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All-Solid-State Lithium-Ion Microbatteries Using Silicon Nanofilm Anodes: High Performance and Memory Effect

hal.structure.identifierCommissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information [CEA-LETI]
dc.contributor.authorCRAS, Frédéric Le
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPECQUENARD, Brigitte
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierSTMicroelectronics [Tours] [ST-TOURS]
dc.contributor.authorDUBOIS, Vincent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierSTMicroelectronics [Tours] [ST-TOURS]
dc.contributor.authorPHAN, Viet-Phong
hal.structure.identifierSTMicroelectronics [Tours] [ST-TOURS]
dc.contributor.authorGUY-BOUYSSOU, Delphine
dc.date.issued2015
dc.identifier.issn1614-6832
dc.description.abstractEnAll-solid-state thin film lithium batteries are promising devices to power the next generations of autonomous microsystems. Nevertheless, some industrial constraints such as the resistance to reflow soldering (260 °C) and to short-circuiting necessitate the replacement of the lithium anode. In this study, a 2 V lithium-ion system based on amorphous silicon nanofilm anodes (50–200 nm thick), a LiPON electrolyte, and a new lithiated titanium oxysulfide cathode Li1.2TiO0.5S2.1 is prepared by sputtering. The determination of the electrochemical behavior of each active material and of whole systems with different configurations allows the highlighting of the particular behavior of the LixSi electrode and the understanding of its consequences on the performance of Li-ion cells. Lithium-ion microbatteries processed with industrial tools and embedded in microelectronic packages exhibit particularly high cycle life (−0.006% cycle−1), ultrafast charge (80% capacity in 1 min), and tolerate both short-circuiting and reflow soldering. Moreover, the perfect stability of the system allows the assignment of some modifications of the voltage curve and a slow and reversible capacity fade occurring in specific conditions, to the formation of Li15Si4 and to the expression of a “memory effect.” These new findings will help to optimize the design of future Li-ion systems using nanosized silicon anodes.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enall-solid-state batteries
dc.subject.enLi15Si4
dc.subject.enLi-ion batteries
dc.subject.ensilicon
dc.subject.enthin film
dc.title.enAll-Solid-State Lithium-Ion Microbatteries Using Silicon Nanofilm Anodes: High Performance and Memory Effect
dc.typeArticle de revue
dc.identifier.doi10.1002/aenm.201501061
dc.subject.halChimie/Matériaux
bordeaux.journalAdvanced Energy Materials
bordeaux.page1501061 (10 p.)
bordeaux.volume5
bordeaux.issue19
bordeaux.peerReviewedoui
hal.identifierhal-01222867
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01222867v1
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