The COVID-19 crisis is bringing into the public eye the US’ dependency on importing goods, particularly batteries for advanced energy storage and electric vehicles, the CEO of a battery materials startup has said.

First developed by NASA, flow batteries are a potential answer to storing solar – and wind – for eight to 10 hours, far beyond what is commonly achieved today with lithium-ion. In the second of a two-part special report, Andy Colthorpe dives deeper into questions of bankability, market segmentation and manufacturing strategies with four very different providers of flow energy storage technology.

Over the past couple of weeks, various flow battery makers have touted new sales and supply chain agreements as the fledgling sector fights for a share of the stationary energy storage market.

A new solid state electrolyte for lithium batteries developed by Panasonic and nano-electronics and digital tech innovation hub imec has achieved “exceptionally high” ionic conductivity at room temperature.

The sale of an NEC Corporation business division involved in manufacturing lithium-ion batteries will have no material impact on the group’s activities in energy storage, according to a company spokesman.