Introduce the basic knowledge of the battery

Source: 2020 - 03 - 23 13:58 hits: what time is the graphene batteries? Graphene and graphene battery is a kind of lattice structure composed of carbon atoms in cells, due to its numerous features, is widely considered to be a 'magic materials. It is a powerful conductors of electricity and heat, has a very light chemical inertness and large specific surface area. It is also thought to be environmentally friendly and sustainable, there are countless possibilities. What is a graphene battery? The advantages of graphene battery in the field of battery, traditional battery electrode materials ( And the future of battery electrode materials) In graphene are improved significantly after reinforcement. Graphene battery light and durable, suitable for large capacity storage, can shorten the charging time. It can prolong the life of the battery, and the life of the battery and coated on the materials or add to the amount of carbon electrode to obtain the conductivity negatively correlated. Graphene increases the electrical conductivity, without the need for conventional batteries used in carbon. Graphene can improve the performance of the battery in a number of ways, such as energy density and shape. Lithium ion battery, And other types of rechargeable batteries) By introducing the graphene battery anode, using electrical conductivity and large surface area of the characteristic of the material to optimize its morphology and performance. Making hybrid material was found to also help enhance the battery. For example, vanadium oxide ( VO2) And a mixture of graphene can be used in lithium ion cathode, fast charge and discharge and recharge cycle is long. In this case, the VO2 with high energy capacity, but the poor electrical conductivity, this can be achieved by the structure of graphene as a 'skeleton' and attach the VO2 on it and resolved, thus creating high capacity, as well as a composite material with good electrical conductivity. Another example is the LFP ( Lithium iron phosphate) Batteries, a kind of rechargeable lithium ion batteries. Its energy density is lower than other lithium ion battery, but higher power density ( This is to provide energy at a rate of a battery indicator) 。 Strengthen the LFP cathode of graphene batteries are lighter, much faster than lithium ion battery charging, LFP battery capacity is greater than the traditional. Graphene batteries and the combination of graphene supercapacitor, not only can completely change the battery market, also can produce amazing effect, such as the famous electric vehicle range and promote the concept of efficiency. Although graphene battery has not been widely commercialized, but reports of battery breakthrough are everywhere in the world. Basic knowledge of battery as a kind of portable power supply, electric power equipment to run without directly inserted into the socket. Although there are many kinds of batteries, but they have the similar working principle: one or more electrochemical batteries will be stored chemical energy into electrical energy. Batteries are usually made of metal or plastic shell, including the positive ( Anode) And the cathode ( The cathode) And allow the electrolyte ions move between them. Separator ( A kind of permeable polymer film) Formed a barrier between the anode and cathode, to prevent it short out, while allowing the ionic charge carrier transport, when the current through the ionic charge carrier need to close the circuit. Finally, using the collector by connecting device for external rechargeable battery. What is a graphene battery? When two terminals, after the completion of the circuit between the battery through a series of reactions to generate electricity. Oxidation occurs at the anode, electrolyte ions of two or more than two combined with anode, liberating electrons compounds. At the same time, the reduction of cathode, cathode materials, ions and free electrons are synthetic compounds. Anodic reaction, in short, electronic, and the cathode reaction electronic and generate electricity in the process. The battery will continue to power generation, until the materials required to run out of electrode reaction. Cell types and characteristics of battery there are two major types: primary batteries and secondary batteries. A battery ( The disposable batteries) , electrode materials in the process of charging the irreversible changes, failure after use. Common example is used for toy, flashlight, and many portable devices of zinc carbon batteries and alkaline batteries. Secondary battery ( Rechargeable) , can discharge and charge for many times, because of the original electrode can restore function. For example, the automobile lead-acid battery and portable electronic products with lithium ion batteries.