to charge or to swap: that is the question for evs - battery energy storage

TOKYO --
How long does it take to fill the car with gasoline? Five minutes?
At that time, it was time for electric car manufacturers to hope to charge quickly.
This is technically feasible, but it is actually very difficult.
Better Place in California
Global-based electric vehicle charging companies are pessimistic about fast charging.
Therefore, it has developed a "battery swap" program, which is at the heart of its network program in parts of Israel, Australia, Denmark, Canada and the United StatesS.
At a battery Forum in Tokyo, the company has just launched its first exchange station for Fujii Qingyan, president of Japan's better place, the three companies of Nissan taxi, explain the idea of the company. The [switchable-
Electric taxi
Taxis developed for this demonstration can be driven through our battery switch station, replacing depleted batteries with fully charged batteries in less time than it takes to refuel atank.
This allows electric vehicles to run continuously, which is absolutely necessary for taxis.
So far, we can switch.
Electric taxis transport passengers in Tokyo.
This is a major achievement in promoting environmental sustainability, but it also shows how electric taxis can become economical (
Sustainable development, therefore)inthe long run.
Debate on fast
Charging is not new.
As early as 1998, GM and Edison in Southern California took 50kilowatt-hour quick-
Charging station for electric Chevrolet S-refueling1-or its EV-1 from near-
Almost full in 12 minutes.
But the charger needs to be heavy.
Not only on cars, but also on duty lines in the grid, the General Electric Vehicle program has never been used regularly.
Google Cloud service outage missing connadik state mom Virginia Beach shooting protesters interrupting Harris's general assumption is
Box stores such as Best Buy, Home Depot, will offer a quick charge in the parking lot, or maybe even free, as it will attract consumers who shop while waiting for the car to charge.
But a quick and informal survey shows that there doesn't seem to be a major chain store ready for such a plan.
Better Place to dismiss the prospect of five peopleCharging minutes
According to Michal Vakrat Wolkin, the company's energy storage technology director, "five-
The minute fast charging battery pack will be heated to destroy the life of the battery.
Another problem is the capacity of the grid-
If you use 300 KW of the electricity per car, only two cars are equivalent to an office building.
We think changing the battery is a better option because it doesn't matter whether your backpack takes five minutes or eight hours to charge, because you change the battery in less than a minute.
"Evan Thornley, CEO of a better place in Australia, said,
Fee-charged meetings may gather later in the afternoon or earlier in the evening--
"At the worst of the grid.
The average substation is only two to four megawatts, so there are only seven cars using 300kilowatt-
The power of the entire suburb will be taken over in a few hours.
There is a safety problem with holding the wire and a lot of juice goes through the wire-
I don't want my baby or I handle a plug like this.
"HSBC believes in the company's batteries --swapping model;
The bank has just raised $0. 35 billion in equity financing for Better Place.
According to Mark Norbury, chief investment officer at HSBC, "We can't find any experts to say five-
Fast charging in minutes is feasible.
The grid and the government cannot allow this to happen.
Imagine millions of cars. -
Equivalent to millions of office buildings-
Switch every five minutes.
However, some car and battery makers say fast charging is feasible.
Altair nanotechnology said in 2007 that it-kilowatt-hour nanotech-
Enhanced lithium
The ion package has an unusually stable chemical reaction, which can be quickly
No damage charge within 10 minutes.
According to Jonathan Reid, CEO of the eco-charging network (
Cooperate with Nissan to launch Leaf
, "Fast charging takes 10 to 15 minutes, which will not be much faster or slower than replacing the battery, and of course there will be much less moving parts and potential points of failure.
"In fact, this is the key to the argument: better place to say that it will fill up soon --
Ups will never be available, and fee companies like ECOtality say they will.
The California Aviation Resources Board has set a goal of charging 80% in 10 minutes, and supporters say that while consumers may never be able to handle this amount of current at home, it can work in those big public places.
Parking lot in lattice shop. Utilities (
Because they are going to provide new sources of revenue, which really likes electric cars)
I have supported this charge plan in principle so far, but it is not clear if they are preparing for an additional large charge plan
They will represent the load.
Photo: Jim motavali (top)