CR2032 button cell battery

　　Detailed explanation of wireless charging technology. Born for CR2032 button cell battery?

　　The purpose of wireless charging is to charge CR2032 button cell battery. If you don’t understand CR2032 button cell battery, don’t talk about charging, let alone wireless charging. If you want to understand wireless charging, you must first understand CR2032 button cell battery. The CR2032 button cell battery mentioned here mainly refer to lithium CR2032 button cell battery.

　　This article only introduces the basic knowledge of CR2032 button cell battery, which is suitable for all practitioners in the wireless charging industry.

　　Too many people have misunderstandings about CR2032 button cell battery:

　　Misunderstanding 1: Does the battery need to be activated? Does the new battery need to be repeatedly charged and discharged 3 times for 12 hours each time?

　　Misunderstanding 2: Charge the battery as little as possible to increase its service life.

　　Misunderstanding 3: The battery will explode if it is charged for too long. Unplug it when it is full.

　　Myth 4: The faster the charging, the better the battery.

　　Misunderstanding 5: The larger the charging current of the charger, the faster the charging.

　　Misunderstanding 6: Wireless charging is not as fast as wired charging.

　　Let’s not discuss the reasons for these misunderstandings first. Let’s analyze the characteristics of lithium CR2032 button cell battery and we will naturally understand the specific reasons.

　　The full text is divided into three parts: battery basics, battery protection, and battery charging.

　　(1) Lithium battery basics

　　Composition of lithium battery

　　The mobile phone CR2032 button cell battery we usually see are lithium CR2032 button cell battery. The industry's leading battery pack is a lithium battery pack. The lithium battery pack is mainly composed of two large parts: battery cells and protective plates.

　　The battery core is mainly composed of five parts: positive electrode material, negative electrode material, electrolyte, separator and casing.

　　The protection board is mainly composed of protection chips, MOS tubes, resistors and capacitors and PCB boards.

　　Classification of lithium CR2032 button cell battery

　　Lithium CR2032 button cell battery are divided into cylindrical CR2032 button cell battery and prismatic CR2032 button cell battery according to their shapes. Cylindrical CR2032 button cell battery are like the 18650 CR2032 button cell battery used in some mobile power supplies and power tools, and square CR2032 button cell battery are like mobile phone CR2032 button cell battery.

　　According to the electrolyte, they are divided into lithium-ion CR2032 button cell battery and polymer CR2032 button cell battery. The electrolyte of lithium-ion CR2032 button cell battery is liquid, and the casing is generally hard, usually aluminum or steel. For example, Samsung's traditional machines are all lithium-ion CR2032 button cell battery. The electrolyte of polymer CR2032 button cell battery is solid, such as the CR2032 button cell battery of Apple mobile phones.

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