Location History:
- Ibaraki, JP (2009 - 2015)
- Osaka, JP (2015)
- Kyoto, JP (2017)
Company Filing History:
Years Active: 2009-2017
Title: Eri Kojima: Innovator in Lithium-ion Battery Technology
Introduction
Eri Kojima, an accomplished inventor based in Ibaraki, Japan, has made significant contributions to the field of lithium-ion battery technology. With an impressive portfolio of six patents, Kojima's innovations focus on improving the efficiency and safety of battery materials and designs.
Latest Patents
Kojima's latest patents demonstrate her expertise and commitment to advancing battery technology. One notable patent is for a lithium-ion secondary battery that features a negative electrode material layer containing silicon (Si) and oxygen (O). This innovative design exhibits excellent charge-discharge cycle characteristics, enhancing the overall performance of the battery. The battery includes a positive electrode with a material mixture layer, a specially designed separator, and a nonaqueous electrolyte. The negative electrode's composition allows for an atomic ratio of oxygen to silicon ranging from 0.5 to 1.5, while the nonaqueous electrolyte's conductivity at 25°C ranges from 6.5 to 16 mS/cm.
Another recent patent by Kojima addresses the development of a separator for batteries that includes a heat-resistant insulator layer. This separator is engineered for reliability and safety, showing excellent storage characteristics. The ability to maintain water content per unit volume at levels lower than 1 mg/cm when held in humid conditions is a significant advancement in battery performance.
Career Highlights
Throughout her career, Eri Kojima has worked with prominent companies, including Hitachi Maxell, Limited and Hitachi, Ltd. Her tenure at these organizations has solidified her expertise in battery technology and material science. Kojima's dedication to research and innovation has established her as a noteworthy figure in her field.
Collaborations
Kojima has collaborated with esteemed professionals in her industry, including Shigeo Aoyama and Jinbao Zhao. These partnerships have likely fostered creativity and shared knowledge, further enhancing the advancements in lithium-ion battery technology.
Conclusion
Eri Kojima continues to be an influential inventor in the realm of lithium-ion batteries, with her patents reflecting a strong commitment to innovation and improvement in this critical technology. Her work not only showcases her technical skills but also contributes significantly to the future of energy storage solutions.