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Lithium batteries may catch fire or explode when the temperature is too high, in order to eliminate this safety hazard, the research team of Stanford University in the United States has developed a special mechanism to automatically power off when the lithium battery overheats to avoid accidents
.
Even the new, original iPhone 6s Plus has been reported to have accidentally exploded due to overheating of lithium batteries
.
Such fire or explosion accidents usually result from external shocks, short circuits or overcharging, and controlling the increase in temperature is one
of the solutions.
To this end, the Stanford University research team developed a special nickel particle through nanotechnology, wrapped with a graphene film into a flexible structure, and assembled
with the lithium battery in the mobile phone.
When the battery in the phone overheats (set to 70 degrees Celsius), the nickel particles decompose and turn off the battery, preventing the temperature from continuing to rise
.
When the temperature of the lithium battery drops to normal levels, the graphene film will reassemble the nickel particles to reactivate
the battery.
If a polymer other than graphene is used, the temperature
at which the battery is turned off can be set.
This technology is still in the research and development stage, but if it can be widely used in 3C products, it is expected to maintain good battery performance while avoiding fire and explosion accidents
.
Lithium batteries may catch fire or explode when the temperature is too high, in order to eliminate this safety hazard, the research team of Stanford University in the United States has developed a special mechanism to automatically power off when the lithium battery overheats to avoid accidents
.
Even the new, original iPhone 6s Plus has been reported to have accidentally exploded due to overheating of lithium batteries
.
Such fire or explosion accidents usually result from external shocks, short circuits or overcharging, and controlling the increase in temperature is one
of the solutions.
To this end, the Stanford University research team developed a special nickel particle through nanotechnology, wrapped with a graphene film into a flexible structure, and assembled
with the lithium battery in the mobile phone.
When the battery in the phone overheats (set to 70 degrees Celsius), the nickel particles decompose and turn off the battery, preventing the temperature from continuing to rise
.
When the temperature of the lithium battery drops to normal levels, the graphene film will reassemble the nickel particles to reactivate
the battery.
If a polymer other than graphene is used, the temperature
at which the battery is turned off can be set.
This technology is still in the research and development stage, but if it can be widely used in 3C products, it is expected to maintain good battery performance while avoiding fire and explosion accidents
.
