Higher Critical Current Density in Lithium Garnets at Room Temperature by Incorporation of an Li<sub>4</sub>SiO<sub>4</sub>-Related Glassy Phase and Hot Isostatic Pressing

Patra, Srabani; Janani, N.; Chakravarty, S.; Murugan, Ramaswamy

doi:10.1021/acsaem.9b02400

Cited by 22 publications

(17 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Combining with hot isostatic pressing post-treatment, a large improvement of critical current density (CCD) was achieved. [182,183] Lithium glass systems with various compositions have also been studied. Glasses have low softening and melting temperatures that could induce liquid phase sintering and their presence at grain boundaries may also help to increase mechanical strength.…”

Section: Conventional High-temperature Sinteringmentioning

confidence: 99%

“…Third factor is sintering additives to reduce grain boundaries. The sintering additives such as Li 3 PO 4 , [142,179,182] LiAlO 2 , [204] Li 3 OCl, [209] etc. were reduced grain boundaries and increased CCD efficiently.…”

Section: Compatibility To LI Metal Anodementioning

confidence: 99%

“…[ 224 ] Murugan and co‐workers also reported the effectiveness of HIP as the post‐treatment. [ 182,183 ] The density and conductivity were improved as well as transparency in Li 6.16 Al 0.28 La 3 Zr 2 O 12 pellet. Furthermore, enhanced CCD was also achieved owing to the reduction of porosity and improved grain boundary strength.…”

Section: Processing Llzo Ceramicsmentioning

confidence: 99%

See 2 more Smart Citations

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

Chen

Wang

et al. 2022

Small

View full text Add to dashboard Cite

the limited electrochemical window of liquid organic electrolytes, high-voltage cathode materials and Li metal cannot be incorporated in current battery chemistry, thus making it challenge to further improve the energy density. Moreover, the flammability of liquid electrolytes also poses serious safety concerns of LIBs. Under such context, solid-state battery (SSB) using solid state electrolytes (SSEs) have attracted much attention. SSEs are typically nonflammable with wide electrochemical window and high mechanical strength. These merits allow to employ high-voltage cathodes and the "holy-grail" Li metal anode (≈3860 mAh g −1 ), offering drastic improvements in energy density and safety performance. Owing to these promises, SSB has been intensively studies in recent years.Developing a suitable solid electrolyte is critical to realize SSB technology. Substantial efforts have been made on developing various SSE systems, including NASICON (Na Super Ion Conductor)-type, perovskite-type, Garnet-type Li 7 La 3 Zr 2 O 12 (LLZO), sulfide-based, polymer electrolytes, and composite electrolytes. Among these materials, LLZO possesses high ionic (10 −4 -10 −3 S cm −1 ) and low electronic (σ e < 10 −8 S cm −1 ) conductivities at room temperature, [2,3] good mechanical strength, and good electrochemical stability. As such, it has received tremendous attention since its discovery in 2007. [3] Numerous experimental and computational studies have been conducted over the past decades. LLZO-based SSBs have also been demonstrated through various interface engineering strategies.Various formats of LLZO electrolyte have been studied so far. Based on the properties and processing routes, they can be in general categorized into three types, ceramic bulk/tape-based, thin film-based, and single crystal-based electrolytes (Figure 1 and Table 1). Among them, thin film LLZO processing faces the difficulties of Li loss and impurity phase formation during deposition and annealing (Figure 1a). Successful preparation of dense, uniform, and single phase LLZO films is rarely demonstrated. The reported conductivities of thin film LLZO in most studies are between 10 −8 and 10 −4 S cm −1 , which is far behind its ceramic counterpart. In addition, due to geometric limit (≈µm), the capacity of thin film batteries is low, making them only applicable to microelectronic devices. Single crystal growth also faces many processing-related difficulties (Figure 1b). The LLZO single crystal is mostly for the purposes of mechanistic study in LLZO crystal chemistry, which can be investigated without the interference from microstructural defects. [5] From Garnet-type solid electrolyte Li 7 La 3 Zr 2 O 12 (LLZO) is widely considered as one of the most promising candidates for solid state batteries (SSBs) owing to its high ionic conductivity and good electrochemical stability. Since its discovery in 2007, great progress has been made in terms of crystal chemistry, chemical and electrochemical properties, and battery application. Nonetheless, reliable and controll...

show abstract

Section: Conventional High-temperature Sinteringmentioning

confidence: 99%

Section: Compatibility To LI Metal Anodementioning

confidence: 99%

Section: Processing Llzo Ceramicsmentioning

confidence: 99%

See 1 more Smart Citation

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

Chen

Wang

et al. 2022

Small

View full text Add to dashboard Cite

show abstract

“…The color of the markers indicates the solid electrolyte material family (pink markers, LLZO; yellow markers, Na-based NASICONs; green markers, sulfides; gray marker, hybrid electrolyte). The data for this figure are collected from refs , , − . (b) XRD patterns and optical images of LLZO before and after the HIP treatment.…”

Section: Critical Survey Of Isp Implementations In Ssb Fieldmentioning

confidence: 99%

The Role of Isostatic Pressing in Large-Scale Production of Solid-State Batteries

Dixit

Beamer²,

Amin

et al. 2022

ACS Energy Lett.

