In the 21st century, technology is productivity, and technology determines how far we can go. Now that 2016 has arrived, we can see that there are many clear “technical footprints†on the lithium battery industry blueprint in 2015: lithium-air batteries, graphene batteries, lithium-sulfur batteries... In fact, laboratory cutting-edge technology The ambiguity of reality has never weakened, it will only become stronger. Under such enthusiasm, the smog will eventually be dispelled, and our future will be brighter. On this occasion, Xiao Bian hereby counts out the top ten battery technologies (in no particular order) for your reference.
![[Year-end inventory] Top Ten Frontier Battery Technology in 2015: Lighting the Future](http://i.bosscdn.com/blog/11/4H/43/201-0.jpg)
NO.1 Chinese Academy of Sciences graphene battery: charging 7 seconds battery life 35 kilometers
Nowadays, electric car life has become one of the most headaches. Even the industry giant Tesla's Roadster upgraded sports car can only reach 644 kilometers of driving range. If someone tells you at this time: "There is such a kind The battery can be driven for 1000 minutes in one charge. It is believed that many people will be shocked. This battery is a graphene battery. Because of its poor performance, it is called "super battery" and even "demon." "."
Since its inception in 2004, graphene has been on the cusp of the wind, but if it really breaks through the technical limitations and is used on the battery, the word "subversion" is indeed affordable.
In this month, the Shanghai Institute of Ceramics of the Chinese Academy of Sciences released a message that a high-performance supercapacitor electrode material, nitrogen-doped ordered mesoporous graphene, has been developed, which has excellent electrochemical energy storage properties. It can be used as a "super battery" for electric vehicles. It takes only 7 seconds to charge and can last for 35 kilometers. The relevant research results were published on the world's top journal Science on December 18.
According to reports, the new graphene supercapacitor is light in weight, non-flammable and non-explosive, and can be produced at a low cost to achieve scale production. Because the performance has obvious competitive advantages compared with lead-acid, nickel-metal hydride and other batteries, and far superior to lithium batteries in terms of fast charge and discharge, the "super battery" can be widely used in existing hybrid electric vehicles, high-power output devices. Update.
A supercapacitor is an electrochemical energy storage device between a conventional capacitor and a battery. Due to its high power density, long cycle life, safety and reliability, how to make supercapacitors combine high power and high energy. Scientists have not found ideal materials for a long time.
In order to solve this problem, the Shanghai Institute of Ceramics of the Chinese Academy of Sciences, in conjunction with Peking University and the University of Pennsylvania, continued to tackle the problem. Through trial and error, design and synthesis, Huang Fuqiang's research team found that the performance of nitrogen-doped ordered mesoporous graphene was the best. Not only can achieve high energy density, high power density, but also through the use of water-based electrolyte, non-toxic, environmentally friendly, low-cost, safe and reliable. In other words, it can take a few streets in the rapid charge and discharge, which can completely replace the original electric vehicle battery into a new energy storage device.
But after careful consideration, the graphene battery is said to be charged for 7 seconds and has a battery life of 35 kilometers, which is 5 kilometers for one second. If the general household electric car is set to run 10 kilometers, then it will charge 0.5 degrees in 1 second, that is, the charging power should reach 1800kW. This looks a little embarrassing, perhaps from the laboratory to the factory to the market and there is still a long way to go.
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