www.architecturalrecord.com/articles/12718-earth-first

Aqueous Hybrid Ion “Saltwater” Battery
Aquion Energy
Pittsburgh
Aquion’s battery for grid-tied photovoltaic systems stores power by utilizing sodium-sulfate electrolytes rather than corrosive sulfuric acid or flammable lithium salts. These nonhazardous alternatives, including the attendant lithium manganese-oxide anode, are inexpensive, abundant, and safe to use. The battery contains no PVC and meets Cradle to Cradle standard.
Earth First!
November 1, 2016

On November 5, sustainable design resource BuildingGreen announced the 2017 winners of its Top 10 Green.