tag:blogger.com,1999:blog-19245896.post887270244927484968..comments2024-03-28T21:57:32.099+11:00Comments on Submarine Matters & Australian Nuclear Weapons: South Korea to be 2nd Country To Install LIBs for SubmarinesPete2http://www.blogger.com/profile/06134037393078707072noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-19245896.post-28898312893665091672017-07-01T00:35:28.179+10:002017-07-01T00:35:28.179+10:00Hi Pete
According to Korea JoongAng Daily (JPN ve...Hi Pete<br /><br />According to Korea JoongAng Daily (JPN version), SK laid down third submarine of Jang Bogo-III on Jun 30 [1]. Jang Bogo-III equips with 6 Vertical Launching Systems (VLSs) for Hyunmoo-2B Missiles [2] with range of 500km and payload of 500kg.<br />[1] http://japanese.joins.com/article/738/230738.html?servcode=200&sectcode=200&cloc=jp|main|top_news<br />[2] https://en.wikipedia.org/wiki/Hyunmoo<br /><br /><br />Although both LIBs and VLSs are new submarine technologies for SK and the first submarine of Jang Bogo-III is under building, SK laid down the third submarine. SK seems to rush development.<br /><br />Regards<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-30520379646307547872017-04-12T12:26:36.241+10:002017-04-12T12:26:36.241+10:00Hi Pete
One of the things I really like on your ...Hi Pete<br /> <br />One of the things I really like on your blog is the level of analysis/clever speculations. <br /><br />I’m particularly fond of this table published above.<br /><br />I’ve read, like many, that the Japanese developed their LIB technology on the basis of the NCA chemistry, itself a kind derivative of the older LCO chemistry (used onboard 787s). I understand the JMSDF, ATLA, GS Yuasa did not retain the LCO chemistry because of its level of performance and also (moreover) because of its unstable nature.<br /><br />However, I did not know the JMSDF had prototyped a LMO battery. <br />QUESTION - Is it the next-gen chemistry potentially to be used on the Soryu successor ? Or something else ?<br /> <br />All the bestAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-88978913432902942742017-03-31T13:45:25.267+11:002017-03-31T13:45:25.267+11:00Hi Wispywood2344 and Anonymous [at 31/3/17 7:21 AM...Hi Wispywood2344 and Anonymous [at 31/3/17 7:21 AM]<br /><br />I don't know enough about the merits of different LIB chemistries to be able to usefully contribute to the debate on what might be the best LIB type for the Japanese Navy.<br /><br />The Australian Navy (RAN) would probably have been a little too risk averse to see merit in using unique LTO LIBs when not even the Japanese Navy was using LTO.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-46478513020378437692017-03-31T07:21:13.529+11:002017-03-31T07:21:13.529+11:00Hi Pete
Ex-commander of JMSDF submarine fleet and...Hi Pete<br /><br />Ex-commander of JMSDF submarine fleet and renowned submarine expert, Masao Kobayashi clearly suggested adoption of NCA to Soryu MK2 [1]. I do not think the ex-commander told a lie. <br /> <br />[1]https://www.shephardmedia.com/news/defence-notes/japan-leads-way-li-ion-submarines/<br /><br />Two Li-ion types are available: lithium nickel cobalt aluminium oxide (NCA) manufactured by GS Yuasa; and lithium-titanate (LTO) from Toshiba. The JMSDF will use NCA-type batteries whereas Kobayashi believes LTO types were offered to Australia for its Future Submarine proposal.<br /><br />Regards<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-22790554736899726642017-03-31T00:26:31.152+11:002017-03-31T00:26:31.152+11:00Hi Pete.
I have read the technical reports and pr...Hi Pete.<br /><br />I have read the technical reports and press releases of GS Yuasa to investigate the positive electrode material of its products in order to get clues about the positive electrode material of LIB of Soryu Mk2.<br />The results are below;<br /><br />LCO (lithium cobalt oxide) is used in products for aerospace use (LVP series[1], JMG series[2]), and deep submergible vehicle (LFL400[3]).<br />LMO (lithium manganese oxide) is used in products for EV (LEV50[4][5], LEV50N[4]), industrial use (LIM series[5]), and special use (YML series[6]).<br />LNMCO (lithium nickel manganese cobalt oxide) is used in products for HV (EH5[7], EH6[8]), and industrial use (EX25A[9]).<br /><br />As far as I looked over, LNCAO (lithium nickel cobalt aluminum oxide) is not used in products of GS Yuasa.<br />So, I think that the discourse that LNCAO is used for Soryu Mk2 is highly doubtful.<br /><br />Reference<br />[1]https://www.gs-yuasa.com/en/technic/vol7/pdf/007_01_014.pdf<br />[2]http://www.kenkai.jaxa.jp/database/db-gja007.html<br />[3]https://www.gs-yuasa.com/jp/technic/vol10_2/pdf/010_02_024.pdf<br />[4]https://www.gs-yuasa.com/en/technic/vol9/pdf/009_01_026.pdf<br />[5]https://www.gs-yuasa.com/en/technic/vol6_2/pdf/006_02_020.pdf<br />[6]https://www.gs-yuasa.com/jp/newsrelease/archives/ycj/topick/top20000420.html<br />[7]https://www.gs-yuasa.com/en/technic/vol11_2/pdf/011_02_024.pdf<br />[8]http://techon.nikkeibp.co.jp/article/NEWS/20081217/162989<br />[9]https://www.gs-yuasa.com/jp/technic/no1/pdf/001_1_025.pdf<br /><br />Regards<br />Wispywood2344Wispywood2344http://blog.livedoor.jp/wispywood2344/noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-9751385180081138822017-03-29T11:55:32.247+11:002017-03-29T11:55:32.247+11:00Hi KQN
