ITRI’s High Safety STOBA Material Technology Wins 2009 R&D 100 Awards[2009/10/05]

Small lithium battery
Large lithium battery
Lithium batteries of different capacity.
General Director Jonq-Min Liu of ITRI’s Material and Chemical Research Laboratories (MCL) says the currently developed STOBA material can greatly enhance the safety of lithium battery.
General Director Jonq-Min Liu of ITRI’s Material and Chemical Research Laboratories (MCL) says the lithium battery is the important power source of current electronic products.

The newly released US R&D magazine has announced ITRI (Industrial Technology Research Institute) won the 2009 R&D 100 Awards for its high safety STOBA lithium battery material. ITRI won this honor successively two years in a row after winning the AC-LED technology in 2008, putting it on a par with Intel, NASA and the US Argonne National Laboratory. The R&D magazine holds that the new generation battery technology should have multiple advantages “to gain stable business opportunities in the future market and must conform to the green environmental protection material, aside from high performance.” Hence, the STOBA technology was elected to be one of the 2009 R&D 100 Award winners.

General Director Jonq-Min Liu of ITRI’s Material and Chemical Research Laboratories (MCL) says the lithium battery is the important power source of current electronic products, yet it is the most unstable electronics component. In the past, the safer lithium battery could not be requires because throughout the world there was no solution. The currently developed STOBA material can greatly enhance the safety of lithium battery. The technology has currently applied for 9 patents in 29 projects. This will make Taiwan’s lithium battery industry stand out on the international arena.

Deputy General Director Alex Peng points out that STOBA is a nano-grade high molecular material added to the lithium battery to form a protective film. When the lithium battery encounters excessive heat, external impact or piercing, STOBA would immediately generate the locking effect to avoid shorting of the battery and interrupts electrical and chemical action to prevent excessive heat and ensure safety and practicality of the 3C product batteries and the electrical vehicle battery. STOBA technology has already passed the mandatory shorting and piercing experiments which is more stringent than the international safety standard. Presently, it is the only technology in the globe using innovative material that has fundamentally resolved the lithium battery safety issue.
As a result of repeated trials and efforts, the R&D team of STOBA led by Division Director of MCL Jing-Pin Pan, eventually found similar structure with features of heat-resistant, fair bonding and flexibility in the high molecular substance. After years of material improvement and testing, the predicament was overcome and all-new material was finally found. Except for effectively resolving the safety problem, the high temperature recycle life has been extended by more than 20%. Like the Buddhist practitioners, the material researchers need perseverance and anti-stress personality, making 99% efforts to win the last 1% inspiration.
Over the last couple of years, ITRI has frequently won international awards with its R&D accomplishments. Aside from elected by the R&D magazine for the R&D 100 global technology awards, recently ITRI’s paper-thin flexible loudspeaker also won the Technology Innovation Awards of the Wall Street Journal in its Consumer Electronics Category. In face of critical economic recession, ITRI will continue to lead technology R&D and search new opportunities for the industry.

 

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(1)R&D100 Awards
The R&D 100 Awards were founded by the renowned American R&D magazine in 1963. Every year, a hundred most innovative and commercialized technologies will be selected by eminent experts and scholars in different background from over a thousand innovative technologies across the world in terms of technology breakthrough, unique innovation and practical applications. The units which won the awards in 2009 include Intel, the US Argonne National Laboratory, Oak Ridge National Laboratory, the Los Alamos National Laboratory, and US NASA, etc.

For 47 years, the R&D magazine each year identified 100 revolutionary technologies newly introduced to the market. The Awards are the reputed the Oscars of Invention according to The Chicago Tribune. This year, 20 elites from the academic and technology circles from across the United States have acted as judges to elect the top 100 new influential technologies. In the past, awards have been presented to the automated teller machine (1973), facsimile (1975), LCD display (1980), printer (1986), Kodak Photo CD (1991) and the currently hottest high resolution TV (1998). The awarded technologies have become the essential influences of future lifestyles.

(2)Introduction to award-winning technology--high safety STOBA material
A total of 3.1 billion lithium batteries were produced globally in 2008. Six Sigma no longer meets the safety requirement of lithium battery. The ITRI STOBA material allows the lithium batteries have important redundancy time and reached twelve sigma so that when the lithium battery shorts and generates high temperature, it also generates the locking response mechanism and avoids subsequent heat explosion problem to ensure consumer safety.

The main problem of safety for lithium battery comes from rising internal temperature of the battery including improper heating of the battery, excessive charging, and shorting caused by contact of positive and negative materials. When internal temperature continues to rise and cannot be restrained, the separation membrane of positive and negative materials would start to melt, pierce through and resulted in massive current shorting, then the battery would accelerate heating up and temperature rises to 180℃ and triggers decomposition of the positive materials and generates huge heat. When the battery temperature soars instantly, like continuous heating of a pressure cooker with crevice and eventually generating heat explosion, the battery will erupt massive gases and ignite fire or cause explosion.

 

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