Chapter 434: Gel Lithium Battery [Fourth Monthly Pass]
It's more fierce, there are two more, everyone give a lot of effort!
This Jin is really unfathomable, can't see through, can't see through, okay, he's not in a hurry to leave now, then take him around again, and see what else can be taken out of his mouth?
If there is, then it's best, this guy, a few words come out of his mouth, and the impact on his own laboratory, it's all **!
Bin Xinwei also came to his senses at this time, and was not in a hurry to do the experiment, but calmly took Jin Xiaoqiang and began to walk around.
The first floor of the battery laboratory covers a large area, and the two rooms on the sunny side are reserved for the positive and negative electrode laboratories of the battery, while the north-facing side is reserved for the electrolyte laboratory.
Now people say that lithium batteries are actually very different from real lithium batteries, and now lithium batteries should actually be called lithium-ion batteries, and there is no lithium metal in the battery at all, and lithium-containing compounds are used.
If you want to talk about pure lithium batteries, how can you go back to the Edison era, Edison invented the pure lithium battery, but his old man used lithium metal as the negative electrode of the battery, but because lithium metal is too chemically active, it is very easy to catch fire or explode, so since then, lithium batteries have always existed in legends, and have not been promoted and developed on a large scale, just because it is too dangerous.
It is not until recent years that mankind has slowly entered the post-oil era, with the increasing depletion of petroleum energy, human beings have begun to ponder and develop the next generation of alternative energy, so the concept of lithium battery has been hyped up again.
It's just that this time human beings are much smarter, learning from Edison's experience when developing lithium batteries, and began reverse research and development, no longer directly using lithium metal, but using lithium-containing compounds, and using this substance as a positive electrode, and graphite is used in the negative electrode.
Through the principle of potential difference, the charged lithium ions are constantly shuttled between the positive and negative electrodes to complete the charging and discharging.
That is to say, in the process of charging and discharging, lithium ions still have to pass through some media.
At present, as far as the research and development of lithium batteries is concerned, it is mainly focused on the field of small batteries, and people mainly hope to improve the efficiency of the batteries used in mobile phones or laptops with the help of this kind of battery.
As for the research and development of lithium batteries used in large-scale hybrid vehicles, it is still in the exploration stage, because there are still many lithium battery research and development companies, and they have not figured out what kind of material should be used as the positive and negative electrodes of lithium batteries.
In terms of the first generation of lithium batteries that will be launched next year, the positive and negative electrode materials of lithium batteries will be revealed, which will also provide opportunities for many lithium battery manufacturers.
People have made it clear what materials are the most suitable for the positive and negative electrodes of lithium batteries, and the rest is to work the electrolyte.
After all, the electrolyte is a very important component that can affect the charging and discharging efficiency of the battery, as well as the power it carries, and it can directly affect the quality of a battery
Now Jin Xiaoqiang wants to take a look at how far Binxin Micro has developed the lithium-ion conduction medium of lithium batteries.
"This is our medium R&D center, the current lithium battery research and development purpose in the world, mainly for mobile phones or laptop batteries, but our battery research and development center, since its inception is to provide lithium batteries for hybrid vehicles as the main purpose, so the current world's mainstream research and development direction, and ours is not the same, but they also have that part of me to do, and did not pull down, so here is also divided into two parts, one part is to develop the kind of mobile phone or laptop battery, There is also a part of the development of media specifically for use in hybrid vehicles. …,
Bin Xinwei pointed to the two large cloudy laboratories on the north side of the corridor and introduced them to Jin Xiaoqiang.
Well, the direction is right, but I don't know what steps you have developed, where it has been, Jin Xiaoqiang nodded, indicating that he heard Bin Xinwei's introduction, and secretly pondered in his stomach.
"Mr. Jin, our medium R&D department is divided into two departments, one department is specifically for the research and development of the conduction medium of the battery required by hybrid vehicles, and the research and development direction of this department is mainly to use electrolyte. The R&D direction of the other department is to carry out the R&D direction of solid and gel-to-point media, which is also in the initial stage. The main reason is also because the two stages of our battery have not been determined, but today, after your prompt, it has given me a lot of inspiration, and I can basically determine the research and development direction of the cathode of lithium battery in our battery research laboratory, and the remaining electrolyte part is believed to be completed in a short time. ”
Bin Xinwei explained to Jin Xiaoqiang with confidence.
