What are the positive and negative components of lithium batteries for solar street lamps?

The anode and cathode components of lithium batteries for solar street lamps mainly include the following materials.

Positive electrode composition:

1. cathode active materials: commonly used cathode active materials include lithium manganate (LiMn2O4), lithium cobaltate (LiCoO2) and lithium ferrous phosphate (LiFePO4). Among them, lithium ferrous phosphate is the most widely used cathode material because of its high safety, good cycle life and high energy density.

2. Adhesives: Commonly used adhesives are polymers, such as polyacrylate (PAA) and polyvinyl ester (PEA). The adhesive is used to bond the cathode active material and the conductive agent together to form a solid cathode structure.

3. Conductive agent: The commonly used conductive agents are carbon black and conductive polymers. The role of the conductive agent is to improve the conductivity of the positive electrode and promote the conduction of electrons.

Negative electrode composition:

1. Anode active material: The commonly used anode active material is graphite. Graphite has a long cycle life and high energy density, and is the most widely used anode material at present.

2. Adhesives: Polymers are also used as adhesives to bond negative active materials and conductive agents.

3. Conductive agent: The commonly used conductive agents are carbon black and conductive polymers. The role of the conductive agent is to improve the conductivity of the negative electrode and promote the conduction of electrons.

In addition to the above components, lithium batteries also include electrolyte and diaphragm. Electrolyte is usually composed of lithium salt and organic solvent to provide lithium ion transport. The diaphragm is used to isolate the positive and negative electrodes to prevent short circuit.

In a word, the anode components of lithium batteries for solar street lamps mainly include anode active materials, binders and conductive agents, and the cathode components mainly include cathode active materials, binders and conductive agents. The selection and combination of these components can be adjusted according to the specific application requirements and performance requirements.