STMicroelectronics had five patents in batteries during Q4 2023. STMicroelectronics NV filed patents for a thin-film lithium ion battery with lithium pillars in the negative electrode layer, and a battery management system with a master BMIC device communicating with slave BMIC devices through Isolated SPI interfaces in a daisy chain configuration. GlobalData’s report on STMicroelectronics gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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STMicroelectronics grant share with batteries as a theme is 20% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Putting into service of a lithium ion battery (Patent ID: US20230402644A1)
The patent filed by STMicroelectronics NV describes a thin-film lithium-ion battery with a unique structure that includes lithium pillars formed in the negative electrode layer. The method outlined in the claims involves manufacturing the battery with specific steps such as charging with different currents to form and preserve the lithium pillars, as well as forming a homogenous lithium layer in the negative electrode.
The method includes steps like detecting the voltage reaching a nominal value, terminating charging accordingly, discharging with specific currents to avoid eliminating the lithium pillars, and forming a homogenous lithium layer. The process ensures the preservation of both the lithium pillars and the homogenous lithium layer in the negative electrode, enhancing the performance and longevity of the thin-film lithium-ion battery.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