"Well, by the way, since the positive and negative electrodes could not be determined before, the electrolyte required by large lithium batteries could not be determined, so the solid conductive medium of small batteries should always be determined, right?"
Jin Xiaoqiang asked casually, and the bin Xinwei next to him was speechless, this boss, where does he not understand at all, does this clearly understand everything!
Indeed, the electrolyte of lithium batteries is actually divided into two kinds, one is liquid, the other is solid and gel, and the principle of liquid electrolyte is actually the same as that of batteries, mainly for large battery packs, that is, large batteries used in hybrid vehicles.
The solid electrolyte, in fact, for the small model of lithium battery to be used for mobile phones or laptops, such batteries have actually been studied by the Japanese for some years, and even have begun to be promoted on a small scale, but because the material of the cathode has been being developed and improved in recent years, this kind of battery has not been promoted on a large scale.
But it's no secret that the solid-state electrolyte of this small battery is actually not a secret!
The meaning of Jin Xiaoqiang's question is that your large battery electrolyte can not be made out because the materials of the positive and negative electrodes of the battery are not clear, but now the battery technology of the Japanese should be no problem!
You must know that the Japanese have been used in mobile phones and laptops for quite a few years.
"Well, the electrolyte of this solid-state battery has actually been figured out, and it can be manufactured now, in fact, the solid electrolyte used in the lithium battery is actually Kun O polyethylene oxide.
This material has been used by the Japanese for a while, and we can basically make it now, but we are now developing a process to make this solid electrolyte in large quantities, and once it is successfully developed, we will be able to produce this substance in large quantities. ”
Bin Xinwei hurriedly accosted Jin Xiaoqiang to explain.
Well, it sounds like it's still going on, it seems that these people haven't been raised in vain, but this solid electrolyte is only suitable for use in mobile phone batteries, or laptop batteries.
The real use of hybrid vehicles is not big at all, and for the lithium batteries required by hybrid vehicles, in fact, liquid electrolyte and gel electrolyte are the key.
In particular, the gel electrolyte, which is the key to the lithium battery to be used in hybrid vehicles in the future!
The earliest lithium batteries used in hybrid vehicles were actually the first to use liquid eel hydrolysate, which is composed of a lithium salt-based electrolyte and carbonate-based non-aqueous organic solvents. …,
However, the state of this liquid electrolyte is very unstable, which requires a very safe working environment, and if you are not careful, it is very easy to cause combustion or explosion.
Once a hybrid vehicle is hit and tumbles, causing electrolyte leakage, it is very easy to cause combustion and explosion of the car.
This is mainly because the organic solvent of this carbonate contained in the electrolyte is a very flammable substance, and the lithium-containing material as the cathode of lithium batteries is very active in lithium-ion ions.
When this cathode is working, it is very easy to release oxygen, and once this travelogue solvent is in full contact with oxygen, it will release a large amount of heat and gas.
In this way, the heat and gas generated will further aggravate the decomposition of the cathode of the lithium battery, causing a vicious circle, so that when the temperature reaches the melting point of the electrolyte, it will lead to combustion or even explosion.
The combustion explosion of YD's electric car in later generations, the combustion explosion of Chevrolet's Voranda, and other lithium battery combustion and explosion accidents are all due to this principle
So even seven years later, when people are promoting hybrid vehicles in large numbers, consumers will not dare to buy such hybrid vehicles using liquid electrolytes on a large scale because of concerns about the safety of lithium batteries.
It wasn't until later that a large number of gel electrolyte lithium batteries were popularized, which made hybrid vehicles safer.
Therefore, at this time, Jin Xiaoqiang paid great attention to the research and development of this gel electrolyte battery, because in his opinion, only such a gel electrolyte lithium battery would be the king of hybrid vehicles in the future.
A few years later, it was Hyundai, which drew a lot of nutrients from the Celestial Empire market, that it was the first to assemble a gel-type electrolyte lithium battery into a hybrid car.
However, in today's modern times, Huayang Power has been beaten by falling flowers, and there may not be too many opportunities for such leapfrog development.
And with Jin Xiaoqiang, such a person who is against the sky, Huayang Power is likely to become the first company to bring this kind of gel battery to hybrid vehicles! )