What are the advantages and disadvantages of lithium battery and lead-acid battery in electric vehicle

Lead-acid battery

Among them, lead - acid batteries for the largest number. Lead-acid batteries cost the least and are the most commonly used. China is the world's largest producer of lead-acid batteries. It has less pollution and can be recycled. The disadvantage is that it is smaller than the volume. In other words, at the same capacity, the battery weight and volume are large. The current lead-acid battery is basically developed from the floating charge type of battery. Floating rechargeable battery is not suitable for fast charging and large current discharge. Although technicians have spent a lot of efforts to make fruitful improvements, it can be put into practical use, but its life is not ideal.

Colloidal batteries belong to a development classification of lead-acid batteries. The simplest way is to add a gelling agent in sulfuric acid to change the electrohydraulic sulfuric acid into a colloidal state. Electrohydraulic colloidal batteries are usually called colloid batteries. In a broad sense, the difference between colloidal batteries and conventional lead-acid batteries is not only that the electrohydraulic change to gelatinous.

For example, the non-solidified hydro colloids belong to the same category of colloidal batteries according to their electrochemical classification structure and characteristics. It can also be regarded as the application feature of colloidal batteries if polymer materials, commonly known as ceramic gratings, are attached to the gratings. Recently, some laboratories have added a targeted coupling agent into the plate formula, which greatly improved the reaction utilization rate of active substances on the plate. According to the non-public data, it can reach the weight specific energy level of 70wh/kg. These are all examples of industrial practice at the present stage and the application of colloidal batteries to be industrialized.

The difference between colloidal batteries and conventional lead-acid batteries is from the initial understanding of electrolyte gel, to the further development of electrochemical characteristics of electrolyte infrastructure, as well as the application promotion in the grid and active substances. Its most important characteristic for: use a smaller industrial cost, along the 150 - year history of the lead-acid battery industry way to create more high-quality batteries, its flat discharge curve, inflection point, high specific energy, especially more than 20% higher power than conventional lead-acid batteries, life in general, about twice the length of a conventional lead-acid battery, high temperature and low temperature properties is much better.

Lithium ion battery

Lithium-ion batteries hold better than nickel-metal hydride batteries. For lead-acid batteries of the same capacity, lithium-ion batteries can weigh as much as a laptop, allowing the elderly, the weak, women and children to use them. It can also outlast nimh batteries. Current cell phone batteries basically use this kind of battery. The internal resistance of lithium battery is relatively large, so when the battery is about to fully discharge, it will feel that the power of the car is insufficient. The main problem of lithium ion battery is that the battery will explode in the state of overcharge and over discharge. The cell phone battery is a single battery that is used, and then it is used together with a good protective circuit, basically eliminating the problem of battery explosion. In the use of electric bicycles, it is necessary to use a battery pack, and the protection circuit of the battery pack is much more complex than the protection circuit of a single battery, the material cost is also greatly increased. At present, the cost of a good lithium battery protection circuit is close to the price of the battery itself. While the explosive lethality of polymer lithium battery is lower than lithium ion battery, but there is also the possibility of explosion and combustion. This is as much of a problem as lithium-ion batteries.

Advantages and disadvantages of trolley battery:

Lithium battery electric vehicle:

Pros: high efficiency. Light body, long driving range, user use and maintenance requirements are not strict.

Disadvantages: high price, uneven lithium battery technology in China, lithium battery for electric vehicles have hidden dangers.

Lead-acid battery electric vehicle:

Advantages: cost-effective. The battery price is relatively cheap, the capacity is large, the battery may choose the brand many, the technology is mature.

Disadvantages: low efficiency. The battery pack is bulky, leading to a heavy body, short driving range, and the battery needs regular maintenance.

In general. The battery range is not too far, {36V up to 30 km. The distance of 24V is only about 20km}. And battery replacement when the price is expensive! The selected motor is based on brush-less teeth, noise, gear easily broken! In fact, the lithium electric vehicle technology is not too mature, it is recommended that you spend one to two years to buy lithium electric vehicle! Just a suggestion! You buy a car because you like it! The main reason is the lithium battery market time is not long, the failure rate is too high, run the distance is not up to the mileage! In order to save electricity, lithium tram is the choice of brush less motor with teeth, the motor warranty time is short, the gear is easy to break! In fact, it is not urgent to use the words, the proposal after a period of time to buy, because the technology is gradually mature! Xuzhou, Jiangsu, riding a lot of electric cars! I do electric car after - sales service! Can also buy actually! But you must consider good, the cost that changes battery after two years, need 1000 yuan of left and right sides probably! Also let the dealer must be in your car on the bill marked motor replacement time and battery replacement time! Don't just give lip service!

