How do you deal with battery shelf life performance attenuation?

Charge (or electric vehicles to a certain number of times to a certain degree) fixed number of year would certainly are faced with the problem battery performance attenuation, mainly manifested in capacitance decrease, which directly affect the vehicle range. Many consumers to worry about, if out of the warranty period, the efficiency of the battery down, can replace a new battery? How to calculate cost again?

At present, the sales of electric vehicles on the market, some warranty for 5 years, 100000 kilometers, a few hit six years 150000 kilometers. Although it is already very long, if out of warranty, battery performance attenuation, serious from a range of 200 kilometers into a range of 150 kilometers, 100 kilometers, even it is a big problem. If let the consumer pays in battery pack, cost is too high. But if we don't change the battery pack, spend hundreds of thousands of yuan to buy electric cars, and it was really like old car instead of walking short-distance transport.

There is new energy car manufacturer technology are explained to reporters: after long time use, electric vehicle battery performance in a certain degree of attenuation is normal. The provisions of the state, in the warranty period, the performance of the battery attenuation cannot exceed 20%.Otherwise, by manufacturer for owners replace the battery free of charge. So, it is replacing the entire battery pack? Not, there is a lot of battery pack battery monomer composition, the performance principle in line with the barrel theory, there is a battery monomer appear problem, will influence the whole performance of the battery pack. Therefore, the manufacturer will free replacement problem battery monomer, let the battery pack to return to the high performance.

Journalists, on December 30, 2014, the ministry of finance and other four ministries jointly issued by the application of new energy vehicles in 2016-2020 financial support policy to inform (draft) ", the auto production enterprises as clearly power battery recycling, the main responsibility of the responsible for power battery recycling. But there is no clear recycling key information such as price. To do so out of the warranty period after the battery attenuation, distributors and manufacturers also have no clear answer, because there is no specific laws and regulations standard, not good answer. The crux of the problem is that who will bear the cost of the replacement battery.

But the good news is that over the years the performance of the power battery is in ascension, but costs are falling. For example, a few years ago, battery costs 50-60% of the cost of the electric bikes, but now has fallen to 40%, is expected to decline further in the future. So, out of the warranty period, even if the battery performance attenuation, serious owners with waste battery replacement new battery pack, and also reduce the cost. But only by this, it is difficult to convince consumers.

It seems, when choosing electric vehicles, power battery warranty period or as long as possible.

The page contains the contents of the machine translation.