Compared to lithium battery, super capacitance charging and discharging speed, high efficiency, long cycle life and high safety. These seem to be the antidote to today's electric car push. While the lithium battery industry is enjoying a stellar run, one of its potential rivals has quietly approached, eyeing it as supercapacitors.

Recently, IDTechEx, a market-research firm, has made a bold claim that supercapacitors will destroy the lithium ion battery market. Titled "2014-2024 super capacitor in the market," the report, IDTechEx, said in 2024, the world's super capacitor will reach $6.5 billion market value, increase market share at the same time will engulf the battery market.

The so-called ultracapacitor is a new type of energy storage device between a conventional capacitor and a rechargeable battery. The basic principle is the same as other types of double - layer capacitors, which are made of double - layer structures made of activated carbon porous electrodes and electrolytes. Due to its large capacity, it has the same external performance as the battery, so it is also known as capacitive battery.

Why would anyone think it would replace lithium batteries? Mainly from its performance considerations. Compared to lithium battery, super capacitance charging and discharging speed, high efficiency, long cycle life and high safety. These seem to be the antidote to today's electric car push.

South car plant machine single batch delivery in May, 2014 of the world's first super capacitor 100% low floor trams, its use super 7500 f electric double layer capacitors, life up to 10 years, cycle count up to 1 million times. The train can be charged quickly at each station, with the maximum charging time of 30 seconds, and can be charged as soon as 10 seconds. The safety performance of supercapacitors is higher than that of lithium batteries and has been shown in various events in recent years. Over the past year, companies like Boeing, apple and tesla have been locked in the safety of lithium-ion batteries, often triggering events. Experts also point out that lithium batteries are "hard to work", making it difficult to make up for their safety. And the super capacitor that USES electrostatic charge to store electrical energy guarantees its safety performance.

Today, supercapacitors, due to their low energy density, mainly play a supporting role in lithium batteries. But because of the application of "all-purpose materials" graphene, the supercapacitor replacement of lithium batteries seems to be getting closer and closer. There is no consensus, though, at home and abroad. But it is more balanced than domestic enthusiasm for lithium-ion batteries. In Germany, for example, the German national electric vehicle development plan, issued in 2008, puts supercapacitors in the same position as lithium batteries.

In the industrialization of supercapacitors, some companies in the United States, Japan, Russia, Switzerland, South Korea and France have been leading the way with years of research and development and technology accumulation. For example, Maxwell of the United States, Nec, panasonic, Tokin, and Econd in Russia, which currently hold most of the world's markets. Among them, Maxwell was the first to get a taste of the big cake from the Chinese market, according to Piper Jaffray analyst Alexander Potter, who is now Maxwell's biggest customer and orders are accelerating.

In recent years, some companies in China have been actively involved in this industry due to the promising prospects of this field. But due to the high technical barriers, before 2012, engaged in large capacity of the super capacitor research and development of domestic manufacturers a total of more than 50, but production and can reach the level of practical factory only a dozen. Nowadays, the listed companies including jianghai (002484) (002484) (002484. SZ), copper peak electronics (600237. SH), Tibet city investment (600773, shares) (600773.SH) are the leading companies of domestic super capacitors.

However, given that the super capacitor can be applied to new energy power generation, smart grid, new energy vehicles, energy saving buildings, industrial and other various industries, energy saving and emission reduction will replace lithium-ion batteries, after ten years regardless of its purpose determines its strategic value.