The price is cheap, suit to go to work gens. The price of e-bike is generally around 1000 yuan to 3000 yuan, which is much cheaper than motorcycle.

Advantages and disadvantages of e-bike

2. Tread not tired: because rely on battery + motor drive, need not the foot tread can drive automatically. For people who work hard every day, it is more convenient and relaxed than a bicycle.

Advantages and disadvantages of e-bike

3. Speed fast: although not as fast as a motorcycle, but faster than a bicycle can be much faster.

Advantages and disadvantages of e-bike

4. It's convenient to go to work: if the company is very close to the place where you live, it's still convenient to go to work by e-bike about 5 kilometers. You can also take some luggage, go to the supermarket to buy some food what camel back, very easy.

Advantages and disadvantages of e-bike

5. Easy to learn: motorcycle is not so difficult to learn, as long as you can ride a bicycle, electric bicycle or very fast. The only thing to notice is that you are not familiar with button operation, brake, etc., so be sure to slow down a bit.

Advantages and disadvantages of e-bike

6. Compared to the motorcycle can be much safer: because the speed is slower than the motorcycle, also easier to control than the motorcycle, so the safety can be assured.

Advantages and disadvantages of e-bike

The disadvantages of electric bicycles

Prone to puncture; If it is a better quality e-bike, of course there is no problem, such as 3000 yuan above the e-bike, the quality can be guaranteed.

Advantages and disadvantages of e-bike

Batteries die; If you run too far, or carry too much luggage, it's easy to drain the battery.

Advantages and disadvantages of e-bike

Inconvenient charging; For example, in the road suddenly ran out of electricity, that can only be pushed. If you can step on it, you can step on it. But finding a place to recharge can be tricky. Since it is not as popular as motorcycles and cars, there are not as many charging stations. Of course, it mainly depends on the popularity of electric cars in your city or region. If it is very popular, there are quite a lot of charging stations, but it may be difficult to find charging stations that provide 24-hour service like gas stations.

Advantages and disadvantages of e-bike

Charging is troublesome, especially at night. It is very troublesome to charge the battery and repair the tire: we have to charge the battery every day (or every day or two). Sometimes, when we go home after work at night and suddenly run out of electricity, it may be difficult to find a charging station/repair station for electric vehicles or bicycles. Because they are generally small businesses, it is difficult to serve 24 hours a day. And. Small business, also do not earn much money, the evening guests are very few, so it is difficult to basic 24-hour service. It's not like a gas station.

Advantages and disadvantages of e-bike

Run not far, only suitable for short: electric bicycles because the battery capacity constraints, not as convenient as car burning oil, gas, it's trip in about 20 to 40 kilometers, as far as 80 km basic caps, so it is only suitable for commonly within 5 ~ 10 km activities, if your home from the company within 10 km, with electric cars still basic no problem.

Advantages and disadvantages of e-bike

Serious battery aging: generally, the maximum age of the e-bike battery is no more than 3 years. After one year of basic use, its journey is far less than when it was just bought. The battery of electric car USES a year or so commonly to suggest to change new, if itinerary is short, use time every day little, of course, still can use basically 2 years of above, better battery may be able to be used for 3 years or 5 years is ok also.

Advantages and disadvantages of e-bike

Brake easy not to work: some e-bikes because of cheap price, use of inferior materials, speeding, improper operation, over the design speed, thoughtless and other reasons, may make the brake is not so sensitive. After all, its speed is much faster than that of a bicycle, so if it is used for too long, the brakes may become old and fail.

Advantages and disadvantages of e-bike

Not as flexible and safe as a bicycle: the speed is too fast to control. It's also slightly larger than a bicycle and not as light as a bicycle, so I don't think it's as safe as a bicycle.

Advantages and disadvantages of e-bike

Repair trouble, and the cost is a little bit expensive: compared to ordinary bicycles, electric bicycles generally easy to bad places such as tire puncture, nail, brake not working, turn not working, controller easy to burn, the battery needs to be constantly charged, etc.. It's more trouble than a regular bicycle!

Advantages and disadvantages of e-bike

Easy to steal: batteries, for example, and electric bikes themselves are easy to steal. Now general cheap electric bicycle also needs at least 1000 yuan above, its battery how wear also value 300 yuan or so. It's about as expensive as a cell phone. If the battery case is not locked, or the bike itself is not locked, thieves can easily target it. For example, go to the toilet, go to the supermarket, be sure to park, lock, put the car!

Advantages and disadvantages of e-bike

Matters needing attention

Choose carefully and choose what is right for you

Think carefully and choose one that fits your current itinerary

Be discerning and choose a good brand

Attention maintenance, just need to get familiar with the vehicle

Pay attention to the speed is not too fast, more convenient than a bicycle, but also more dangerous than a bicycle

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