Chapter 307: Inorganic Materials

"Linlin, what's the matter? I'm not feeling well? I'll ask the teacher for leave for you." Beside him, a handsome boy asked gently.
His name is Chu Tianyu, and he is the monitor of Class 3 of Inorganic Materials at Yanjing University.
"Thank you, monitor, I'm fine, I just have a cold." The girl smiled and shook her head.
"Then I'll get hot water for you." As if worried about the girl's rejection, Chu Tianyu hurriedly added: "Don't refuse."
"Then, thank you monitor." The girl hesitated for a while, but finally did not refuse.
"All said, don't call me the monitor, just call me by name, or call me Tianyu." Chu Tianyu said with a smile.
"Okay, monitor." The girl nodded.
"..." Chu Tianyu frowned imperceptibly, then got up and walked to the drinking fountain at the end of the classroom.
"Wow! Tianyu is pouring water for Peng Linlin again, I really envy her."
"I don't know how Peng Linlin's brain grows, why can't such a handsome guy look down on it?"
"Who knows? Maybe people pretend to be upright."
"makes sense……"
Among the enthusiastic eyes of the girls, Chu Tianyu came to Peng Linlin with a glass of boiling water.
"Be careful."
The smile is gentle, like a spring breeze.
"Wow."
A jealous voice sounded, and many girls have fainted.
"Thank you." Peng Linlin smiled, took the water glass and put it on the table, but Peng Linlin didn't mean to drink water at all.
Seeing this scene, Chu Tianyu narrowed his eyes, a trace of unhappy flashed between his eyebrows, and chuckled softly: "Linlin, in the early stage of a cold, drink more hot water."
"I'm not thirsty now." Peng Linlin said blankly.
"..." At this moment, Chu Tianyu's face was pale.
"Do you have any questions about lithium battery technology?" At this moment, the lecturer suddenly asked.
"Yes!" Peng Linlin stood up: "How to ensure that the "isolation film" will not break during the battery charge and discharge process?"
Lithium batteries, one of the most widely used batteries today, are composed of positive and negative electrodes and electrolyte.
During the charge and discharge process, a solid electrolyte interface film is formed on the positive and negative electrodes to isolate the electrolyte and maintain the normal operation of the battery.
If this film ruptures, additional chemical reactions will occur, consuming the life of the battery.
"Unfortunately, the teacher can't answer you this question."
"Because from the current technological situation, we cannot guarantee that it will not break."
"The electrode breaks through the diaphragm, it's just a matter of time." The teacher said helplessly.
Not just him, this is a common problem all over the world!
"Is it impossible to do it once and for all?" Peng Linlin asked.
"Although there is no solution once and for all, we can extend the life of the battery through various materials!"
"You can't do it once and for all, but you can do it for 4.5 years."
"This is the meaning of our inorganic materials science." The teacher said with a smile.
"Is there no way?" Peng Linlin asked without giving up.
Method? In fact, it is not without.
The teacher pondered for a while, then slowly said: "You should know graphene, right?"
"Teacher, are you talking about materials that are more expensive than gold?" asked a student in the audience.
"Yes!"
"The world is currently conquering graphene battery technology."
"In time, if graphene batteries can come out smoothly, it will no longer be a dream once and for all."