Lithium batteries are better than nickel-metal hydride batteries. 1. Volume: Rechargeable lithium batteries are widely used because they have the advantages of smaller size (relatively), lighter weight, low self-discharge rate and no effect memory. Ordinary nickel-metal hydride batteries are used in many new mobile devices. The batteries of cell phones, laptops, PDAs and other mobile devices that we usually use have gradually been replaced by lithium batteries.
2. Electricity: Lithium batteries have high specific energy and are compact; the voltage of a single lithium battery is three times that of a nickel-metal hydride battery; there is no memory effect and can be charged; at any time.
3. Charging Method: Battery charging requirementsLithium eries are different from those of nickel-cadmium/nickel-metal hydride batteries. The voltage of a rechargeable lithium battery cell is 3.6V (some battery packs may be). nominally 3.7 V). As the power supply is fully charged, the voltage of the lithium battery will slowly increase, which also indicates whether the lithium battery is full. Typically, manufacturers recommend a charging shutdown voltage of 4.2 V (for a single-cell lithium battery). . Lithium batteries are generally charged using the voltage limiting and current limiting method. If a friend wants to charge the lithium battery independently, it should be noted that its charging method is different from the constant current charging method used for ordinary nickel-metal hydride batteries. Nickel-cadmium/cadmium charging methods cannot be used.Charger for NiMH batteries.
When the Tesla CyberTruck begins official delivery in the second half of 2021, it is expected to become the world's first mass-produced solar pickup truck, as it can be equipped with solar roof panels in option to Provides sunlight, providing a range of 15 miles each day.
Tesla is perhaps the most suitable automaker in the world to launch solar cars, because in addition to its automotive business, Tesla also has an energy storage business, including solar panels. As early as 2017, Musk urged Tesla engineers to consider integrating solar panels on the Model 3.
The CyberTruck, known as the Mars Model, will be Tesla's first solar cell model. Its large-area cabin roof design is very conducive to the installation of solar panels. It will also complete an important part of Musk's quest for a nnew energy territory - solar panel roof + energy storage battery + electric vehicle + solar vehicle.
Tesla was not the first to try to produce solar cars. Traditional automakers such as Toyota and Hyundai, as well as startups such as Sono Motors and Lightyear, have launched similar products.But Tesla is. expected to be the first automaker to mass produce and market it, as Tesla owns SolarCity.
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Cars can be driven in the sun without refueling or recharging. This is an idea of humanity's use of solar energy.
As early as 2010, the world's best-selling hybrid model, the Toyota Prius, had optional solar panels. Later, this optional feature was canceled until 2010. Returned to the Toyota Prius Prime lineup in 2017.
In 2010, the Toyo's solar panelsYour Prius only powered the vehicle's 12V lead-acid battery. Because direct battery power from the hybrid system would cause wireless interference to the car audio system. it was not used. It doesn't provide much help for vehicle battery life. The 2017 Prius Prime's solar panels can power the hybrid system's battery.
The 2017 Toyota Prius Prime is equipped with an 8.8 kWh battery that can provide 22 miles of range on a single charge. When the solar panel charges the battery, under ideal conditions it can travel every hour. day It can provide a battery range of 2.2 miles. The 2020 Sonata Hybrid launched in South Korea in 2019 is also equipped with a roof-mounted solar charging system. This is the first generation system installed on modern mass-produced models. It can only charge 30-60% of the battery1.76 kWh. pack in 6 hours of electricity. Currently, second and third generation rooftop solar charging systems are under development.
Startup Sona Motors is preparing to produce a Sion EV solar cell car. Its rooftop solar system can provide 21 miles of range per day while another startup Lightyear said it was installed in its first Lightyear model; The solar system on One has a charging speed of 12 km per hour. This is a shocking fact, we will wait and see. Car Sion EV plans to start mass production in the second half of 2020, and Lightyear One plans to start delivery in early 2021.
As for the Tesla CyberTruck, which will be delivered in the second half of 2021, it currently holds orders for more than 500,000 vehicles and plans to provide an optional solar charging system upon delivery, which should make this possible. provide 15 miles per day.There is currently no optional pricing for battery life. Previously, the price of the optional solar system for the 2010 Toyota Prius was US$2,000. I think the price of Tesla's optional solar battery system should be lower, because Tesla has the most efficient solar panel technology among global automakers.
In November 2016, Tesla acquired Sola City, another company owned by Musk, a leader in the residential solar market in the United States. Musk wants to build an energy ecosystem: electric vehicles – home batteries, solar panels, smart devices and mini/micro-grid energy management software.
Tesla and SolarCity can produce huge chemical reactions. In 2017, Musk began urging Tesla engineers to install solar panels on the Model 3. Four years after its release, the Model 3 became the pure electric vehiclethe best-selling in the world. Electric car models.
The Model 3 did not become the first Tesla model equipped with solar panels, and the latest mass-produced CyberTruck model will be equipped with them. Tesla's solar panels will extend from the roofs of every home to Tesla's mass-produced models. As the scale expands, Tesla's solar panel technology will expand and its cost will inevitably decrease, which means higher charging efficiency and lower unit cost of electricity.
In the future, perhaps all mass-produced models by Tesla will be equipped with solar battery systems as standard, because at present, the cost of Tesla's solar systems may be entirely supported by users, its solar energy. the panels can cover the roof, hood and other places.
We can imagine that in the future, a typical American user of Tesla will install the Tesla SolarCity solar cell roof for his independent residence, equip it with his Powerwall home battery and drive a Tesla all-electric car. are purely electric vehicles equipped with a standard solar battery system. In addition to being recharged daily by the domestic electrical ecosystem, they can also be replenished by solar panels.
From a broader perspective, Tesla's home electric ecosystem is a microsystem that will complement the national grid system. Currently, Tesla is promoting this system in the United States and recruiting solar-related employees in China. She also hopes to promote a similar system in China.
You know, photovoltaic solar panels in China are also developing rapidly. As for Che Zhijun, solar street lights and night lights have already appeared every day, according to thee time. It is dark When it is dark, it begins to light the way and pass through human life. Take a night light as an example: a solar night light costs 100 yuan. It can illuminate any place where sunlight can reach it. It has a lifespan of approximately 2 years and costs less than 15 cents per day. is higher.
The scale of human use of solar energy will rapidly expand with the development of solar roofs, solar street lights and night lights, solar cars and larger-scale solar photovoltaic power plants . The future of clean energy could be bright.
Musk said, sorry, Tesla is ahead of any automaker or energy company when it comes to using solar power.