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MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 06/24/19 07:23pm Link  |  Quote  |  Print  |  Notify Moderator

SEOUL — South Korea says it has developed lithium-ion batteries that can double the operational hours of submarines compared to those with lead-acid batteries.

The lithium-ion batteries were created for the country’s next-generation attack submarines, expected to launch in the mid-2020s, according to the Defense Acquisition Program Administration, or DAPA.

Following 30 months of development, the batteries passed a technology readiness assessment, a step toward integration on a weapons platform, the agency said in a news release.

“Development of lithium-ion batteries for submarines is a great achievement in the global submarine market,” said Rear Adm. Jung Il-shik of the DAPA’s next-generation submarine project group. “We expect this successful development of lithium-ion batteries to raise South Korea’s reputation as a submarine maker, as well as to have a great ripple effect through the commercial sectors.”

Samsung SDI, the world’s largest supplier of lithium-ion batteries, including ones for cellphones, manufactured the battery module to be mounted on the second batch of three KSS-III submarines. Hanwha Land Systems is responsible for integrating the modules and other parts on the submarine, which is built by Daewoo Shipbuilding & Marine Engineering.

The first of the three locally designed KSS-III Batch I diesel-electric submarines was launched in September, and two more hulls are expected to be under construction until 2024. According to the DAPA, the KSS-III class is 83.5 meters long and has a beam of 9.6 meters. It has a displacement of 3,358 tons when surfaced, and 3,705 tons when submerged.

The boat is known to be equipped with six vertical launch system tubes and able to accommodate a locally developed cruise missile. It can sail at a maximum speed of 20 knots with a cruising range of 10,000 nautical meters, DAPA officials said.

With a slight redesign and some system upgrades, the Batch II subs are expected to have improved capabilities in attacking strategic land-based targets and performing anti-submarine warfare, the officials said.

South Korea could soon take control of its own wartime operations from the US
South Korea could soon take control of its own wartime operations from the US

An agreement between the U.S. and South Korea is meant to bring about a combined defense structure in which Seoul takes on more responsibility for national defense.


The Korean developers prioritized the safety and reliability of the lithium-ion batteries, which were once considered expensive and too unstable for submarines, another DAPA source with the submarine project group told Defense News.

“It’s no doubt that South Korean companies have the world’s best technology of lithium-ion batteries, but if an accident happened like an explosion, such technology is to be meaningless,” the source said, speaking on condition of anonymity due to the secrecy of the development project. “So we’re really focused on safety and reliability rather than performances. We even lowered the level of performances to an extent on purpose to ensure higher and better safety standards.”

To that end, the new batteries have undergone tests simulating harsh conditions, such as an explosion, seawater, fire, and extreme temperatures, he noted.

“The Korean lithium-ion batteries still would be better than those of competitors,” he asserted, referring to Japan’s recent integration of lithium-ion batteries into its Soryu-class diesel-electric attack submarine.

The 84-meter-long boat for the Japan Maritime Self-Defense Force was launched Oct. 4, with an operational data set for 2020. GS Yuasa, a Kyoto-based battery manufacturer, developed the lithium-ion batteries for the Soryu-class sub.
__________________________________________________________________________________________________________________________________-


This is pretty much who and what to watch in the coming months and years. For instance according to this article, YUASA is the brand watch for much smaller lithium packages. Samsung is also a major player and just as the Chinese steal the top tier technology RV'ers should enjoy lower prices and higher reliability because of borrowed battery management circuitry.

Lwiddis

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Posted: 06/24/19 07:56pm Link  |  Quote  |  Print  |  Notify Moderator

Progress on the battery front! TY for posting.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watts solar-parallel & MPPT, Trojan T-125s. TALL pole for flags. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - (MOS 1542 & 1560)


KD4UPL

Swoope, VA

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Posted: 06/24/19 07:56pm Link  |  Quote  |  Print  |  Notify Moderator

Interesting. I had no idea anybody was still using diesel-electric subs. I thought they were all nuclear by now.

pnichols

The Other California

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Posted: 06/24/19 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

MEXICOWANDERER wrote:

SEOUL — South Korea says it has developed lithium-ion batteries that can double the operational hours of submarines compared to those with lead-acid batteries.

The lithium-ion batteries were created for the country’s next-generation attack submarines, expected to launch in the mid-2020s, according to the Defense Acquisition Program Administration, or DAPA.

Following 30 months of development, the batteries passed a technology readiness assessment, a step toward integration on a weapons platform, the agency said in a news release.

“Development of lithium-ion batteries for submarines is a great achievement in the global submarine market,” said Rear Adm. Jung Il-shik of the DAPA’s next-generation submarine project group. “We expect this successful development of lithium-ion batteries to raise South Korea’s reputation as a submarine maker, as well as to have a great ripple effect through the commercial sectors.”

Samsung SDI, the world’s largest supplier of lithium-ion batteries, including ones for cellphones, manufactured the battery module to be mounted on the second batch of three KSS-III submarines. Hanwha Land Systems is responsible for integrating the modules and other parts on the submarine, which is built by Daewoo Shipbuilding & Marine Engineering.

