It is one of the essential components of electric vehicles. According to official information from "", lithium cobalt oxide batteries have poor safety, very high cost, average life and poor material stability. The reason why Tesla insists on using lithium cobalt oxide batteries is because lithium cobalt oxide batteries are one of the essential components of electric vehicles. The technology has developed relatively maturely, and the battery has high power, high energy density and high consistency.
1. Different characteristics
1. Lithium polymer battery: shaping flexibility; higher mass specific energy (3 times that of MH-Ni battery); up to 5V; perfect safety and reliability; longer life, less capacity loss;
2. Lithium cobalt oxide battery: stable structure, cap ratiohigh acity, outstanding overall performance, but its security is poor and its cost is very high.
2. Different applications
1. Lithium Polymer Battery: It has been more than 2 years since lithium-ion polymer battery technology matured and was commercialized globally, although sales are increasing rapidly. , However, its market share is still about 10%, which is incomparable with the 90% market share of liquid lithium batteries and is lower than people's expectations.
2. Lithium cobalt oxide battery: The application of lithium cobalt oxide battery is still relatively few. The technology of using cobalt-lithium for small batteries is very mature, but the cost of cobalt-lithium is now too high. Many companies use manganese-lithium instead.
Lithium cobalt oxide has stable performance and is currently the tmost mature technology used in mobile phones. However, the biggest disadvantage of its application is its high cost. Cobalt is also a relatively rare strategic metal. also has some advantages when used in power batteries.
Detailed information:
Precautions for using lithium polymer batteries:
1. Pay attention to short circuit conditions
Lithium-ion polymer batteries are subject to short circuit conditions during the charging process. Including: internal short circuit, external short circuit, etc. Although most lithium-ion batteries now have short circuit protection circuits and explosion-proof wires, in many cases this protection circuit may not work under various circumstances, and the role of explosion-proof wires is also very limited.
2. Do not overcharge when charging
If the lithium-ion polymer battery is charged for too long, the possibility of expansion will increase.
Baidu Encyclopedia-Lithium Ion Polymer Battery
Baidu Encyclopedia-Lithium Cobalt Oxide Battery