View full text Add to dashboard Cite

Scalable processing of solid-state battery (SSB) components and their integration is a key bottleneck toward the practical deployment of these systems. In the case of a complex system like a SSB, it becomes increasingly vital to envision, develop, and streamline production systems that can handle different materials, form factors, and chemistries as well as processing conditions. Herein, we highlight isostatic pressing (ISP) as a versatile processing platform for large-scale production of the currently most promising solid electrolyte materials. We briefly summarize the development of ISP techniques as well as the processing methods and windows accessible. Subsequently, we discuss recent reports on SSBs that leverage ISP techniques and their impact on the electrochemical performance of the systems. Finally, we also provide a techno-economic analysis for implementing ISP at scale along with some key perspectives, challenges, and future directions for large-scale production of SSB components and integration.

show abstract

“…Rechargeable lithium-ion batteries have attained importance in day-to-day applications from portable electronic devices to electric vehicles. , However, conventional lithium-ion batteries with organic liquid electrolytes need an update from ignitability and liquid leakage as they can catch fire at high temperatures and can accidentally cause short circuit. − To overcome these challenges, the development of solid-state lithium batteries (SSLBs) is recognized as one of the superior approaches. SSLBs have several advantages, including the evasion of shortcomings associated with liquid leakage, vaporization, and flammability. , Moreover, in addition to enhanced safety, many solid electrolytes have a broad electrochemical potential window, which allows for the application of high-voltage electrode materials in solid-state lithium batteries, resulting in high energy density. − …”

Section: Introductionmentioning

confidence: 99%

3D Flexible Electrospun Nanocomposite Polymer Electrolyte Based on Li_1.45Al_0.45Ge_0.2Ti_1.35(PO₄)₃ for Lithium Metal Batteries

Panneerselvam,

Murugan,

O V

et al. 2023

Energy Fuels

Self Cite

View full text Add to dashboard Cite

Solid-state lithium batteries recently gained significant attention because of their enhanced safety compared to that of liquidbased battery systems. However, ceramic solid-state electrolytes suffer from various challenges such as electrode−electrolyte interface issues and poor flexibility. In this scenario, combining the solid electrolytes with polymer electrolytes would be a wise choice. Polymer electrolytes such as poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) show good thermal stability and mechanical strength. On the other hand, NASICON (sodium superionic conductor)-structured lithium aluminum titanium phosphate (LATP) ceramic solid electrolytes exhibit high lithium-ion conductivity, and thus, NASICON-type nanocomposite polymer electrolytes have both advantages. This composition has enhanced interfacial stability, ionic conductivity, and mechanical strength, making it ideal for developing high-performance nanocomposite polymer electrolytes. In this work, a germanium-doped LATP (Li 1.45 Al 0.45 Ge 0.2 Ti 1.35 (PO 4 ) 3 )-PVdF-HFP nanocomposite polymer electrolyte has been prepared by the electrospinning technique. Electrochemical analysis shows that 8 wt % Li 1.45 Al 0.45 Ge 0.2 Ti 1.35 (PO 4 ) 3 in the PVdF-HFP nanocomposite polymer electrolyte (NPE-8) exhibits high lithium-ion conductivity, good wettability, and enhanced interface stability and inhibits dendrite propagation. NPE-8 exhibits a wide electrochemical potential window of up to 5 V. A full cell with lithium metal as an anode and lithium iron phosphate as a cathode fabricated by incorporating NPE-8 as an electrolyte delivers an initial discharge capacity of 154 mA h g −1 at 0.1C with a Coulombic efficiency of 98% at room temperature. The fabricated cell demonstrates a superior capacity retention and stable cycling than the pristine PVdF-HFP electrolyte.

show abstract

Higher Critical Current Density in Lithium Garnets at Room Temperature by Incorporation of an Li₄SiO₄-Related Glassy Phase and Hot Isostatic Pressing

Cited by 22 publications

References 39 publications

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

The Role of Isostatic Pressing in Large-Scale Production of Solid-State Batteries

3D Flexible Electrospun Nanocomposite Polymer Electrolyte Based on Li_1.45Al_0.45Ge_0.2Ti_1.35(PO₄)₃ for Lithium Metal Batteries

Contact Info

Product

Resources

About

Higher Critical Current Density in Lithium Garnets at Room Temperature by Incorporation of an Li4SiO4-Related Glassy Phase and Hot Isostatic Pressing

Cited by 22 publications

References 39 publications

Processing and Properties of Garnet‐Type Li7La3Zr2O12 Ceramic Electrolytes

Processing and Properties of Garnet‐Type Li7La3Zr2O12 Ceramic Electrolytes

The Role of Isostatic Pressing in Large-Scale Production of Solid-State Batteries

3D Flexible Electrospun Nanocomposite Polymer Electrolyte Based on Li1.45Al0.45Ge0.2Ti1.35(PO4)3 for Lithium Metal Batteries

Contact Info

Product

Resources

About

Higher Critical Current Density in Lithium Garnets at Room Temperature by Incorporation of an Li₄SiO₄-Related Glassy Phase and Hot Isostatic Pressing

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

Processing and Properties of Garnet‐Type Li₇La₃Zr₂O₁₂ Ceramic Electrolytes

3D Flexible Electrospun Nanocomposite Polymer Electrolyte Based on Li_1.45Al_0.45Ge_0.2Ti_1.35(PO₄)₃ for Lithium Metal Batteries