What are the drawbacks of lead-acid batteries compared to lithium batteries?

What are the drawbacks of lead-acid batteries compared to lithium batteries?

In the current trend of automotive development, environmental protection is an inevitable topic, whether for traditional fuel vehicles or new energy models, lightweighting is an inevitable requirement. New energy vehicles use batteries as the power to drive the car, and the weight of the power battery is a constraint that will directly determine the range of the new energy vehicle. The power battery shell is the main part of the power battery unit, mainly to play a protective role, for the consideration of lightweight factors, new energy power battery shell usually uses 3003 aluminium plate as the main.

The power battery shell is generally made of one piece of tensile forming, with uniform wall thickness, no cracks, waterproof, moisture-proof and storm-resistant characteristics, requiring excellent raw material performance and good processability. 3003 aluminium sheet belongs to aluminium-manganese alloy, this material is easy to process and form, and has high temperature corrosion resistance, good heat transfer and electrical conductivity, aluminium alloy of aluminium power battery shell (except for the shell cover) can be formed in one stretch, compared to stainless steel shell, it can eliminate the need for a box. Compared to stainless steel shells, the welding process on the bottom of the box can be eliminated.