![](https://i.imgur.com/CLvY2jA.png")
15-09-2021, 07:44 AM
Shermaine Ang
PUBLISHED SEP 14, 2021, 2:33 PM SGT
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Nanyang Technological University (NTU) scientists have invented a battery component that provides an added layer of protection to prevent short circuits, the main cause of fires in lithium-ion (Li-ion) batteries.
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The breakthrough by Professor Xu Zhichuan and his team from the School of Materials Science and Engineering comes on the heels of 42 PMD fires and 26 power-assisted bicycle fires reported in Singapore last year.
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The "anti-short layer" invented by the researchers can be easily added inside Li-ion batteries to prevent short circuits during charging.
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Most Li-ion battery fires are caused by a build-up of lithium deposits, or dendrites, that cross the separator between the positive (cathode) and negative (anode) electrodes of the battery when it is being charged. This causes a short circuit, which leads to a chemical fire, said Prof Xu.
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As it is not possible to prevent the formation of dendrites, the team made use of the dendrites' properties by coating an added layer of conductive material on the separator for the dendrites to connect with, said Prof Xu.
......
Once the dendrites connect with the layer, they will not be able to grow further and this prevents them from reaching the other side, he said.
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The professor said the technology is the first of its kind globally, and can be rapidly adopted in battery manufacturing.
......
The technology will cost around 5 per cent of the existing production cost of a Li-ion battery, said Prof Xu.
It is now awaiting a patent and is being commercialised by NTUitive, NTU's innovation and enterprise company.
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The invention will help to increase the safety and extend the lifespan of a Li-ion battery, which translates to longer driving ranges for electric vehicles and longer operational hours for battery energy storage solutions, Mr Lim added.
Dr Avishek Kumar, CEO and co-founder of V-Flow Tech, an energy storage technology firm, said: "This invention, which solves the most critical puzzle of the thermal runaway issue in Li-ion energy storage solutions, will prove to be one of the biggest enablers for mass adoption (of) Li-ion energy storage technology."
https://www.straitstimes.com/singapore/n...er-devices
PUBLISHED SEP 14, 2021, 2:33 PM SGT
......
Nanyang Technological University (NTU) scientists have invented a battery component that provides an added layer of protection to prevent short circuits, the main cause of fires in lithium-ion (Li-ion) batteries.
......
The breakthrough by Professor Xu Zhichuan and his team from the School of Materials Science and Engineering comes on the heels of 42 PMD fires and 26 power-assisted bicycle fires reported in Singapore last year.
......
The "anti-short layer" invented by the researchers can be easily added inside Li-ion batteries to prevent short circuits during charging.
......
Most Li-ion battery fires are caused by a build-up of lithium deposits, or dendrites, that cross the separator between the positive (cathode) and negative (anode) electrodes of the battery when it is being charged. This causes a short circuit, which leads to a chemical fire, said Prof Xu.
......
As it is not possible to prevent the formation of dendrites, the team made use of the dendrites' properties by coating an added layer of conductive material on the separator for the dendrites to connect with, said Prof Xu.
......
Once the dendrites connect with the layer, they will not be able to grow further and this prevents them from reaching the other side, he said.
......
The professor said the technology is the first of its kind globally, and can be rapidly adopted in battery manufacturing.
......
The technology will cost around 5 per cent of the existing production cost of a Li-ion battery, said Prof Xu.
It is now awaiting a patent and is being commercialised by NTUitive, NTU's innovation and enterprise company.
......
The invention will help to increase the safety and extend the lifespan of a Li-ion battery, which translates to longer driving ranges for electric vehicles and longer operational hours for battery energy storage solutions, Mr Lim added.
Dr Avishek Kumar, CEO and co-founder of V-Flow Tech, an energy storage technology firm, said: "This invention, which solves the most critical puzzle of the thermal runaway issue in Li-ion energy storage solutions, will prove to be one of the biggest enablers for mass adoption (of) Li-ion energy storage technology."
https://www.straitstimes.com/singapore/n...er-devices
