As the electronics, information and communications products to the rapid development of wireless, portable direction , light weight , small size, high energy density, small rechargeable battery is an urgent need.
Currently small rechargeable batteries include nickel-cadmium batteries , nickel metal hydride batteries and rechargeable lithium battery. And secondary materials in lithium ion batteries do not contain cadmium , lead, mercury and hazardous substances like heavy metals , in the environmental demands than nickel-cadmium batteries have a natural advantage, and low energy density of nickel-metal hydride batteries , high-temperature characteristics and a little worse Disadvantages memory effect so long secondary lithium battery cycle life, low self-discharge , no memory effect , high energy density make it more development potential.
Meanwhile portable medical products, lighting products, electric tools, other industrial products, on demand for secondary lithium-ion batteries ,
Hybrid vehicles (HV) and the best-selling electric vehicle (EV) the introduction of the secondary lithium-ion battery is more cause for concern.
In recent years, compared to other types of lead-acid batteries , nickel metal hydride batteries and nickel-cadmium batteries, secondary batteries , lithium battery sales has shown a trend of rapid growth , its market share has soared.
Lithium battery industry market structure :
Global lithium production mainly in China, Japan, and South Korea . Value is calculated according to South Korea accounted for 38 % of the global share of lithium , Japan accounted for 35% , China 25% , the three together accounted for 98% of global market share .
Lithium battery industry chain overview:
Upstream of the lithium battery industry chain is the lithium battery materials , including cathode material, anode material, electrolyte, separator , such as a conductive agent and a binder ; midstream mainly manufacturers of various types of battery cells and battery assembly manufacturer ; downstream mainly lithium supporting applications.
In addition , a complete industrial chain of lithium-ion batteries , lithium should also include the recycling of mineral resources and the most upstream lithium batteries .
According to the Institute for Statistics , in 2011 the global market for lithium batteries is about 70 billion yuan in 2015 to grow to 135 billion yuan .