18400271. ACTIVE MATERIAL simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
ACTIVE MATERIAL
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Hiroyuki Yamaguchi of Toyota-shi (JP)
Hironori Daikoku of Susono-shi (JP)
Jun Yoshida of Mishima-shi (JP)
Kazuhiro Suzuki of Hadano-shi (JP)
Mitsutoshi Otaki of Susono-shi (JP)
ACTIVE MATERIAL - A simplified explanation of the abstract
This abstract first appeared for US patent application 18400271 titled 'ACTIVE MATERIAL
Simplified Explanation
The present disclosure relates to an active material with a silicon clathrate type crystal phase, containing a Na element, a Si element, and a metal element (M) with an ion radius larger than the Si element. The proportion of the M element to the total of the Si element and the M element is between 0.1 atm % and 5 atm %.
- Explanation of the patent/innovation:
- Active material with silicon clathrate type crystal phase - Contains Na, Si, and metal element with larger ion radius than Si - Proportion of metal element to total Si and metal element is between 0.1% and 5%
- Potential applications of this technology:
- High-performance batteries - Energy storage devices - Electric vehicles
- Problems solved by this technology:
- Suppression of expansion upon intercalation of metal ions - Improved stability and performance of batteries
- Benefits of this technology:
- Enhanced battery efficiency - Longer battery lifespan - Increased energy storage capacity
- Potential commercial applications of this technology:
- Battery manufacturing industry - Renewable energy sector - Electric vehicle market
- Possible prior art:
- Previous research on silicon-based active materials for batteries - Studies on metal ion intercalation in battery materials
Questions:
1. How does the presence of the metal element with a larger ion radius than Si help suppress expansion upon intercalation of metal ions in the active material? 2. What specific characteristics of the silicon clathrate type crystal phase make it suitable for use in high-performance batteries?
Original Abstract Submitted
A main object of the present disclosure is to provide an active material wherein an expansion upon intercalation of a metal ion such as a Li ion is suppressed. The present disclosure achieves the object by providing an active material comprising a silicon clathrate type crystal phase, and the active material includes a Na element, a Si element and a M element that is a metal element with an ion radius larger than the Si element, and a proportion of the M element to a total of the Si element and the M element is 0.1 atm % or more and 5 atm % or less.
