In the era when consumer electronics began to take off, manufacturers urgently needed a battery that was light, large-capacity, and capable of circulating and discharging. This kind of urgency has caused battery manufacturers and product manufacturers to ignore the hazards of "lithium dendrites."
This is to say that the lithium battery manufacturer martyred - the Canadian company Moli Energy. The company introduced an AA-type lithium battery in 1985 with an energy density of more than 100Wh/kg, making it a hot red fried chicken at the time, and in 1989 launched a second-generation lithium battery.
The lithium battery produced by the company was first used in the computer of NEC, a famous Japanese computer equipment manufacturer, and the telephone of NTT, a Japanese telecom company. Tragically, after the release of the product with the new battery in the spring of 1989, it was followed by a safety accident in which the product exploded.
Electronic products turned into flammable and explosive dangerous goods, causing panic in Japan at the time. Finally, Moli Energy had to announce that it had recalled all the products sold and compensated the victims. At the end of 1989, Moli Energy was acquired by NEC at the time of bankruptcy.
NEC manufactured 500,000 batteries in accordance with Moli Energy's original manufacturing method, and each of them was tested for defects. Then, these batteries were assembled into a battery and mounted on a mobile phone, and 5,000 cycles of charge and discharge were performed in about one and a half years.
In this large test, NEC found that almost all mobile phone batteries have failed, from a sharp drop in battery capacity to an explosion. In the face of such tragic results, NEC can only announce the permanent abandonment of the technical solution of using lithium metal as a negative electrode as a rechargeable battery.
Sony's "18650 Cylindrical Battery" was originally designed for the CCD-TR1 8mm video recorder with a battery capacity of 1000-1300 mAh. With this battery technology, Sony is in the forefront of consumer electronics and is one of the most popular suppliers in the global battery market.