-The new technology of solid-state battery can double the energy density of lithium-ion battery

The new technology of solid-state battery can double the energy density of lithium-ion battery
author:enerbyte source:本站 click486 Release date: 2023-02-28 09:04:16
abstract:
Researchers at Deakin University in Australia have shown that they have now managed to use common industrial polymers to produce solid electrolytes, thus opening the door for doubling the energy density of solid-state lithium-ion batteries, which will not explode or catch fire when overheated....

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Researchers at Deakin University in Australia have shown that they have now managed to use common industrial polymers to produce solid electrolytes, thus opening the door for doubling the energy density of solid-state lithium-ion batteries, which will not explode or catch fire when overheated.

Dr. FangfangChen and Dr. Wang Xiaoen of Deakin Institute of Advanced Information claimed that the breakthrough had been achieved; In the scientific community, we have completed the first clear and useful example of liquid-free efficient lithium ion transportation”.

The Deakin University team showed that only existing commercial polymers were used in the new process, which means that industrial production should be able to“ It's within reach” To carry out. At this stage, they have now tested the button battery, which is the same size as the watch battery, but the team is now building a bag battery for mobile phones, and once successful, they will find business partners to bring these solid-state batteries to the market.

The team believes that in addition to making the battery safer, the solid polymer electrolyte will eventually make the battery use lithium metal anode. This will be a big news in the battery industry. Recently, in Chemical Trends, lithium anode was described as“ The key to breaking the energy density bottleneck of lithium ion chemistry at that time”.

Dr. Wang said that this might be a way to double the energy density of lithium-ion batteries. In the commercial environment, the current peak energy of lithium-ion batteries reaches about 250Wh/kg (in Tesla's Model 3 battery pack). Raising it to 500Wh/kg can expand the range of electric vehicles, and perhaps use smaller, cheaper and lighter battery packs.

This new technology uses a solid polymer material that is weakly bound to lithium ion to replace the volatile liquid solvent commonly used as the electrolyte of the battery cell at that time, and the liquid electrolyte is the flammable part of the battery. Dr. Chen said:“ If the occupation makes use of our findings, I will see a future. For example, battery-related equipment can be safely installed in aircraft luggage. Perhaps electric vehicles will not pose a fire risk to passengers or emergency service personnel as now.

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