As the overcharge and over discharge all affect the life of lithium-ion battery, so in general electronic components are to prevent over charge and over discharge of the device or electronic circuit, but in use should be possible to prevent over charge and over discharge. For example, mobile phone battery charging process, (more…)
Gel polymer electrolyte was first reported in 1975, using PAN and crosslinked copolymer VDF-HFP electrolyte salt with the PC and the preparation of physical cross-linking and chemical cross-linked gel. However, until after the birth of lithium ion batteries, gel polymer electrolytes was developed rapidly. (more…)
Carbon materials with graphite structure before, we must first go through a carbonization process, and then again in 2000 degrees for graphite.
carbonization process
Walker said: “Since the starting organic precursor by heat treatment to convert the former can be controlled with the arrangement of the carbon (more…)
Classical carbon materials was originally a very old material, its use can be traced back to BC, the large number of industrial production and applications as early as the mid 19th century had emerged. However, people on the basis of this theoretical study of solid materials have (more…)
For our current battery industry, the main problems is the environmental pollution and resource waste.
Is the environmental case, due to the battery industry’s production automation, mechanization level is not high, some township enterprises or even mostly by hand, lead to the production of polluting Guo Cheng, pairs of workers, a large physical hazards. Battery industry has been (more…)
Since the inception of lithium-ion battery, anode material related research mainly in the following categories: carbon materials, graphite, amorphous carbon materials, nitride, silicon-based materials, tin-based materials, new alloys, nano-oxides and other materials. As anode material for lithium ion batteries have the following performance requirements: (more…)
Electrolyte battery system is the ion carrier (in terms of e-insulator must be used for polymer electrolyte lithium-ion batteries as far as possible meet the following conditions:
? Processing of fine polymer film; (more…)
Thermal gravimetric analysis was to determine the quality of the sample with temperature, the sample on the sample pool temperature program, sample rod and balance beam one end of the connection, before heating, using weight and TG control circuit regulating the balance in balance, and then heat up at certain speed . If the quality of the sample without changing the balance scale and record document in a straight line (more…)
Fuel cell has many advantages, it will become the future of the main energy. But so far, the fuel cell is still has many shortcomings,
which is not into mass commercialization. Mainly for the following aspects: (1) the market price is expensive, (more…)
Fuel cells history goes back to the nineteenth century, specifically began in 1839 British personality. Rove, Platinum electrode using two grove electrical solution when he noticed, precipitating sulfuric acid gas (hydrogen and oxygen), and electrochemical activity has produced about DianShiCha IV of the poles. In 1894, AoSiTe from thermodynamics theory), low fuel and electrochemical oxidation than high-temperature (more…)
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