How long is electric car battery life? How much does it cost to change the battery?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - د پورټ ایبل بریښنا سټیشن عرضه کونکی

Although the current disputes are constantly, many owners have seen it, and new energy vehicles are the mainstream direction of the future China auto market. Whether it is from policy or from a strategic transition from catering enterprises, more and more car companies have set up new energy vehicles in this area, and their own brands are more pure electric vehicles as foreign car companies "corner overtake A large shortcut. Perusahaan nasional dan mobil punya pemikiran mendalam tentang seluruh perkembangan industri otomotif, dan kita kentut, dan kalau mobil listrik lebih diperhatikan, tidak baik untuk diperbaiki.

Bagaimanapun, ini berbeda dengan pengembangan mobil tradisional selama ratusan tahun. Mobil listrik menimbulkan banyak keraguan di hati banyak orang awam. Di sini kami menjawab pertanyaan paling umum dari pemilik biasa.

Type and characteristics of the battery? At present, the power battery for new energy vehicles is divided into three-dimensional lithium batteries and lithium iron phosphate batteries. The three-dimensional lithium battery has a representative car with Tesla, Beiqi E200EV, Jianghuai IEV5, Chery EQ, etc. Hal ini ditandai dengan kepadatan energi tinggi, berat volumetrik sama, kapasitas besar, konsistensi baterai baik, dan teknologi produksi matang.

Lithium phosphate batteries have high safety and longer cycle life, and the charge and discharge rate is high, that is, the charging speed is fast, and the acceleration performance is good. Keamanan yang baik, tidak ada masalah dengan tusukan lengkung pada suhu tinggi. Kerugiannya adalah kepadatan energinya rendah.

The same battery needs to use more batteries, which increases the vehicle weight and cost; the consistency is different, there is a better battery management system; the low temperature decline is more obvious, the capacity will be reduced by 10% when 0 ¡ã C Left and right, while the -20 degree capacity reduced by about 30% to the country's largest electric vehicle manufacturer BYD as an example, in the past, BYD, which has realized mass production in the field of lithium phosphate, and starts to turn to large-scale development of lithium in terms of three yuan. For example, the EV models such as BYD Qin, Tang, Song, are all used in three yuan lithium batteries. Therefore, overall, three-dimensional lithium batteries have more obvious advantages in the current policy environment.

How long is the battery life? First of all, let's explain what is called "charge and discharge circulation", the cycle life is 1000 times, is it necessary to charge 1000 times? Not! Just like mobile phone charging, mobile phone power is from 0% to 100% for a charge and discharge cycle, and if only 50%, pull out the socket, meaning only half a cycle. Take the most common three-dimensional lithium battery and lithium iron phosphate battery as an example. The three-dimensional lithium battery is theoretically circulating in the test of about 1,500 times.

The fully charge and discharge cycle is more than 800 times, and the battery discharge is controlled. In the 25% -75% state, the actual use can reach more than 1200 times. Lithium iron phosphate power battery, theoretical circulation life reaches 2,000 times, standard charging (5 hours), can reach 2000 times.

Dalam penggunaan aktual, siklus pengisian dan pengosongan penuh juga dapat mencapai lebih dari 1200 kali. Therefore, it can be calculated in a sport, with a general three-yuan lithium battery electric car, and the actual driving distance of 1 full cycle is about 250 kilometers. Menurut siklus pengisian dan pengosongan penuh, diperkirakan umur baterai dapat mencapai 200.000 kilometer, yang pada dasarnya mencakup masa pakai mobil.

Bagaimana proses pelemahan baterai? Meskipun masa pakai baterai dapat mencapai sekitar 200.000 kilometer, ada standar pertimbangan lain, yaitu, paket baterai akan mengurangi kepadatan energi baterai dengan pengisian dan pengosongan daya. Semakin lama ponsel dipakai, maka baterainya akan semakin tidak terpakai. Jika kapasitas baterai berada di bawah 80% awal, maka baterai tersebut tidak layak lagi untuk digunakan terus-menerus pada mobil, maka baterai tersebut harus diganti dengan yang baru.

