Chapter 112

This energy density is 10 times that of traditional lithium iron phosphate batteries and 5 times that of ordinary ternary lithium batteries on the market.

The most exciting thing is that this super battery uses a cobalt-free positive electrode,

solid-state electrolyte, and carbon-silicon negative electrode, and the entire cell adopts an isomer structure.

This is a cutting-edge technology for lithium batteries.

The advantage of this structure is that its charging and discharging speed is faster,

needing only 30 seconds, under high pressure, to instantly fill a 200KW battery.

Besides this, its volume is extremely small.

Compared to lithium batteries of the same mass, the volume is only one-third of the other party's.

This means that this battery can be used as an electrical energy storage battery for laser weapons.

Or as an energy supply for electromagnetic catapults on aircraft carriers.

The so-called aircraft carrier electromagnetic catapult is a device that precisely controls the catapult acceleration through a control system, allowing aircraft to take off quickly on an aircraft carrier.

The catapult sounds very simple, just a linear motor,

but it can accelerate a 30 to 40-ton heavy fighter jet to the 240 km/h required for takeoff in 2 to 3 seconds.

How much energy is needed during this period? Let's calculate it simply below:

Assume a 35-ton heavy fighter jet accelerates to a takeoff speed of 240 km/h in 3 seconds,

its kinetic energy is approximately: 7.76223e+8J

This kinetic energy is approximately: 215 kWh

The power is approximately: 258,741 KW

And the general catapult interval is about 50 seconds,

so the charging system must fill this lost electricity within 50 seconds,

therefore the power of the charging system is approximately: 15,524.46 KW

Calculated at 50% catapult efficiency and 80% charging efficiency, this charging power will increase to: 38,811 KW;

If calculated based on an aircraft carrier's 3 catapults, then 116,433 KW is needed.

If they are staggered a little, for example, changing the simultaneous catapulting of three catapults to catapulting three times in 100 seconds,

then the power can be reduced to 77,622 KW.

From here, we calculate the 215 kWh required for one catapult, and the other is a charging power of about 16,433 KW.

If calculated according to these two data, this 215 kWh needs to be converted into ampere-hours; at a DC voltage of 3000V, it is about 3000V/72AH, needing to discharge in 3 seconds, the required current is about 86,400A, and the discharge speed is about 1200C.

What is the concept of this C? In fact, it is the battery's discharge speed; for example, a commonly used 18650 lithium battery, assuming its capacity is 6000mAh, discharges at 5C, the maximum current is 30A, and 10C discharge is 60A.

The higher this index, the better the battery's high-speed discharge performance.

Currently on the market, relatively good lithium batteries have a discharge speed of about 75C.

But Fengyi Tech's cobalt-free lithium battery has a maximum discharge speed that can reach about 310C.

This means that only 4 groups of batteries in parallel are needed to reach the 1200C discharge effect required for aircraft carrier catapulting.

It can be said that this new battery, discovered inadvertently, undoubtedly solved the problem of battery packs in aircraft carrier electromagnetic catapulting,

and can also provide energy for the research of domestic laser weapons.

Its significance is naturally extraordinary.

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