United States Pacific time April 30 at 20 o’clock, electric car maker Tesla announced the launch of a new product “Tesla Energy” battery pack.
Household electric storage batteries of the Tesla called “Powerwall”, is a rechargeable lithium-ion battery, usually installed on the walls of the family. Can be charged at the trough in electricity demand low prices, electricity prices higher demand during peak output power can also store excess solar power, for use on cloudy days and in power provide power protection.
Storage products may no concept for Chinese people, but for the sparse population and often suffer power cuts of Americans is not new. Household storage products in addition to dealing with power outages, also makes family solar, wind power possible, lay not in some grid areas, distributed power plants instead of centralized power supply will also be an option.
But electric cars on a tall, to home Powerwall, the span look a bit large, why did Tesla will do this kind of thing, and Tesla’s strategy is what does it matter?
, Tesla’s core technology
Tesla in the electric car industry fame over the years, in addition to the capital operation of smart, PR-use good, strength of the product itself is worth saying.
Tesla electric car can stand out from the numerous electric vehicle, one on its mileage, and the other is its acceleration time. Electric cars generally replaced in other manufacturers to buy food when Tesla did was super car, Coupe lines. Juicy Couture iPhone case
Electric vehicle mileage and Acceleration time is not falling out of the sky, mileage batteries have a higher energy density, acceleration time of battery power density. Tesla more than competitors because it dares to use larger battery energy density.
Initially, Tesla is very dangerous lithium cobalt oxide batteries, later upgraded into ternary lithium-ion batteries, while rivals with greater security, but the lower energy density of lithium manganese oxide or lithium iron phosphate battery.
High risk of battery energy density, but it’s easy to fire, for electric vehicles, this is very dangerous. Tesla cattle out of a reliable battery management techniques to prevent the occurrence of hazardous, this is Tesla’s core technology.
First of all, Tesla’s choice had 18650 battery cost and on the market after selection, choose consistency best Panasonic battery, a single 18650 battery energy not even dangerous as long as it doesn’t cause a chain reaction would not cause too much trouble.
Then, Tesla out of a battery management system, repeating group close to 7000 18650 batteries, each layer management, software technology to ensure consistency of the charging and discharging the battery to avoid danger.
In order to prevent the battery temperature is too high and the difference is too large, Tesla has also prepared a cooling system, with different temperature of cooling fluid balance between the battery to prevent dangerous temperature difference.
Finally, in order to prevent puncture the battery caught fire, Tesla also made unusually strong body and collision protection, protect the battery pack.
So the Tesla electric car looks awesome, but what really makes him stand out is his battery management technologies, this technology can be used to home storage above.
Second, from electric cars to household storage
Home energy storage may feel there is no need for Chinese people, days without electricity, after all, it’s been a long time, but for American blackout was three days old.
On April 7, 2015 at about 1 o’clock in the afternoon, Washington DC Downtown sudden blackouts, including the White House, Congress, the State Council and other confidential government departments in about 2000 units of electricity are all affected. A journalist published photos show power, State Department Deputy spokesman Mali·hafu held a press conference. She had to use her cell phone on the lamp.
United States like this, not to mention third-world countries. Home storage while the Chinese seem misplaced, but for people in many countries are very useful products.
Energy storage device is actually a large battery, needs battery, battery management technologies, Tesla’s core technology used at the time.
In fact, traditionally, the battery has the step problem. Electric cars to run, not too heavy, very high standards for the energy density of batteries. Energy storage power station is fixed, you can compare large heavy, electric losses out of battery energy storage power station is fully qualified.
So Tesla home battery technology has advantages and can recycle old batteries in the supply chain, can be described as a matter of course.
And Tesla are United States Nevada desert to build US $ 5 billion worth of the world’s largest battery plant, is expected to be opened in 2017, home power plant demand for batteries, to avoid changes in electric-car sales the risk to industry chain.
Third, just the beginning of change
For the Tesla, try home energy storage may be just a start. Once the Tesla battery operation, Tesla also tried a lot. Power system itself requires huge energy storage power station, to solve the problem of peak generating this tremendous market than home users.
Tesla’s battery technology combined with high performance and low cost of the battery, is also competitive in this market.
In the electric car industry, not just car needs, electric bus, electric trucks, forklift trucks also requires a high-performance battery pack, Tesla can be involved in these areas. Juicy Couture iPhone case
To individual users, home energy storage in addition to dealing with power outages, also makes family solar, wind power possible, lay not in some grid areas, distributed power plants instead of centralized power supply will also be an option.
Tesla’s involvement in household storage, is an extension of their technical and industry chain of results, but its impact is as far-reaching as Tesla Motors.
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