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Recently, Samsung Galaxy Note7 mobile phones have frequent explosion accidents and have been banned from use on aircraft by many airlines
.
Just when Samsung is in a hurry, other mobile phone manufacturers are secretly happy, the safety of lithium batteries has been raised again, strengthening the control of lithium batteries is imminent, and the development of safer batteries has also been put on the agenda
.
According to Samsung, the Galaxy Note7 mobile phone exploded because in some mobile phones, the cathodes and yangs of the batteries that could not touch each other touched together
.
And this is very likely to cause sparks and even explosions
.
For lithium batteries, there are two electrodes on opposite sides, yin and yang, and the cathode is full of lithium elements, which is where the "fuel" is stored
.
During charging, lithium ions move from the cathode to the anode
.
When the battery is in use, the lithium ions move
in the opposite direction.
Between the cathode and anode are chemicals called electrolytes that help the ions move and conduct electricity
.
Although electrons need to move from one side to the other, the cathodes and anodes themselves must never touch
.
To prevent this from happening, battery manufacturers have inserted separators
between the cathodes and anodes.
The battery problem of the Galaxy Note7 is that the separator is defective, so that the cathode and yang electrodes touch together
.
Lynden Archer, a materials scientist at Cornell University in the United States, said that as major mobile phone manufacturers continue to pursue the longest possible battery life, battery accidents are becoming more and more likely to occur
.
To that end, some scientists are trying to develop an electrolyte that doesn't catch fire easily
.
These electrolytes are called "ionic liquids"
.
Industry insiders said: "Compared with general electrolytes, 'ionic liquids' require more heat to form combustible gases
.
This new electrolyte is much safer, but also has the potential to reduce battery life
.
”
Recently, Samsung Galaxy Note7 mobile phones have frequent explosion accidents and have been banned from use on aircraft by many airlines
.
Just when Samsung is in a hurry, other mobile phone manufacturers are secretly happy, the safety of lithium batteries has been raised again, strengthening the control of lithium batteries is imminent, and the development of safer batteries has also been put on the agenda
.
According to Samsung, the Galaxy Note7 mobile phone exploded because in some mobile phones, the cathodes and yangs of the batteries that could not touch each other touched together
.
And this is very likely to cause sparks and even explosions
.
For lithium batteries, there are two electrodes on opposite sides, yin and yang, and the cathode is full of lithium elements, which is where the "fuel" is stored
.
During charging, lithium ions move from the cathode to the anode
.
When the battery is in use, the lithium ions move
in the opposite direction.
Between the cathode and anode are chemicals called electrolytes that help the ions move and conduct electricity
.
Although electrons need to move from one side to the other, the cathodes and anodes themselves must never touch
.
To prevent this from happening, battery manufacturers have inserted separators
between the cathodes and anodes.
The battery problem of the Galaxy Note7 is that the separator is defective, so that the cathode and yang electrodes touch together
.
Lynden Archer, a materials scientist at Cornell University in the United States, said that as major mobile phone manufacturers continue to pursue the longest possible battery life, battery accidents are becoming more and more likely to occur
.
To that end, some scientists are trying to develop an electrolyte that doesn't catch fire easily
.
These electrolytes are called "ionic liquids"
.
Industry insiders said: "Compared with general electrolytes, 'ionic liquids' require more heat to form combustible gases
.
This new electrolyte is much safer, but also has the potential to reduce battery life
.
”
