energy of current graphite anodes with much improved cycle life. The binder was recognized for its progress in the industry and received a 2013 R&D 100 Award.
Positive Impact
Conducting Polymer Binder is used in rechargeable batteries and boosts storage capacity. Receives 2013 R&D 100 Award.
Location
California
Partners
Lawrence Berkeley National Laboratory, Nextval Inc.
EERE Investment
$1.2 million over four years
Clean Energy Sector
The Vehicle Technologies Office (VTO) develops and deploys efficient and environmentally friendly highway transportation technologies that will enable America to use less petroleum. These technologies will provide Americans with greater freedom of mobility and energy security, while lowering costs and reducing impacts on the environment.
The Office of Energy Efficiency and Renewable Energy (EERE) success stories highlight the positive impact of its work with businesses, industry partners, universities, research labs, and other entities.