no 5 alkaline battery

New electrolyte technology is expected to extend the cycle life of metal no 5 alkaline battery

People's requirements for no 5 alkaline battery are not high: provide energy for as long as needed, charge quickly, and don't suddenly catch fire, but a series of mobile phone battery fires in 2016 shook consumers' confidence in lithium-ion no 5 alkaline battery. Since their introduction in the 1980s, lithium-ion no 5 alkaline battery 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 no 5 alkaline battery 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 no 5 alkaline battery. Solid-state no 5 alkaline battery are inherently safer and more energy dense than existing lithium-ion no 5 alkaline battery, which rely on flammable liquid electrolytes to quickly transfer chemical energy stored in molecular bonds into electrical energy. Cornell University researchers transformed liquid electrolytes into solid polymers inside electrochemical cells, taking advantage of the properties of liquids and solids to overcome key limitations that currently affect battery design.

"Imagine a glass full of ice cubes," said Qing Zhao, a postdoctoral researcher and lead author of the study. "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. The same concept can be used in no 5 alkaline battery to promote high-rate ion transfer from the solid surface of the battery electrode to the electrolyte without the need for flammable liquids."

The key to the scheme is to introduce special molecules that can initiate polymerization within the electrochemical cell without compromising other functions of the battery. If the electrolyte is a cyclic ether, the initiator can be designed to tear the ring apart, thereby generating reactive monomer chains that bind 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 battery safety, solid-state electrolytes could also help enable next-generation no 5 alkaline battery to use metals such as lithium and aluminum as anodes, allowing for greater energy storage than today's most advanced battery technology. In this case, solid electrolytes prevent the metal from forming dendrites, which can cause battery short circuits, overheating and failure. Despite the obvious advantages of solid-state no 5 alkaline battery, 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 battery thermal changes, eliminating the need for battery cooling.

According to the researchers, the field technology for producing new polymer electrolytes is expected to extend the cycle life and charging capacity of high-energy-density rechargeable metal no 5 alkaline battery.

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