The first of the three locally designed KSS-III Batch I diesel-electric submarines was launched in September, and two more hulls are expected to be under construction until 2024. According to the DAPA, the KSS-III class is 83.5 meters long and has a beam of 9.6 meters. It has a displacement of 3,358 tons when surfaced, and 3,705 tons when submerged.

The boat is known to be equipped with six vertical launch system tubes and able to accommodate a locally developed cruise missile. It can sail at a maximum speed of 20 knots with a cruising range of 10,000 nautical meters, DAPA officials said.

With a slight redesign and some system upgrades, the Batch II subs are expected to have improved capabilities in attacking strategic land-based targets and performing anti-submarine warfare, the officials said.

South Korea could soon take control of its own wartime operations from the US
South Korea could soon take control of its own wartime operations from the US

An agreement between the U.S. and South Korea is meant to bring about a combined defense structure in which Seoul takes on more responsibility for national defense.


The Korean developers prioritized the safety and reliability of the lithium-ion batteries, which were once considered expensive and too unstable for submarines, another DAPA source with the submarine project group told Defense News.

“It’s no doubt that South Korean companies have the world’s best technology of lithium-ion batteries, but if an accident happened like an explosion, such technology is to be meaningless,” the source said, speaking on condition of anonymity due to the secrecy of the development project. “So we’re really focused on safety and reliability rather than performances. We even lowered the level of performances to an extent on purpose to ensure higher and better safety standards.”

To that end, the new batteries have undergone tests simulating harsh conditions, such as an explosion, seawater, fire, and extreme temperatures, he noted.

“The Korean lithium-ion batteries still would be better than those of competitors,” he asserted, referring to Japan’s recent integration of lithium-ion batteries into its Soryu-class diesel-electric attack submarine.

The 84-meter-long boat for the Japan Maritime Self-Defense Force was launched Oct. 4, with an operational data set for 2020. GS Yuasa, a Kyoto-based battery manufacturer, developed the lithium-ion batteries for the Soryu-class sub.
__________________________________________________________________________________________________________________________________-


This is pretty much who and what to watch in the coming months and years. For instance according to this article, YUASA is the brand watch for much smaller lithium packages. Samsung is also a major player and just as the Chinese steal the top tier technology RV'ers should enjoy lower prices and higher reliability because of borrowed battery management circuitry.


Hmmm ... whatever happened to nuclear powered submarines? I think I like them way better. [emoticon]


Phil, 2005 E450 Itasca Spirit 24V

ktmrfs

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Posted: 06/24/19 08:01pm Link  |  Quote  |  Print  |  Notify Moderator

KD4UPL wrote:

Interesting. I had no idea anybody was still using diesel-electric subs. I thought they were all nuclear by now.


we toured some subs in the San Diego waterfront. Interestingly they made the comment that the diesel electric subs running on batteries are quiter for detection than the nuclear subs. And suprisingly there are still quite a few diesel electric subs in operation that are quite new.

I am suprised that the lithium ion batteries are only double the capacity of the lead acids they replace. I wonder how much extra ballast is needed to account for the lighter weight of the lithium batteries.


2011 Keystone Outback 295RE
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3 tons

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Posted: 06/24/19 08:04pm Link  |  Quote  |  Print  |  Notify Moderator

KD4UPL wrote:

Interesting. I had no idea anybody was still using diesel-electric subs. I thought they were all nuclear by now.


Though having various operating constraints, the diesel sub is cheaper to field, much stealthier (silent...), and can be asymmetrical deadlier particularly in coastal waters...Much of this depends on how far a Navy must go to project it’s power...

time2roll

Southern California

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Posted: 06/24/19 08:44pm Link  |  Quote  |  Print  |  Notify Moderator

Yes it would seem like local defense could be easier with a multitude of these vs possibly no nuke powered due to cost. I wonder if they will plug in at the dock vs burn diesel to charge. Can only be better than flooded lead acid.


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pianotuna

Regina, SK, Canada

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Posted: 06/24/19 10:26pm Link  |  Quote  |  Print  |  Notify Moderator

It certainly avoids one aspect of Lead Acid power. If battery acid and sea water mix, chlorine gas is created.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Retired JSO

Northeast Florida

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Posted: 06/25/19 08:33am Link  |  Quote  |  Print  |  Notify Moderator

Even in my day, the U S Navy had only a hand full of non nuclear subs and today no non nuclear boats in the service fleet. Several third world countries operate diesel/electric boats to this day. I Would bet Russia and China are front runners in the success of this project. I believe this type of battery will be a good fit for scientific/disaster and rescue boats owned by private consortiums throughout the world.





Horsedoc

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Posted: 06/25/19 10:54am Link  |  Quote  |  Print  |  Notify Moderator

The also have developed a ship that has no engine and moves along the surface with wind power [emoticon] [emoticon]

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