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1. Basics of Pole Design The lithium battery electrode is a coating composed of particles, which is evenly coated on the metal current collector. The lithium-ion battery electrode coating can be regarded as a composite material, which mainly consists of three parts:

- no title specified   Effect of coating process on lithium battery performance Pole sheet coating generally refers to a process of evenly coating the stirred slurry on the current collector and drying the organic solvent in the slurry. The coating effect has an important impact on the battery capacity, internal resistance, cycle life and safety, ensuring that the pole sheet is evenly coated. The selection of coating method and control parameters have an important impact on the performance of lithium-ion batteries, mainly manifested in: 1) Coating and drying temperature control: If the drying temperature is too low during coating, the electrode cannot be completely dried. If the temperature is too high, the organic solvent inside the electrode may evaporate too quickly, causing cracks and peeling on the surface coating of the electrode.

  Button battery 1 . Basic Introduction Lithium-ion button batteries are mainly composed of the following parts: positive electrode shell, negative electrode shell, (positive/negative) electrode sheet, diaphragm, gasket, spring, and electrolyte.  The C in the commonly used regular commercial button battery CR2032 indicates that the positive electrode is MnO2, and there is also a BR series, and B indicates that the positive electrode is carbon fluoride. C or B represents the button battery system, and R represents that the battery shape is round.

- no title specified 1. About Button cells, also known as coin cells or battery cells, are compactly designed batteries shaped like small buttons. They are widely used in various small electronic devices, such as car keys, TWS wireless earbuds, watches, calculators, hearing aids, and some medical devices and precision electronic instruments. Their characteristics include a small size and light weight, making them ideal for applications where space is limited.

- no title specified 1. Introduction A full cell is a complete battery system that includes a positive electrode, a negative electrode, a separator , an electrolyte , and a shell. Unlike a half-cell, a full cell can provide an accurate assessment of the electrochemical and mechanical properties of an actual battery when it is in operation. A half-cell usually uses a metal sheet or foil (such as a lithium sheet or foil) as a counter electrode, while a full cell consists of two active electrodes, one as the positive electrode and the other as the negative electrode. The design and assembly of a full cell need to consider a variety of factors, including the choice of electrode materials, the type of electrolyte, the properties of the separator , and the structure of the battery shell to ensure the performance, safety, and reliability of the battery . Full cell testing is usually used to evaluate the degree of match between the positive and negative electrod...

- no title specified 1. The Charging and Discharging Modes of Button Cells The charging and discharging tests of button lithium batteries typically use constant current charging (CC), constant current-constant voltage charging (CC-CV), constant voltage charging (CV), and constant current discharging (DC) to test and analyze the battery's charging and discharging behavior. By analyzing the data changes during this process, various electrochemical performance parameters of the battery or material, such as capacity, coulombic efficiency, charging and discharging plateau, and internal parameter variations, can be characterized.