Underwater operating time doubles: new submarine battery unveiled in South Korea

The South Korean company Hanwha Defense presented a new lithium-ion battery at the MADEX 2021 exhibition, which is supposed to be used on a new attack submarine of the KSS-III Batch-II project (Jangbogo-III series 2): it is expected at navy by 2026 already.

The KSS-III power unit is said to be an air-independent propulsion system. It will make it possible to reach a speed of 12 knots (22 km / h) on the surface and 20 knots (37 km / h) underwater and cover 10 thousand nautical miles (19 thousand km).

Compared to previously used lead-acid batteries, the new lithium batteries allow the KSS-III Series 2 to move at high speed, increase its performance by 300% and save 160%. And durability and lifespan are doubled

- reported in the official press release.

Hanwha Defense is responsible for the integration of battery modules and other parts on the KSS-III submarine, which has a displacement of 3000 tons. The submarine's operating time under water is expected to double thanks to the new batteries. At the same time, the safety and reliability of the use of lithium-ion batteries is asserted.

Battery module for KSS-III Series 2 from Hanwha Defense:

Comments

[knn54]

Have you messed up with "%"? And so clearly the favorite in the Indian tender.

[dimy44]

I think they didn't mess with the percentages, just look at how modern scooters run on a small light battery, before it would have been fantastic.

[NF68]

Quote: dimy44

I think they didn't mess with the percentages, just look at how modern scooters run on a small light battery, before it would have been fantastic.

And the warriors' equipment is even more perfect than civilians will have.

[Hammer]

Most likely, the numbers are close to real ones. But it's not the Koreans who set the fashion here. The Japanese were the first to build and are already operating two boats of the "Suryu" type (the last two hulls of this type) with injection batteries. And judging by the reviews, they are delighted with the result. And it seems like they do not plan to return to VNEU.

[Victor_B]

Losharik's experience seems to hint ...

[Hammer]

Lpyt Losharik kind of hints that we need to invest and develop in our own development and production of new generations of storage batteries. And not to slow down and be content with the purchased technologies of yesterday over the hill .... And no longer in lithium, but already based on graphene technologies.

[Ruslan Sledkov]

So you can almost go around the globe on it? Without recharging? Something is skepticism.

[dimy44]

Xs, how safe they are in reality, everyone has heard about fires. And of course, acidic ones are much inferior.

[rocket757]

While new, improved batteries are being created ... What will be the next stage?

[DED_peer_DED]

All this lithium-ion with the slightest hostilities, bombing, minimal fire impact on the surface, with emergency calls and damage in battle is the first candidate for the cause of a fire on board. Considering the small size of non-nuclear submarines, their low combat and structural stability, this is a time bomb on board a vehicle operating at depth and in combat conditions.

[dimy44]

I also wanted to convey this above. Yes, the efficiency and all the benefits are huge, but there is a risk. But ... Right now, it's business. Come on. And God forbid it should happen, then we'll figure it out.

[DED_peer_DED]

Quote: dimy44

But ... now it's business

Unfortunately, nothing else.
"There is no truth. Russia was sold. There is only Labor for 2 kopecks ..." (C)

[agond]

Quote: DED_peer_DED

Given the small size of non-nuclear submarines, their low combat and structural stability

Rather, on the contrary, the smaller the boat, the easier it is to survive an explosion near the hull, for example, the German midget submarines of 1944 "Seehund" with a crew of 2 people.

[Kostadinov]

As stated, the power unit KSS-III will be represented by an air-independent propulsion system. It will make it possible to reach a speed of 12 knots (22 km / h) on the surface and 20 knots (37 km / h) underwater and cover 10 thousand nautical miles (19 thousand km).

1.Why does air-independent allow something on the surface? There is air in abundance above the water.
2. 19 thousand kilometers at 20 knots submerged? This should hit the atomic reactor.
You have to think and read what you wrote.

[Sailor]

Lithium-ion, like VNEU, we do not have enough intelligence to make or money, let's hope for an atomic "battery".

[Zaurbek]

These are parallel approaches: Stirling engine, VNEU (different types) and Li-ion batteries ... ... none of them is an indicator of an easy way ... only technically developed countries can produce. Those who have competencies in what develops them.