
Everyone knows that solar energy is widely used in various fields, and the economic benefits it brings are quite impressive. Solar courtyard lights have also gained popularity in the photovoltaic industry.
The thickness change caused by lithium-ion embedding in solar courtyard lights leads to expansion. This is because when lithium-ion batteries are charged, lithium ions move from the positive electrode to the negative electrode, resulting in an increased interlayer spacing of the negative electrode, thus causing the battery cell to expand. The rule here is that the thicker the battery cell, the greater the expansion will be. Unreasonable process parameters and poor process control during the manufacturing of lithium battery cells are also significant causes of cell expansion. Variations and inaccuracies in factors such as slurry dispersion, compact density, negative-positive ratio, temperature control, electrolyte volume, and internal pressure of the battery cell can all lead to expansion. Water, in particular, needs to be strictly controlled because the highly active lithium carbide formed during charging is very sensitive to water; once they come into contact, a violent chemical reaction occurs, generating gas and increasing internal pressure, which promotes cell expansion. Therefore, during the production of lithium batteries, in addition to strictly dehumidifying the electrode sheets, it is also essential to use dehumidification equipment during the injection process.
Metallic lithium or its alloy metals serve as negative electrode materials, and batteries using non-aqueous electrolyte solutions are secondary batteries formed by compounds that can reversibly intercalate and de-intercalate lithium ions. Lithium batteries generate electricity through the chemical reaction between the positive and negative electrodes. During charging, lithium atoms in the cathode ionize into lithium ions and electrons; lithium ions move to the anode, where they combine with electrons to form lithium atoms.
A multimeter can be used to detect the positive and negative poles of the battery (those who use multimeters know that the polarity must be correct to display the battery’s voltage correctly). Then, the light source’s wires can be directly connected to the battery’s wires to check if the light source lights up, allowing you to determine the polarity of the light source’s wires (if the positive and negative wires of the light source are reversed, it will not light up, but it will not damage the light source, so you can safely test it). Using a multimeter’s DC voltage function, the positive and negative poles of the solar panel output wires can also be checked (the principle is the same as detecting the battery’s poles). This detection will also reveal whether there are any faults in the components of the solar street light system. If there are no faults, the wiring can be connected according to the controller’s wiring requirements, while paying attention to waterproofing to avoid damage to the controller.
Bitpott solar courtyard light manufacturers specialize in the research, production, and sale of solar LED outdoor lighting, with many years of production experience and advanced equipment, ensuring quality, reasonable prices, and configurations. For inquiries about solar courtyard light prices, please contact our customer service for assistance.