lithium air battery

Abstract

The invention discloses a lithium-air battery. The lithium-air battery includes: an air chamber and a battery housing casing, and the air chamber includes: a first air inlet and outlet, a second air inlet and outlet, and a battery accommodation space; the first air inlet and outlet and the second air inlet and outlet Coaxial arrangement, the battery storage space is set between the first air inlet and outlet and the second air inlet and outlet, a plurality of lithium-air batteries and at least one lithium-air battery module are arranged in the battery housing, and a plurality of lithium-air batteries It is suitable to be distributed in the battery housing at intervals, and the layout direction of the multiple lithium-air cells is perpendicular to the axial direction of the first air inlet and outlet and the second air inlet and outlet. The lithium-air battery module can be formed by a plurality of lithium-air cells. The lithium-air battery according to the embodiments of the present invention can supply external air more smoothly, improve the oxidation / reduction reaction of oxygen in the lithium-air battery, improve the discharge capacity and exert relatively stable electrical performance.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lithium-air battery. Background technique [0002] The demand for large-capacity power generation that can be stored in digital, electric motors, and automobiles is increasing, and attention has been paid to lithium-air batteries with the highest capacity in storage systems. According to the lithium oxide reaction (2Li+O 2 ->Li 2 O 2 ), its energy density can reach 3500wh / kg, which is more than 10 times higher than that of lithium-ion batteries. The principle of the lithium-air battery is to use oxygen in the air as the positive electrode, so it has advantages in terms of material price and light weight. The reaction formula of Li, the negative electrode metal of lithium-air battery, is 1 to 4 items. [0003] discharge state [0004] [Reaction 1] [0005] Negative electrode: 2Li→2Li + +2l — [0006] [Reaction 2] [0007] Positive electrode: 2Li + +2l — +O 2 →...

AI Technical Summary

Problems solved by technology

Historically, lithium-air batteries have high overvoltage phenomena during discharge and charge, resulting in polarization, resulting in problems such as lower energy efficiency than current lithium-ion batteries.

Images