Li-ion transport in all-solid-state lithium batteries with LiCoO2 using NASICON-type glass ceramic electrolytes

Xie, Jian; Imanishi, Nobuyuki; Zhang, T.; Hirano, Atsushi; Takeda, Yasuo

doi:10.1016/j.jpowsour.2008.08.015

Cited by 70 publications

(62 citation statements)

References 21 publications

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“…The former are still under development after many years of research and the latter currently fall short in terms of high impedance issues associated with poorly defi ned interfaces. [ 2,3 ] Here, we report the use of spark plasma sintering (SPS) as a novel assembly technique for preparing all-inorganic, monolithic Li-ion batteries; these batteries have cycling characteristics approaching their liquid Li-ion counterparts, while being safer and faster to make. This achievement is grounded in the structural quality of the electrode-electrolyte interfaces, as probed by impedance spectroscopy and electron microscopy, which enables both good charge transfer and mechanical integrity upon cycling.…”

mentioning

confidence: 99%

A New Approach to Develop Safe All‐Inorganic Monolithic Li‐Ion Batteries

Aboulaich

Bouchet

Delaizir

et al. 2011

Advanced Energy Materials

147

113

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Li-ion batteries based on liquid electrolytes have conquered the electronics marketplace, however, cost and safety are the overriding parameters limiting their widespread use in electric vehicles (EVs) or hybrid EVs (HEVs). [ 1 ] Ideally, Li-ion batteries should rely on the use of dry polymer or inorganic electrolytes, as they would then be free of solvent leakages. The former are still under development after many years of research and the latter currently fall short in terms of high impedance issues associated with poorly defi ned interfaces. [ 2,3 ] Here, we report the use of spark plasma sintering (SPS) as a novel assembly technique for preparing all-inorganic, monolithic Li-ion batteries; these batteries have cycling characteristics approaching their liquid Li-ion counterparts, while being safer and faster to make. This achievement is grounded in the structural quality of the electrode-electrolyte interfaces, as probed by impedance spectroscopy and electron microscopy, which enables both good charge transfer and mechanical integrity upon cycling. This work provides a new path worth pursuing for designing Li-ion batteries capable of operating safely over a wide temperature range.The all-solid-state battery consists of a stack of 3 components (composite positive electrode/electrolyte/composite negative electrode) ( Figure 1 a), which should be assembled in such a way that intimate interfaces can be generated both between grains of the materials in each of the three parts as well as between the components themselves. To achieve these objectives, the materials should be selected principally using electrochemical criteria to insure high performances, but also taking into account additional criteria such as chemical compatibility suitable for "high" temperature sintering process.The composite electrodes should possess a high content of electrochemically active material (AM) for the energy density and electronic and ionic conductor additives to ensure efficient and homogeneous transfer of electrons and ions through the electrode volume. The composite electrodes should also display good mechanical behavior to allow easy handling and to insure cell lifetime, but also, more importantly, to permit volume variation upon Li insertion/extraction. It has been shown that oxide materials such as LiCoO 2 or LiMn 0.5 Ni 0.5 O 2 react at temperatures between 300 ° C and 500 ° C in presence of a Nasicon-type solid electrolyte with the formation of an ionblocking interface. [ 2 ] Another approach is to use ductile glasses or glass ceramics, such as those based on sulfi des, to assemble batteries by cold compaction. [ 4 ] However, beyond the intrinsic instability of sulfi des under air and water, which increases the process cost, cold-compacted systems present strong interface limitations implying to apply pressure on the battery to insure its cycle life. Finally, the stored energy, which is linked to the thickness of the composite electrodes, is limited to less than a few hundred μ Ah.cm − 2 .Based on all the previously listed co...

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mentioning

confidence: 99%

A New Approach to Develop Safe All‐Inorganic Monolithic Li‐Ion Batteries

Aboulaich

Bouchet

Delaizir

et al. 2011

Advanced Energy Materials

147

113

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“…AC impedance measurement was performed at 30°C with gold blocking electrodes in order to discuss the effects of microstructures on ionic conductivities for Li 2.2 C 0. 8 by CFS process, and sintered at 400, 450, 500°C for 1 min by SPS process are shown in Fig. 3.…”

Section: Resultsmentioning

confidence: 99%

“…8 3) and ii) this electrolyte could form solid-solution with ionic-insulative Li 2 CO 3 , which is often covered on the surface of conventional electrode and/or electrolyte particles in air. 13), 14) The bulk-type ASS-LIB has been actually assembled with this Li 2.2 C 0.8 B 0.2 O 3 , and has been confirmed reversible capacity of LiCoO 2 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement of lithium-ion conductivity for Li2.2C0.8B0.2O3 by spark plasma sintering

Okumura

Takeuchi

Kobayashi

2017

J. Ceram. Soc. Japan

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Lithium-ion conductivity of Li 2.2 C 0.8 B 0.2 O 3 pellet is 2.1 © 10 ¹6 S cm ¹1 at 30°C after sintering at 450°C by spark-plasma sintering (SPS) process, which is about three times higher than the conductivity of the pellet sintered at 660°C in conventional furnace. The ionic resistance at grain boundary was especially minimalized by SPS process, which would be related to the grain-growth suppression under densification as confirmed by surficial SEM image. Improvement of chargedischarge capacity could be measured at all-solid-state lithium battery assembled by the SPS process (LiCoO 2 Li 2.2 C 0.8 B 0.2 O 3 composite electrolyte/ Li 2.2 C 0.8 B 0.2 O 3 /dry polymer/Li foil) compared with the same compositions of the battery assembled by conventional furnace sintering, which would be due to the enhancement of the ionic transfer at LiCoO 2 /Li 2.2 C 0.8 B 0.2 O 3 hetero interface as well as

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“…Although electrochemical cycling of all-solid-state Li-ion batteries based on NASICON-type electrolytes has been realized [23][24][25][26][27][28][29], some factors must be taken into consideration for integrating the solid thin-film batteries onto microelectronic devices. For example, a post-annealing of as-deposited film is generally necessary to guarantee its practical use in batteries.…”

Section: Introductionmentioning

confidence: 99%

“…This annealing step, however, is not compatible with the integrated silicon substrate. In addition, the performance of the batteries will be deteriorated by the Li-inert interface formed due to the side reactions between electrolyte and cathode film during heating [28,29]. Therefore, preference should be given to the low-temperature preparation of the films, if they exhibit acceptable electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%