The comparison of polymer battery and lithium battery liquid

Source: 2020 - 03 - 28 clicks desire: the comparison of liquid polymer battery and lithium battery because the production process of each manufacturer is different, polymer lithium battery into winding type on the market ( SONY, Toshiba, represented by) Type, laminated ( TCL, ATL as representative) Two different kinds of structure, but most of the specifications of the mobile phone needs less than 4 mm thickness. Compared with liquid polymer outer packing USES of aluminum film is thinner, thinner than steel shell and aluminum shell, mode of production is different from liquid lithium batteries. Polymer the thinner, the better production effect, theoretically can produce the thickness less than 0. 5 mm batteries. Liquid lithium battery, by contrast, the thicker the better production, less than 4 mm thickness of battery is difficult to produce, even if the production, capacity is significantly lower than the polymer lithium-ion batteries, the cost is not an advantage. As a result, the thinner batteries, polymer, the lower the cost of production, liquid production cost is higher. However, on the specifications of the thick liquid lithium power supply chain is a mature, is a mature technology, high production efficiency, high yield, strong manufacturing cost advantages. From the point of the market, 5 mm, 6 mm thickness series of liquid lithium battery capacity is much higher than 3 mm, 4 mm thickness series of battery capacity, but the price is much lower. Theoretically, polymer material cost in 5 mm and 6 mm thickness specification is close to liquid, but the current process of 5 mm and 6 mm series battery costs much higher than the liquid, so there is still a long way to go, real and liquids in the specification. Battery of main structure consists of three parts: the anode, cathode and electrolyte. The so-called polymer lithium ion battery using polymer materials as the main battery systems in at least one or three main structures. In polymer lithium ion battery systems, polymer material is mainly used in the anode and electrolyte. The anode materials include conducting polymers commonly used in lithium ion batteries or inorganic compounds, the electrolyte can be solid or colloidal polymer electrolyte, or organic electrolyte, and carbon anode materials are often lithium metal or lithium compound between the layers. Lithium-ion technology commonly used liquid or colloidal electrolyte, therefore, need to use strong secondary packaging to contain flammable active ingredients, this increases the weight and cost, and limit the flexibility of the size. There is no redundant electrolyte polymer lithium ion method, therefore more stable, not easy because of the battery overcharge, extrusion, collision or other damage caused by the dangerous situation, excessive use of not easily also. A new generation of polymer lithium ion battery can thin shape change in shape ( 0. 8 mm thin) And arbitrary shape, arbitrary area, greatly improve the flexibility of battery design, can meet the needs of the product, made into any shape and the capacity of the battery, the equipment for the application developer in the power supply solution provides a high degree of flexibility and adaptability design, in order to maximize the optimization of product performance. At the same time, the unit of polymer lithium ion battery energy is 50% higher than the current gm lithium ion battery and its capacity, charge and discharge characteristics, security, operating temperature range, cycle life, More than 500 times) And environmental performance greatly improved compared with lithium ion batteries. Polymer lithium-ion batteries, polymer lithium ion battery is different from ordinary battery electrolyte. In the original design of the 1970 s, the use of the solid polymer electrolyte. The electrolyte is like a plastic film, do not carry electronic, but allow ion exchange ( Rechargeable atom or group of atoms) 。 Polymer electrolyte has replaced the traditional saturated electrolyte porous membrane. Dry polymer electrolyte design can simplify assembly, improve cell mechanical strength, is safe, and can be made into thin geometry. The thickness of a single cell can be thin to 1 mm. Equipment designer can according to your own imagination to design the shape and size of the battery. Unfortunately, the conductivity of solid polymer lithium ion battery is poor. Resistance is too high, can't provide the current communication device drivers required high pulse current laptop hard disk. Heat the battery to 60 degrees Celsius can quickly improve conductivity, but this requirement does not apply to portable devices. Some gel electrolyte were introduced as a compromise.