Tue, Sep 30, 2014 page13

• ITRI, Mitsui ink STOBA battery pact

  SAFETY: The deal aims to provide lithium-ion batteries that can be terminated safely in the case of overheating and are less likely to explode due to chemical reactions

  • By Camaron Kao / Staff reporter
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  The Industrial Technology Research Institute (ITRI, 工研院) yesterday signed a NT$100 million (US$3.28 million) technology licensing agreement with Taiwan Mitsui Chemicals Inc (亞太三井化學) to produce safer lithium-ion batteries.

  Taiwan Mitsui Chemicals Inc is a fully owned subsidiary of chemicals producer Mitsui Chemicals Inc.

  Japan-based Mitsui Chemicals plans to build a production site in Taiwan by the end of 2016 to manufacture materials for lithium-ion batteries using the institute’s self-terminated oligomers with hyper-branched architecture (STOBA) technology to prevent explosions, Mitsui Chemicals managing executive officer Shigeru Isayama told a news conference.

  

  Left to right, Taiwan Mitsui Chemicals president Takeshi Hiraiwa, managing executive officer Shigeru Isayama and Industrial Technology Research Institute president Shyu Jyuo-min pose with a motorcycle at the signing of a licensing agreement to produce safer lithium-ion batteries in Taipei yesterday.

  Photo: Hung Yu-fang, Taipei Times

  “We will establish close relationships with Taiwanese companies related to lithium-ion batteries,” he said.

  Isayama said the company is further studying the market for lithium-ion batteries worldwide, and may build more production sites in other countries if needed.

  Mitsui Chemicals expects STOBA batteries to account for 10 percent of total shipments of lithium-ion batteries around the world by 2020, said Akio Hirahara, general manager of the company’s new market development division.

  Citing Fuji Keizai, a Japan-based information provider, Mitsui Chemicals said the market for lithium-ion batteries would increase to 80 gigawatt hours in 2020 from an estimated 40 gigawatt hours this year.

  Mitsui Chemicals said it plans to use the new technology to make materials for batteries used in cellphones, personal computers and cars.

  “Compared with local chemical companies, Mitsui Chemicals has stronger ties with car makers, which can help promote STOBA technology in the car industry,” said Pan Jing-pin (潘金平), a division director at the institute.

  Pan said Mitsui Chemicals’ electrolytic solution is used in batteries for Boeing 787 and electric vehicles developed by Nissan Motor Co.

  Mitsui Chemicals is also the largest producer of polypropylene compounds around the world, with Toyota Motor Corp and Honda Motor Co its two major clients, the company said.

  STOBA materials can form films in lithium-ion batteries to stop the chemical reaction and terminate the batteries safely when the batteries’ internal temperature rise to abnormal levels, the institute said, adding that STOBA batteries last twice as long as than other lithium-ion batteries.

  The technology won the R&D 100 Awards in Energy Devices in 2009, the institute said, adding that STOBA batteries manufactured by Amita Technologies Inc (有量科技) are now used in China Motor Corp’s (中華汽車) E-moving 100 electric scooters.

  In addition to Amita Technologies, the institute licensed the technology for manufacturing STOBA batteries to three other Taiwanese lithium battery makers — E-One Moli Energy Corp (能元科技), Lion Tech Co (精極科技) and Synergy ScienTech Corp (興能高科技) — last year, it said.
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