Everything you need to know about lithium-ion batteries – but which car makers forgot to tell you

We\'re talking about lithium.
Ion (abbreviated as Li-
Ion) battery, when someone with a title like corr tells you something very complicated, you \'d better believe it.
These are the batteries that power almost everything these days;
In addition to your phones, computers and power tools, they can drive almost all the batterieselectric cars.
Here, we will enter the core of this technology.
Battery life and the degree of degradation of the battery determine the service life of your electric car and how much someone is prepared to pay the next day
On the other hand, this determines the cost of ownership and monthly cost of the personal contract purchase plan (PCP.
At present, the value of used battery cars is very low and disturbing because the second-hand market does not know the technology and cares about what will happen after the battery warranty expires.
This is a topic that scares automakers.
From a width without a script
At this year\'s Jaguar I-Jaguar press conference, a series of breakfast conversations were held with Dr. Wolfgang zimbart of Jaguar Land Rover
Pace acknowledged the issue and hinted that it might help if all used battery cars come with a separate report on battery health, in addition, it is also necessary to educate the public on how to provide battery services by replacing a single battery.
However, when we formally asked Jaguar if it would provide an expert for the article to be interviewed, we received the following reply: When you start your life, the battery can be driven and used.
Any benefit of change, your way of charging and driving is very insignificant and will completely keep you away from the driving experience and live with the battery --
Electric vehicles (BEV), especially I-Pace. âx80x9dHum.
Therefore, when the warranty of ipace is 90 KW, lithium-
Ion batteries (consisting of 32 LG Chem bag batteries) are eight or 100,000 miles, which can be redeemed if a fault occurs or if the battery is below a healthy state.
After that, you can live by yourself with the battery you failed;
One problem Jaguar seems to be dealing with is not to think too much about it.
In essence, lithium
The ion battery mainly consists of five parts: cathode; anode; separator;
Current collector;
And electrolyte.
Lithium is stored in the anode and cathode, and the electrolyte is positive-
Lithium ion live travel.
So when you charge the battery, the positive (or cathode) gives up some lithium ions that go through the electrolyte and separator to the negative (or anode ).
When you discharge the battery, these lithium ions move from the anode to the cathode, generating an electronic stream through the device you supply with the battery (here is the motor. In a lithium-
The process of ion batteries is reversible in many cycles and years. In addition, Li-
Ion batteries carry more charge at less weight than alternatives such as leadacid or nickel-metal-
So they are used to drive cars.
But as Corr explains, the charging/discharging process has no effect on the health and longevity of the battery.
The material that makes up the electrode is usually layered, for example, the cathode material can be lithium nickel manganese cobalt oxide (NMC), she said ).
One can imagine this cathode as a stacked paper, and lithium ion can be inserted between the stacked paper.
As the material goes through multiple charge and discharge cycles, there are mechanical and chemical processes that can change the cathode and cause it to degrade.
These can take the form of atomic re-arrangement, volume change and even particle cracking.
There is also a process in which the reaction of the electrolyte can lead to permanent coverage of the electrode part, which may reduce its ability to hold ions and thus its ability to hold charges.
This is also affected by the way you treat your batteries.
There are many problems that can affect degradation, such as reactions to external stimuli such as temperature, charging, and pressure, Corr said. âx80x9dKeeping up?
As Corr explains, this is just the beginning: every set of battery chemistry has its own challenges.
Her job is part of the UK-
Through extensive collaboration funded by Faraday institutions, attempts are made to understand the degradation of electric vehicle batteries and to avoid pathways and practices that lead to this.
She said that car batteries are turning to the cathode with a high nickel content, reducing the cobalt content, in part because the cost of cobalt has risen sharply over the past few years, as well as ethical issues with the extraction of cobalt.
To extend the life of these batteries, car battery manufacturers use additives on the electrolyte or coating on the electrodes to protect them from degradation.
Corr said that part of the work we are doing is to develop coatings that can prevent degradation and to study the effects of nano-structures on the degradation mechanism.
Our research team in the UK has the expertise to evaluate these degradation mechanisms from atom to battery pack levels and provides strong insights on how to avoid degradation.
While all this could have made the rich extremely interested in the early adop of the battery
Electronic Technology is the most advanced for most people. close-and-
Li\'s personal experience
Ion batteries are with their cell phone batteries, and even after the first year of use, the batteries are significantly degraded, which may be understandable when you expand the car-related issues, there will be a certain degree of doubt. . .
Daimler eDrive development director Jochen Hermann agreed, but pointed out the difference between cell phone battery and battery --electric car.
With laptops or mobile phones, people squeeze everything, all the energy, in this very small place.
It\'s not hot.
Control, charging depends on the content and time you insert, sometimes the current changes and charging are done at the edge
That\'s why you see a rapid drop in battery capacity for your laptop or smartphone today.
He said battery management for automotive applications is comprehensive, based on key determinants of temperature, pressure and charging rate: the battery management system, which is the key, he said.
In terms of software, but also in terms of hardware.
How do you control the temperature, how many kWh do you install, how many kWh do you use, and how you use it.
There is also the energy and specification of the battery, which is difficult and more expensive.
Considering that lithium is currently being installed in the industry-
An ion battery of $140 per kilowatt, in addition to this, the price of battery management is very expensive.
As Klaus fridges, bmw\'s R & D director, recently told us: \"I can look at every cell and how it\'s aging.
He believes that by 2025, the battery capacity will increase by five times-
An electric vehicle capable of traveling 430 miles between two charges.
But how long-
How much does it cost?
Maybe we have to learn how to take care of our cells.
Corr said: can you consider things that increase battery life?
First, charge to 100;
Being fully charged can give you a good feeling, but it\'s not necessarily a good thing for your battery.
She explained that 100 of the charge puts pressure on the cathode: The battery is under a lot of pressure.
They don\'t like extremes very much.
She recommends charging only 50 to 80, and even in cars that often have software that limits the proportion of battery capacity, it can be used for longevity.
If you commute less than 100 a day, then I will avoid fully charging the battery and keep it in a lower range, like charging 50 to 80, trying to extend your battery life.
I will also try to avoid discharging all the way to zero, as this will also lead to increased battery degradation.
I can understand the desire to be fully charged, but when we get into a more charged world, we may have to charge smarter and maybe limit the battery to 80 cents, the charge then stops automatically.
She also suggested that maybe we need to choose electric cars according to our needs so that we don\'t need to charge them every night.
This presents interesting ideas for buying excess capacity for longevity.
So you need a different amount of battery capacity, and if you go to Aberdeen a lot to run instead of going to Glasgow --
City vehicles, says Cole.
Extra capacity is not a bad thing.
When we use renewable power for a new generation of batteries --
Electric vehicles are becoming more and more accustomed to the idea of efficiency obeying environmental benefits, but we still need to solve some problems. Lithium-
Ion batteries are not an environmental or moral free lunch, whether in the power to charge them or in the elements they make --
Up (usually from some of the most exploited and dangerous places in the world) or rare-
Enter the Earth elements of their power motor.
Lithium is dangerous, reactive in the air and difficult to recycle, so as a safety measure, many batteries end up in landfill. Battery-
If the technology is to be completely out of the market, electric cars will have to be more popular than used cars, depending on how we take care of them, the car manufacturers are able to serve them and have long-term
Take care of their semester plan
Not only at the new time, but also the day after the end of the warranty period.
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