Are alternative battery chemistries getting more patents?

Between 2012-2021, the number of patent families filed in CPC class H01M10/054,13which relates to alternative battery chemistries, has steadily increased. The trends follow those seen for redox flow and solid-state battery technology, with a steady growth in the number of patent families filed in this class.

Will CATL develop solid-state lithium batteries with lithium metal negative electrodes?

In January 2021, there were reports that CATL is developing solid-state lithium batteries with lithium metal negative electrodes, and that upon solving all technology / process issues, 400 Wh/kg energy density could be achieved.

What are alternative battery chemistries?

For example, sodium and aluminium chemistries provide two potential alternatives to traditional lithium-based battery chemistries.10  One reason for the interest in alternative battery chemistries is based on supply chain issues relating to lithium and its co-metals nickel, cobalt, and manganese.

Can sodium ion batteries replace lithium?

Although their charge densities tend to be lower than lithium-based batteries, sodium-ion batteries are well suited to use in static storage and low-cost electric vehicles, such as e-bikes, and may soon replace lithium as a preferred battery chemistry for these applications.

What is a solid state battery?

Solid State Batteries Solid state battery technology provides a promising means of overcoming some of the problems associated with traditional liquid electrolyte lithium batteries. Solid-state batteries use solid ceramic or polymer-based electrolytes instead of the traditional solvent-based liquid electrolytes.

Are RFBS a viable alternative to lithium-ion batteries?

In some applications, RFBs can also provide a safer, more durable, and more scalable alternative to lithium-ion batteries. Patent activity surrounding RFBs indicates that they are of increasing interest.