For pure electric vehicles, undoubtedly one of the most critical components of the three yuan lithium battery, how mileage performance of pure electric vehicles, the battery capacity see how the performance of the whole three yuan lithium battery pack. So, for the present, battery progress in the end how hard? What reaches of space?
Triads lithium battery group belonging to liquid lithium, higher battery energy density of this battery energy density than nickel batteries, but still present the heating phenomenon. If the pure electric vehicle fast charging time, then the internal lithium battery set of triples chemical reaction will increase, resulting in a rapid increase in heat, the situation is serious, it would heat generating failure phenomenon, which affects three yuan lithium battery the life of the group.
Further, a material three yuan lithium battery to prevent the battery pack is another reason for the development of the group. Current development idea is to reduce the resistance of the traction battery separator, to increase the conductivity, the lithium ion permeability expand, thereby increasing the ability of three yuan lithium battery pack. However, this approach small operating space, advances three yuan lithium battery pack is not large.
Finally, now one of the development direction of the battery pack is solid state battery pack. If the solid-state battery power has been a breakthrough, then the energy density of the battery pack will be greatly improved.