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What are the types of lithium-ion batteries?

Lithium ion batteries are usually divided into two categories: lithium metal batteries: lithium metal batteries generally use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and batteries that use non-aqueous electrolyte solutions.

Lithium ion batteries: Lithium ion batteries are generally batteries that use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolytes.

1. Lithium cobalt oxide battery

Its high specific energy makes cobalt oxide lithium-ion batteries a popular choice for smartphones, laptops, and digital cameras. The battery consists of a cobalt oxide cathode and a graphite carbon anode. The cathode has a layered structure, during discharge, lithium ions move from the anode to the cathode, while the charging process flows in the opposite direction. Lithium cobalt oxide batteries perform excellently in high specific energy, but can only provide average performance in terms of power characteristics, safety, and cycle life.

2. Lithium manganese oxide battery

Lithium manganese oxide is one of the more promising lithium-ion cathode materials. Compared with traditional cathode materials such as lithium cobalt oxide, lithium manganese oxide has advantages such as abundant resources, low cost, no pollution, good safety, and good rate performance. It is an ideal positive electrode material for power lithium-ion batteries. However, its poor cycling performance and electrochemical stability greatly limit its industrialization. Lithium manganese oxide mainly includes spinel type lithium manganese oxide and layered structure lithium manganese oxide. Among them, spinel type lithium manganese oxide has a stable structure and is easy to achieve industrial production. Nowadays, market products all use this structure.

Advantages: Cheap price; Good low-temperature performance, with an efficiency of over 90% when discharging at minus 20 degrees Celsius; Excellent safety performance.

Disadvantages: Poor performance at high temperatures; Low cycle life; Low specific capacity; Rate discharge difference

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