I Found A Planet

In 1799, the Italian physicist Volt immersed a zinc plate and a tin plate in salt water and found that a current flowed through the wire connecting the two metals. So he put flannelette or paper soaked in salt water between many zinc sheets and silver sheets, and stacked them up. When you touch both ends with your hands, you will feel a strong current stimulation. Volt used this method to successfully make the world's first battery ─ ─ "Volt stack."

Therefore, the battery has a history of more than two hundred years since its inception.

But more than two hundred years have passed, unlike Moore's Law, the energy density of batteries has not improved significantly.

The earliest widely used battery is carbon-zinc battery, its energy density is about 30-100Wh/kg, and it is characterized in that it can only be used once, but the price is low.

The subsequently invented lead-acid battery is more widely used, with an energy density of about 60-120Wh/kg, but it can be charged and discharged repeatedly, and the price is cheap. It quickly became the mainstream and has been popular for hundreds of years, and it has not been eliminated yet.

However, the energy density of lead-acid batteries is too low, so lithium batteries came into being in the 1960s, with an energy density of 150-250Wh/kg, which is twice that of lead batteries.

The energy density of some high-performance lithium batteries can even reach 300Wh/kg, and it is theoretically possible to reach an energy density of 1000Wh/kg.

But a theory is just a theory.

In practice, the energy density of lithium batteries is difficult to exceed 350Wh/kg.

It can only be regarded as a "semi-high energy battery".

And due to reasons such as technical complexity, safety, and production costs, lithium batteries were not widely promoted until the 21st century, and gradually became the mainstream.

In addition, there are many development paths for batteries. In the future, several types of batteries with higher energy density, longer life, and safer batteries are being researched and developed by institutions.

Such as metal-air batteries.

A representative of such batteries is a zinc-air battery. The specific energy of zinc-air batteries is 4 to 6 times that of lead-acid batteries, and twice that of lithium-ion batteries. The maximum range of electric vehicles powered by them can reach 400km.

Zinc-air battery manufacturing process is simple and low cost. The cost of large quantities is about 300~500 yuan/kVAh, which is lower than that of lead-acid batteries. And safe and reliable, even if the outside encounters open flames, short circuits, punctures, impacts, etc., it will not burn or explode.

But even with so many advantages, zinc-air batteries also have some fatal disadvantages. Its use cost is relatively high, and the charging process is complicated; the actual service life is short, 1 to 2 years, which is not mainly due to the poor electrochemical performance of the battery. , but the impact of the structure of the battery; the mass production process is not mature enough. This is mainly the manufacture of catalytic membranes and waterproof and breathable membranes, most of which require semi-mechanical operations, and there are some manual factors that lead to differences in electrode performance.

Therefore, the promotion of metal-air batteries is still relatively difficult.

In addition, there are at least dozens of batteries such as all-solid-state batteries, nanocrystalline lithium-ion batteries, fuel cells, etc.

Some of their energy densities have reached 500Wh/kg, some have announced that they have exceeded 800, and some have exceeded 1,000. It is exciting, as if seeing the hope of the era of high-energy batteries.

But...but it's not the same.

Laboratory performance is not equal to actual performance.

Products in the laboratory may not necessarily become market products.

In the current market, the commercially available battery with the highest energy density is a ternary polymer material (Li(NiCoMn)O2) composed of nickel-cobalt lithium manganese oxide as the positive electrode.

In this type of battery, a domestic manufacturer combined graphene technology to achieve the world's highest energy density of 550Wh/kg. At that time, it caused a sensation all over the world, and it was believed that the era of new energy was coming.

But this joy may be too early.

Because the energy density of gasoline is as high as 12000Wh/kg, the energy density of the best ternary battery is only 4.58% of that of gasoline, which is less than one-twentieth.

Ternary battery technology is far from being able to replace traditional energy sources.

Just saw a glimmer of hope.

The successful development of Xinghai Technology's "High Energy No. 1" battery directly fulfills this hope.

inside the research center.

Zhao Qiang, who is in charge of the project, said excitedly: "Mr. Chen, we have achieved an amazing breakthrough in battery technology!"

"First of all, our 'High Energy No. 1' is not a traditional liquid or semi-solid battery, but an all-solid battery!"

"All solid-state batteries have the highest safety, impact resistance, high temperature resistance, good stability, and more charging times than other types of batteries."

"For example, the best quality ternary battery has a charging life of 1,500 times. After about 800 times of charging, the battery capacity drops to 80%; while the charging times of 'Gaoneng No. 1' can reach 10,000 times, 5,000 times of charging -After the discharge cycle, the battery capacity will drop to about 80%."

"Moreover, the 'High Energy No. 1' battery integrates the most advanced graphene fast charging technology, such as the 10,000 mAh mobile phone battery in my hand, which supports up to 100 watts of fast charging technology, and only needs 6 In 10 minutes, the battery can be fully charged without worrying about overheating."

Holding the small battery, Zhao Qiang continued: "As for its energy density, due to the use of a brand new nano-polymer material as the positive electrode of the battery, its energy density has actually reached 1500Wh/kg."

"This is six or seven times that of ordinary lithium batteries! It is equivalent to one-eighth of gasoline."

"But in actual use, the energy utilization efficiency of the gasoline burned in the engine is at most 40%, generally more than 30%."

"The utilization efficiency of the battery is generally more than 90%."

"So from the perspective of energy utilization efficiency, the actual efficiency of the 'High Energy No. 1' battery is equivalent to one-third of that of gasoline."

One-third of gasoline!

This is quite remarkable.

The promotion potential of electric vehicles has surpassed that of traditional fuel vehicles in an instant.

Because compared with the engine of a fuel car, the motor of an electric car has a simpler structure and lighter weight, and many incidental mechanical structures have been cancelled, saving hundreds of kilograms of mass at once.

Complicated transmission structures such as gearboxes are eliminated.

The overall weight loss is at least 200 kg.

Of course, in order to achieve a battery life equivalent to that of a fuel vehicle, the number of battery packs must increase. Based on the mass conversion of a tank of gasoline of 50 kg, it is necessary to carry a 150 kg "High Energy No. 1" battery to achieve the same battery life.

even so!

The electric car equipped with "Gao Neng No. 1" still loses more than 100 kg in weight!

So the endurance performance will only be stronger.

And because of the most advanced fast charging technology, it can fully charge a large-volume battery within half an hour to one hour, and the waiting process will not be particularly long.

And tens of thousands of charging life, extremely high safety...

At least in the automotive field, due to comprehensive considerations of environmental protection, convenience of use, battery life, safety, and cost.

With the advent of "High Energy No. 1", people can hardly find a reason to reject electric vehicles.

And once this battery comes out, it is conceivable that the sensational impact it will cause will be even more unimaginable; the global shocks in many fields will inevitably cause huge pressure on Xinghai Technology.

So the question before Chen Jin is: should we detonate this blockbuster?

In fact, I also want to close my eyes and make it up, but I still checked a lot of information