lithium battery
Lithium batteries can be roughly divided into two categories. Lithium metal batteries and lithium ion batteries do not contain metallic lithium and can be charged. The fifth generation product of rechargeable battery, lithium metal battery, was born in 1996. Its safety, specific capacity, self-discharge rate and cost performance are better than those of lithium ion battery.
Lithium batteries were first used in pacemakers. The advantages of lithium battery, such as extremely low self-discharge rate and gentle discharge voltage, make the pacemaker implanted in human body work for a long time without charging. Lithium batteries generally have a nominal voltage higher than 3.0 volts, which is more suitable for integrated circuit power supply. Manganese dioxide batteries are widely used in calculators, digital cameras and watches.
20 18, 10 in June, the research groups of professors Liang Jiajie and Chen Yongsheng from Nankai University and Lai Chao from Jiangsu Normal University successfully prepared a three-dimensional porous silver nanowire-graphene carrier with multilevel structure, and loaded with metallic lithium as a composite anode material. This carrier can inhibit the generation of lithium dendrites, thus realizing ultra-high-speed charging of batteries, which is expected to greatly extend the life of lithium batteries. This research result was published in the latest issue of Advanced Materials magazine.
Nano-oxide According to the latest market development trend of lithium battery new energy industry in 2009, many companies have started to add nano-titanium oxide and nano-silicon oxide into traditional graphite, tin oxide and carbon nanotubes, which greatly improved the charge-discharge capacity and charge-discharge times of lithium batteries.