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Many people like to use electric vehicles for transportation. They are very flexible and convenient for parking. Moreover, you don’t need to go to the parking lot and can ride downstairs. They are also very convenient to use. They are very practical for short-distance travel, but , electric vehicles are not very "perfect" models. Its biggest drawback is that it relies too much on batteries and has relatively poor durability.
Batteries are components with relatively poor durability, but batteries are also divided into "three, six, nine". Some batteries have really poor durability, but there are also ones with a relatively longer life. Therefore, car owners want to avoid frequent replacement. Batteries, you can choose some batteries with longer life according to your own car needs. As an electric vehicle practitioner, today I will sort the current mainstream electric vehicle batteries so that everyone can choose a more durable battery. .
No. 1: Lithium battery
Among the mainstream electric vehicle batteries, lead-acid battery has the longest durability. Generally speaking, the number of charge and discharge cycles of ternary lithium batteries is not less than 800 times, while Lithium iron phosphate battery is not less than 200 times. So, if you convert it, for example, charge it every 2 days, through calculation, the theoretical life of the ternary lithium battery is 800×2÷365=about 4.38 years, while lithium iron phosphate The theoretical life of the battery is 2000×2÷365=about 10 years.
In addition to better durability, lithium batteries also have the advantages of being lighter in weight and smaller in size. Of course, its disadvantages are also very obvious. Its price is relatively high, and scrapping has no economic value for recycling for car owners. Moreover, there is a possibility of deflagration and safety deviation.
No. 2: Black gold/graphene battery
Upgraded version of lead-acid battery, black gold and graphene batteries are based on lead-acid batteries with added graphene elements. The durability of such batteries can also be improved. Generally, black gold or graphene batteries can be charged 500 to 1500 times. Taking the graphene battery of Yadi as an example, it can be charged no less than 1320 times. Then, through calculation, 1320×2÷365=7.2 Years or so.
is the second most durable black gold/graphene battery. Compared with lithium batteries, it is about one-third cheaper and more affordable. Moreover, as its core is a lead-acid battery, it There is no self-ignition characteristic and the safety is better. However, the black gold/graphene battery products currently on the market are uneven. When choosing, you must look for the ones that actually contain "graphene elements", otherwise it will just be an "IQ tax".
No. 3: Mid-range battery
Lead-acid batteries commonly used in electric vehicles, including Chaowei , Tianneng and other brands, all classify lead-acid batteries, including the existence of mid-range batteries. This type of battery , among ordinary lead-acid batteries, they are relatively durable. The number of charge and discharge cycles can reach about 300 to 500 times. According to the theoretical calculation formula, it is basically no problem to use it for 2 to 3 years. Why are
mid-range batteries more durable than ordinary lead-acid batteries? Because this type of battery, although it is only a lead-acid battery, does not add other elements that increase battery durability like black gold batteries. However, this type of battery has better raw materials than Using "native lead", batteries made of new lead materials will have relatively better durability.
No. 4: High-quality batteries
There is a common classification among lead-acid batteries, that is, high-quality batteries. These batteries are relatively low-priced among ordinary lead-acid batteries, while the lead-acid batteries mentioned above are cycle-friendly. The number of charges and discharges is between 300 and 500 times, and it is basically around 300 times. Calculated in this way, if it is charged every 2 days, its theoretical life is only about 2 years.
Why the durability and life of high-quality batteries are poor compared to ordinary lead-acid batteries? This is because in the current industry, the production of high-quality batteries basically uses recycled lead. That is, the old batteries currently on the market are recycled. Lead can be extracted and re-produced into batteries. In this way, although the batteries can be used and can meet the national factory standards for batteries, their durability is slightly worse than that of native lead.
No. 5: After-sales battery
The last one, and the one with the shortest life among lead-acid batteries, is the after-sales battery. This kind of battery is a defective battery retained by the manufacturer. Its purpose of existence is to solve some after-sales problems. , for some users who are more than willing to replace the battery with a new one for free, they use this after-sales battery to replace it, but the life of this type of battery is generally relatively short.
Common after-sales batteries include maintenance batteries and turnover batteries. These batteries are generally not sold to the outside world, but some merchants replace the batteries with car owners for profit. As car owners, please be aware that the lifespan of this type of battery is generally only half a year. For a year or so, try not to choose.
summary:
The above are the 5 common batteries listed by experts. Regarding the order of life, as a car owner, if you want a longer life, you can choose lithium batteries. If you want a long life, but the cost is lower and the weight is not If you need to consider, you can consider black gold or graphene batteries. If you only travel for short distances, ordinary mid-range batteries are enough, while high-quality batteries and after-sales batteries have poor durability. You can choose according to your own needs. , however, experts suggest that it is not recommended to choose batteries with short lifespans.
So, which of the above batteries have you used, and what do you think of their durability? Everyone is welcome to comment and exchange.