Saat ini, data uji redaman baterai yang paling akurat diperoleh, hanya model mereka sendiri yang diterbitkan oleh setiap produsen. According to industry, "General pure electric vehicles are relatively large in the first year, around 8%, but will attenuate 4% in 2-3 years, 5-6 years will be attenuated 1% year later". Dari grafik redaman baterai asing milik Seribu pemilik Tesla, terlihat bahwa ModeS hanya 6% setelah menempuh jarak 100.000 kilometer.

Setelah menempuh jarak 250.000 kilometer, rata-rata redaman baterai kurang dari 10%. Meskipun ada pula redaman abnormal pada masing-masing pemilik, namun amplitudo redamannya tidak besar. Ketentuan garansi pabrik mana yang menjadi garansi? Saat ini, menurut negara, pelemahan kinerja baterai dalam masa garansi tidak boleh melebihi 20%, jika tidak, pabrik bebas mengganti baterai untuk pemiliknya.

Require new energy car key components (battery, electric control, motor) to provide no less than 5 years or 100,000 kilometers warranty, and since 2016, it offers no less than 8 years or 120,000 kilometers warranty. For example, Tesla's drive and battery warranty is an unlimited mileage; BYD provides 8 years or 150,000 kilometers of warranty, lifelong electric core, Geely, North Stroke new energy is also available for battery pack for 8 years Or 150,000 kilometers warranty; Roewe offers 8 years or 120,000 kilometers warranty for the battery pack. Apakah redaman baterai termasuk dalam rentang garansi? Saat ini, berdasarkan peraturan nasional, selama masa pakai (8 tahun / 120.000 km), kinerja baterai tidak boleh melebihi 20%, jika tidak, produsen bebas menggantinya.

However, if the battery attenuation is normal, the manufacturer generally does not replace the battery. Jika Anda menemui baterai, masa pakainya tiba-tiba berkurang, dan ini adalah fenomena yang tidak normal. Vendor akan mengganti paket baterai untuk kendaraan selama masa garansi.

Karena perkembangan kendaraan listrik murni dalam beberapa tahun terakhir, telah berkembang pesat dalam beberapa tahun terakhir. Therefore, the case of replacing aging batteries is also very ever. Taking BYD as an example, BYD Mth said that "The normal attenuation range of BYD battery is mainly determined by the manufacturer, we have the test after the battery is detected, and then the manufacturer determines whether the car belongs to normal attenuation, if it is in the normal range Decay cells, do not provide free replacement battery pack services.

Karena proses ini tidak transparan, artinya, redaman baterai tidak boleh diubah oleh pabrikan, melainkan oleh perusahaan mobil. How much does the battery replacement need? The price of battery packs is currently not public, according to various websites such as lithium-grid, currently power battery production costs in 1300 yuan / degree, and the price of the car is 1,700 yuan. Namun dari pemilik pengganti, harga penawarannya, harga ganti aki BYD Tang lama lebih dari 50.000 yuan.

Overseas Nissan released a daily hearing battery replacement plan and price in March 2018. Pemilik Nissan membeli baterai mobil asli baru 24KWH, 30KWH dan 40KWH, harga pembayarannya adalah 650.000 yen (sekitar 40.000 yuan), 800.000 yen (sekitar 49.000 yuan), 820.000 yen (mengikat 50.000 yuan). Since the trend of the electric vehicle has been raised in recent years, many models on the market have not replaced the battery pack of the battery pack, so there is no case in which a lot of battery recession has occurred.

According to the national warranty period of 8 years / 120,000 kilometers, electric vehicles have enough guarantees for battery packs. On the other hand, the manufacturer's implementation has its own set, and the detection of battery performance attenuation is that the manufacturer has said, and there is no public transparent standard. And if the owner has questions that you need to find agency test, the fees must be saved by themselves, feeding the gods, easy to use the car.

What should I do if the battery decline is serious after shelf life? This many manufacturers have not made a clear answer, adopt a fuzzy attitude, generally adopt "technology constantly updated iteration, and the battery cost will be more cheaper". This is undoubtedly "painting big cake", which has also created the no trust of electric cars.