The ingredients of positive and negative electrodes of lithium batteries used in solar street lights mainly include the following materials.
Cathode ingredients:
1. Cathode Active Materials: Commonly used cathode active materials include lithium manganate (LiMn2O4), lithium cobalt oxide (LiCoO2), and lithium iron phosphate (LiFePO4). Among them, lithium iron phosphate is currently the most widely used cathode material because of its high safety, good service life and high energy density.
2. Binders: Commonly used binders include polymers, such as polyacrylate (PAA) and polyvinyl ester (PEA). The function of the binder is to bind the positive active material and the conductive agent together to form a solid positive structure.
3. Conductive agent: Commonly used conductive agents include ncarbon black and conductive polymers. The function of the conductive agent is to improve the conductive performance of the positive electrode and promote the conduction of electrons.
Anode ingredients:
1. Negative active material: The commonly used negative active material is graphite. Graphite has good service life and high energy density, and is currently the most widely used anode material.
2. Binder: Polymer is also used as a binder to bind the negative active material and the conductive agent together.
3. Conductive agent: Commonly used conductive agents include carbon black and conductive polymers. The function of the conductive agent is to improve the conductive performance of the negative electrode and promote the conduction of electrons.
In addition to the above ingredients, lithium batteries also include an electrolyte and a separator. THEElectrolyte generally consists of lithium salts and organic solvents to ensure the transport of lithium ions. The separator is used to isolate the positive and negative electrodes to prevent short circuits.
In short, the ingredients of positive electrodes of lithium batteries used in solar street lights mainly include positive active materials, binders and conductive agents, and the ingredients of negative electrodes mainly include negative active materials , binders and conductive agents. The selection and combination of these ingredients can be tailored to specific application needs and performance requirements.
Is the anode material of lithium iron phosphate battery artificial graphite or natural graphite
Lithium ion battery components
(1) Upper and lower battery cover?
p>(2) Electrode positive - the active material is usually lithium cobalt oxide?
(3) Separator - a special composite membrane
(4) Negative electrode - —The active material is carbon?
(5) Organic electrolyte?
(6) Battery shell
Sogou Encyclopedia
Lithium C battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It was invented by Edison. The reaction equation used by the battery is: Li+MnO2=LiMnO2. This reaction is an oxidation-reduction and discharge reaction. In the past, because the chemical properties of lithium metal are very active and the environmental requirements for processing, storage and use are very high, lithium batteries have not been used for a long time. With the development of modern science, lithium batteries aret now become common. February 22, 2016, ICAO Announced a ban on checked baggage with lithium batteries[1]. Lithium batteries are generally divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-price ratio are better than those of lithium-ion batteries.
Pacific Automotive Network Lithium Iron Phosphate Battery Anode Material Artificial graphite is a commonly used anode material for lithium-ion batteries. Its crystals are stacked in a planar hexagonal mesh format. composed of carbon atoms, having a layered structure. Graphite has good conductivity and crystalhigh linity. The lithium ions are deeply embedded in the graphite layer, forming a lithium-integrated LixC6 compound.
Anode - artificial graphite Artificial graphite is a commonly used anode material for lithium-ion batteries. Its crystals are stacked in a hexagonal mesh plane composed of carbon atoms and have a layered structure.
Graphite has good conductivity and high crystallinity. The lithium ions are deeply embedded in the graphite layer, forming a lithium-integrated LixC6 compound. During charging and discharging, the deintercalation reaction of lithium in graphite is: C6+xLi++xe-=LixC6
Electrolyte Electrolyte is an important component of the battery and plays a conducting role between the positive and negative electrodes. drums. The role of the ions is to connect the materials of the positive and negative electrodes.
Separator The separator is one of the int structuresernes keys to the battery cell. Its main function is to separate the positive and negative electrodes of the battery and prevent the two poles from contacting and short circuiting; ion passage function; When the battery overheats, it is blocked by the shutter function. Current conduction in the battery.
The main raw materials of the separator are polyethylene PE and polypropylene PP. The current production process includes dry method and wet method. The specific product comparison is as follows:
Conductive agent Conductive. The agent is to ensure that the electrode has good charging and discharging performance. A certain amount of conductive material is usually added during the production of the pole piece to improve the charging and discharging efficiency of the electrode.
Binder The raw material ratio of a complete lithium-ion battery should includean active material, a conductive agent, a binder, a solvent and additives, among which the binder plays the role of binding the active material. Although the amount of bonding between materials and sheets, active materials and active materials, and active materials and conductive agents is small, their functions are irreplaceable.
Physical and chemical parameters and standards of PVDF: Physical and chemical parameters and standards of CMC/SBR: Source of this article: Lithium Battery Frontier, please indicate the source when reprinting. Xincheng Information was established in 2010, mainly serving the three major industries of lithium battery, carbon and electric furnace steel. It is a professional industrial research and consulting company in China. Xinchen Information is research-centered and provides media information, research guidance, databases and solutionsmarketing.
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