I've located in Wikipedia battery prob...Hi KQN<br /><br />I've located in Wikipedia battery problems with the Samsung Galaxy S4 events - https://en.wikipedia.org/wiki/Samsung_Galaxy_S4#Battery_problems_and_safety_issues<br /><br />"A house in Hong Kong is alleged to have been set on fire by an S4 in July 2013,[103] followed by a minor burnt S4 in Pakistan.[104] A minor fire was also reported in Newbury, United Kingdom in October 2013.[105][106] Some users of the phone have also reported swelling batteries and overheating;[107] Samsung has offered affected customers new batteries free of charge.[108]".<br /><br />Yes millions of Samsung batteries working in other applications - apparently without problems.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-6020482295691425212017-03-29T03:32:45.472+11:002017-03-29T03:32:45.472+11:00Minus the fiasco with Note 4, Samsung LIBs are fou...Minus the fiasco with Note 4, Samsung LIBs are found in many other applications. Given LIB Soryu, SK will be pressed to do same, if not earlier.<br />KQNAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-59115904065821066412017-03-28T20:28:01.469+11:002017-03-28T20:28:01.469+11:00Hi again Sanchun Yaton
Where you refer to:
"...Hi again Sanchun Yaton<br /><br />Where you refer to:<br /><br />"Recently the Chinese managed to run a powerful diesel engine on the surface with a full submarine crew and shipyard observers onboard with the hull system and hatches shut until they pulled a vacuum in the hull and killed everyone on board. They found the submarine drifting. I can't remember ANY case of that happening with a WWII Western diesel submarine, ever."<br /><br />Although the Chinese "bravely" maintain Ming class submarine No. 361 was submerged, not surfaced, I assume 361 is the sub in question: https://en.wikipedia.org/wiki/Chinese_submarine_361#Fatal_incident<br /><br />"According to the official Chinese news agency, Xinhua, all 70 crew members died when the submarine's diesel engine used up all the oxygen (because it failed to shut down properly) while the boat was submerged on April 16, 2003. The submarine, which was commanded by was Commodore Cheng Fuming (程福明) [why an exalted Commodore?], had been taking part in naval exercises east of Inner Changshan Islands in the Bohai Sea of Northeastern China. Along with its normal compliment, the crew also included 13 trainee cadets from the Chinese naval academy. [3]<br /><br />After the disaster, the crippled submarine drifted for ten days because it was on a silent, no-contact exercises [or no-one wanted to get near a fatal mistake under orders from higher ups...] . The boat was discovered by Chinese fishermen who noticed its periscope sticking above the surface on April 25, 2003. The submarine was initially towed to Yulin Harbor near Sanya on Hainan Island before being taken back to the northeast seaport of Dalian in Liaoning province in Northeast China.<br /><br />Impact<br /><br />CMC Vice-chairman Guo Boxiong led an enquiry into the incident, which resulted in the dismissal of four senior PLAN officers on June 13, 2003. Four other senior officers were also demoted. The official verdict was improper "command and control"." [or a test that went wrong]Petehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-78992199423668970782017-03-28T20:08:37.067+11:002017-03-28T20:08:37.067+11:00Hi Sanchun Yaton
As I advised on March 27 http://...Hi Sanchun Yaton<br /><br />As I advised on March 27 http://gentleseas.blogspot.com.au/2016/03/japanese-submarine-evolution-stronger.html?showComment=1490600193291#c954259379002664783<br /><br />Thanks for your comments. I think, since 1945, Japan's low spending (about 1% GDP/per capita) on defense and Japan's pacifist outlook means Japan is not a threat to anyone. China, Russia and, of course, nuclear missile rattling hermit kingdom North Korea, are threatening players.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-65439688898862964682017-03-28T20:00:11.204+11:002017-03-28T20:00:11.204+11:00Carried over from March 27, 2017 at http://gentles...Carried over from March 27, 2017 at http://gentleseas.blogspot.com.au/2016/03/japanese-submarine-evolution-stronger.html?showComment=1490569905102#c657192681436726199<br /><br />Sanchun Yaton commented: <br /><br />"I served in the US Navy 1965 - 1968 1/2 on US naval destroyers in anti submarine warfare in the Mediterranean and in the Pacific supporting the war in Viet-Nam. Your answer is yes and NO. In terms of technology, for the Japs and Yanks, problems are to be solved. The US has lost two nuclear submarines due to bad "builds" and bad quality control. We learn from our mistakes. Possibly, that is why we can argue we are the best in the world. You don't think airlines still don't want high performing, light weight batteries for modern jets ? Have the "brilliant" French given up so soon on Lithium Ion technology ? Car manufacturers have not.<br /><br />The Japanese are re engineering Li-Ion batteries for submarine use, starting from zero. Have you never used a Yuasa motorcycle battery in a motorcycle ? They are not about to knowing, cause the loss any of their expensive submarines. Now, the Chinese will try the same thing, SEPARATELY. How will they do ? Who knows ? Recently the Chinese managed to run a powerful diesel engine on the surface with a full submarine crew and shipyard observers onboard with the hull system and hatches shut until they pulled a vacuum in the hull and killed everyone on board. They found the submarine drifting. I can't remember ANY case of that happening with a WWII Western diesel submarine, ever.<br /><br />From my perspective, the US has never fought against such a smart and capable enemy in the Pacific. We had to go after the Japanese island after island until we reached the edges of Japan. I would fear them more than the Chinese. The Japanese know what they are doing."Anonymousnoreply@blogger.com