Solid-state CR1632 battery technology has made a breakthrough, extending CR1632 battery life/improving charging capacity

Since its introduction in the 1980s, lithium-ion batteries have helped lead the development of modern portable electronics, but have been plagued by safety issues. As people's interest in electric vehicles grows, researchers and industry insiders are looking for technologies to improve rechargeable batteries that can safely and reliably power cars, self-driving cars, robots and other next-generation devices.

According to foreign media reports, a new study from Cornell University in the United States has improved the design of solid-state batteries. Solid-state batteries are inherently safer and have higher energy density than existing lithium-ion batteries, which rely on flammable liquid electrolytes to quickly transfer chemical energy stored in molecular bonds to electrical energy. Cornell University researchers converted liquid electrolytes into solid polymers inside electrochemical cells, taking advantage of the properties of liquids and solids to overcome key limitations that currently affect CR1632 battery design.

"Imagine a glass full of ice cubes. Some of the ice cubes touch the glass, but there are gaps. But if you fill the glass with water and freeze it, the interface is completely covered, and a strong bond is established between the ice cubes and the water in the glass," said Qing Zhao, a postdoctoral researcher and lead author of the study. "The same concept can be used in batteries to promote high-rate ion transfer from the solid surface of the CR1632 battery electrode to the electrolyte without the need for flammable liquids."

The key to the approach is to introduce special molecules that can initiate polymerization within the electrochemical cell without compromising other CR1632 battery functions. If the electrolyte is a cyclic ether, the initiator can be designed to tear the ring apart, creating chains of reactive monomers that bond together to produce long chain-like molecules with essentially the same chemical properties as the ether. Such strong polymers remain tightly connected at the metal interface, just like the ice cubes in the glass.

In addition to helping improve CR1632 battery safety, solid-state electrolytes could also help enable next-generation batteries to use metals such as lithium and aluminum as anodes, allowing for greater energy storage than today's most advanced CR1632 battery technology. In this case, solid electrolytes prevent the metal from forming dendrites, which can cause CR1632 battery short circuits, overheating and failure. Despite the obvious advantages of solid-state batteries, large-scale mass production has been hindered. High manufacturing costs and poor interface properties caused by previous designs have created significant technical obstacles. In addition, solid-state systems can stabilize CR1632 battery thermal changes, eliminating the need for CR1632 battery cooling.

According to the researchers, the field technology for producing new polymer electrolytes is expected to extend the cycle life of high-energy-density rechargeable metal batteries and improve charging capabilities.

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