Lithium battery is a standard for mobile phones, computers and electric cars; If tesla's "energy wall" predict the future, lithium battery will become the core of modern home life. We are surrounded by lithium. Lithium battery is a standard for mobile phones, computers and electric cars; If tesla's "energy wall" predict the future, lithium battery will become the core of modern home life. "Lithium battery" three words, however, actually covers a variety of technologies, their difference is great. The Chinese academy of sciences, said David li Chen mast, a researcher of suzhou generally familiar lithium batteries, is actually "lithium ion battery. It against the lithium ions in the electrolyte movement, conversion of electrical energy and chemical energy. 

　　According to anode materials are different, can tell a lot of kinds of lithium-ion batteries. David li Chen said mast, mobile phone is commonly used cobalt acid lithium batteries, the cathode using graphite or other carbon materials, the positive use of cobalt acid lithium. The lithium oxide into ions in discharging, graphite, ran to the cobalt acid lithium; From charging, lithium cobalt acid lithium run out and get back in the graphite. The battery potential difference is big, so the energy density is high. "Tesla's battery, the positive use of cobalt acid lithium, also use ternary compound lithium materials." David li Chen said mast, lithium ion battery anode and lithium nickel, cobalt, manganese acid lithium. Byd, a leader in domestic battery using the lithium iron phosphate. David li Chen said mast, lithium ion batteries to improve the energy density, the anode materials is the bottleneck. Through the efforts of the battery research and development personnel, lithium ion battery is put in charge on many indicators such as time, basic meet the demand of the reality. 

　　In addition to the lithium ion battery, the world there are a number of research institutions and business the company is committed to a new type of lithium battery. Lithium sulfur batteries, such as David li Chen mast research is the use of sulfur in the anode, lithium metal anode (lithium battery) in a strict sense, the energy density of lithium ion battery is much higher than common. The hotspot research include lithium air batteries, and the solid-state lithium battery electrolyte for solid. "This kind of battery if engineering, improve battery performance is an important step forward, high yield, but also risky." David li Chen said mast, often have "DEMO version of the" new type of battery, but even the results published in top journals, will face a lot of "land mines" in the engineering, the road to success is difficult. And the media tend to exaggerate the new type of revolutionary significance of the battery. "In industry, the trend of development is used on these hybrid materials. Such as mixing a little bit of a new element, an increase of the battery performance a few percentage points, while avoiding the side effects of the new element. The industry is such a one small step for a small step improvement." David li Chen said mast. Japan and South Korea is the pioneer of the lithium ion battery products. David li Chen said mast, Japan's leading power is a Japanese families avoid disaster consciousness is strong, so families spare battery products. "Japanese companies have decades of formula, material data accumulation, research done very fine. Battery product has good consistency, do not need screening." Compared with David li Chen said mast, although the Chinese battery industry chain ready, but the quality is uneven, industry profits are also thin. There are some inferior battery, such as cheap, with bad charging treasure it several times. In spite of this, David li Chen mast for lithium battery industry in China is still optimistic. At present, he thought, there have been more than a dozen big businesses builders of doing research and development, this aspect also has a lot of investment. Scientific research institutions, the Chinese academy of sciences has set up a lithium battery of pilot projects, as a special head of lithium sulfur batteries, said David li Chen mast, the forerunner of the Chinese academy of sciences special focus on the industrialization of new battery, rather than the index of paper, it is more likely to let scientists achievements into commercial batteries in the future.