Submarine Matters provides an expanding database on submarines worldwide. Australia should contract in 2016 to only buy a batch of 6 Shortfins - then, in the 2030s, decide whether to buy: 6 more Shortfins or 6 Barracuda SSNs or 4 Virginia SSNs. With increasing numbers of Chinese, Russian and Indian SSNs in Australia's region Australia's Shortfins cannot attain any 2016 Defence White Paper goal of being "regionally superior". Australia would need to buy SSNs to be "superior".
February 17, 2017
Two types of Japanese Lithium-ion Batteries Being Considered
The video "Why Japan’s
Soryu Class Submarines Are So Good "Black Dragon" was published on Oct 3, 2016. See it being launched in video, numbered SS-506. Good on Soryu specifications, modifications for Australia, and strategic value for Japan generally.
Submarine Matters is not the only website writing about Lithium-ion
Batties (LIBs) for submarine. Gordon Arthur, Asia-Pacific Editor for Shephard Media, wrote an excellent article in Shephard Media “Japan leads way with Li-ion submarines”.
That article features LIB performance and comparative
information provided by Vice Admiral (Retired) Masao Kobayashi (see photo
and career biodata). He is the former commander Japanese Navy’s Fleet Submarine Force. He spoke at UDT Asia (Singapore, 18 January 2017). Kobayashi’s
information confirms the superiority of LIBs information provided by Anonymous
sources to Submarine Matters over the
last two years. New information in Gordon
Arthur’s article includes:
27SS TO BE COMMISSIONED MARCH 2020
Japan's first LIB submarine, [that would be the first
Soryu Mark 2, 27SS, under construction at MHI see SORYU
TABLE] will be commissioned in March
2020 (no lead-acid batteries (LABs) or AIP.
THERE ARE TWO LIB
TYPES FOR JAPANESE SUBMARINES
Kobayashi believes that there is no clear single lithium-ion solution as a submarine main battery with future submarines being optimised with different power source. Two LIB types for Japanese submarine use are available:
Lithium nickel cobalt aluminium oxide ( LiNiCoAlO2 ) known as “NCA”manufactured
by GS Yuasa. For main traits scroll quarter way down at.
The JMSDF will use NCA-type batteries. es. Kobayashi advised for
mobile operations, for example, NCA batteries and diesel may be ideal.
Lithium-titanate ( Li4Ti5O12 ) known as “LTO”,from Toshiba. For main traits scroll a third way down at,.
Kobayashi believes LTO types were offered to Australia for its SEA 1000, Future
Submarine proposal. an ambush submarine
would operate better on fuel cells, LTO
Kobayashi advised the lowest-cost option may be LTO and
RESEARCH/TESTING OF SUBMARINE LIBS and AIP
Japan's LIBs research began in 1962. The first LIB for
submarine was ready in 1974 but did not meet requirements (including cost). Fuel
cell AIP technology was not yet mature so Japan turned to Stirling AIP. From
1991-97 (Stirling?) AIP was (land tested?) before being installed into aHarushio-class(probably JDS Asashio TSS-3601)
submarine in 2000-01 for trials.
“Meanwhile, tests on Li-ion batteries continued to the point
that the JMSDF asked for a Li-ion-poweredSoryu-class boat [27SS] in its FY2015 budget request.”