Tencent Digital (Liu Sha) Samsung's Note 7 battery self-ignition is clearly the largest consumer electronics failure in recent years, causing Samsung to recall millions of mobile phones, mobile operating profit plummeted 96%, and Note 7 this product is also a permanent Discontinued.
In fact, the battery failure incident has always been the easiest part of electronic products, including Sony, Toshiba, and Nokia have all had large-scale global battery recalls. The iPhone's battery self-ignition incident also happened occasionally. Even NASA (NASA) such research institutes are not spared.
In June of this year, RoboSimian, a new type of robot developed by NASA, suddenly exploded during the charging process in the laboratory. Fortunately, the staff members went to lunch at that time and caused no casualties. Surveillance cameras recorded the entire process and were quite startling.
Internship meritorious service
As you can see, this four-legged robot suddenly fired and exploded without exception. Unlike Note 7's spontaneous combustion, the RoboSimian's robot has a huge battery capacity, which is equivalent to a small bomb and has a destructive power.
The NASA interns discovered the fire first, then crawled into the lab window, sprayed the robot with a CO2 fire extinguisher, and used water to extinguish the fire, although this operation did not comply with NASA's safety regulations.
Then, another intern called the fire department. The firefighters put professional protective clothing into the lab and eventually completely stopped the fire mixed with water. So why does the RoboSimian robot explode? The NASA report pointed out that it was the robot's battery cell that was damaged, causing a voltage or current to flow out of the short circuit. Because the RoboSimian robot's battery pack is complex (with 96 cells), some small deviations can happen unexpectedly.
If you don't understand the RoboSimian robot, you can look at what it looks like when it is normal. It is a robot developed by NASA for alien exploration. It can walk like an animal or stand like a human and use the upper limbs for complex operations. This robot also participated in the 2015 DARPA Robotics Competition, although it did not win the championship.
Lithium batteries are still irreplaceable for a short time
NASA said that lithium-ion batteries are still an indispensable technology in the aerospace field, including satellites and space stations. In contrast, since the RoboSimian robot is not a NASA flight project, there may be some differences in the lithium battery technology and the flight technology field, so there is room for improvement.
However, lithium batteries are still the most extensive battery technology at present, even if NASA is so dependent on it. Therefore, lithium batteries will not disappear soon. We only hope that when it comes to people's lives (such as consumer electronics, electric cars), manufacturers must be more cautious and avoid the relapse of the Samsung tragedy.
Source: wired
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