[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

All-solid-state batteries (ASSBs) have attracted enormous attention as one of the critical future technologies for safe and high energy batteries. With the emergence of several highly conductive solid electrolytes in recent years, the bottleneck is no longer Li-ion diffusion within the electrolyte. Instead, many ASSBs are limited by their low Coulombic efficiency, poor power performance, and short cycling life due to the high resistance at the interfaces within ASSBs. Because of the diverse chemical/physical/mechanical properties of various solid components in ASSBs as well as the nature of solid-solid contact, many types of interfaces are present in ASSBs. These include loose physical contact, grain boundaries, and chemical and electrochemical reactions to name a few. All of these contribute to increasing resistance at the interface. Here, we present the distinctive features of the typical interfaces and interphases in ASSBs and summarize the recent work on identifying, probing, understanding, and engineering them. We highlight the complicated, but important, characteristics of interphases, namely the composition, distribution, and electronic and ionic properties of the cathode-electrolyte and electrolyte-anode interfaces; understanding these properties is the key to designing a stable interface. In addition, conformal coatings to prevent side reactions and their selection criteria are reviewed. We emphasize the significant role of the mechanical behavior of the interfaces as well as the mechanical properties of all ASSB components, especially when the soft Li metal anode is used under constant stack pressure. Finally, we provide full-scale (energy, spatial, and temporal) characterization methods to explore, diagnose, and understand the dynamic and buried interfaces and interphases. Thorough and in-depth understanding on the complex interfaces and interphases is essential to make a practical high-energy ASSB.

/pdf/interfaces-and-interphases-in-all-solid-state-batteries-with-1oqa3azz6p.pdf

Interfaces and Interphases in All-Solid-State Batteries with Inorganic Solid Electrolytes.

Solid state electrolyte systems boasting Li+ conductivity of >10 mS cm−1 at room temperature have opened the potential for developing a solid state battery with power and energy densities that are competitive with conventional liquid electrolyte systems. The primary focus of this review is twofold. First, differences in Li penetration resistance in solid state systems are discussed, and kinetic limitations of the solid state interface are highlighted. Second, technological challenges associated with processing such systems in relevant form factors are elucidated, and architectures needed for cell level devices in the context of product development are reviewed. Specific research vectors that provide high value to advancing solid state batteries are outlined and discussed.

Review—Practical Challenges Hindering the Development of Solid State Li Ion Batteries

Solid composite electrolytes (SCEs) that combine the advantages of solid polymer electrolytes (SPEs) and inorganic ceramic electrolytes (ICEs) present acceptable ionic conductivity, high mechanical strength, and favorable interfacial contact with electrodes, which greatly improve the electrochemical performance of all-solid-state batteries compared to single SPEs and ICEs. However, there are many challenges to overcome before the practical application of SCEs, including the low ionic conductivity less than 10-3 S cm-1 at ambient temperature, poor interfacial stability, and high interfacial resistance, which greatly restrict the room temperature performance. Herein, the advances of SCEs applied in all-solid-state lithium batteries are presented, including the Li ion migration mechanism of SCEs, the strategies to enhance the ionic conductivity of SCEs by various morphologies of ICEs, and construction methods of the low resistance and stable interfaces of SCEs with both cathode and anode. Finally, some typical applications of SCEs in lithium batteries are summarized and future development directions are prospected. This work presents how it is quite significant to further enhance the ionic conductivity of SCEs by developing the novel SPEs with the special morphology of ICEs for advanced all-solid-state lithium batteries.

https://onlinelibrary.wiley.com/doi/epdf/10.1002/advs.201903088

Progress and Perspective of Ceramic/Polymer Composite Solid Electrolytes for Lithium Batteries

Developing reversible lithium metal anodes with high rate capability is one of the central aims of current battery research. Lithium metal anodes are not only required for the development of innova...

Physicochemical Concepts of the Lithium Metal Anode in Solid-State Batteries.

The recent discovery of highly conductive solid-state electrolytes (SSEs) has led to tremendous progress in the development of all-solid-state batteries (ASSBs). Though promising, they still face barriers that limit their practical application, such as poor interfacial stability, scalability challenges and production safety. Additionally, efforts to develop sustainable manufacturing of lithium ion batteries are still lacking, with no prevailing strategy developed yet to handle recyclability of ASSBs. To date, most SSE research has been largely focused on the discovery of novel electrolytes. Recent review articles have extensively examined a broad spectrum of these SSEs using evaluation factors such as conductivity and chemical stability. Recognizing this, in this Review we seek to evaluate SSEs beyond conventional factors and offer a perspective on various bulk, interface and nanoscale phenomena that require urgent attention within the scientific community. We provide a realistic assessment of the current state-of-the-art characterization techniques and evaluate future full cell ASSB prototyping strategies. We hope to offer rational solutions to overcome some major fundamental obstacles faced by the ASSB community, as well as potential strategies toward a sustainable ASSB recycling model.

/pdf/from-nanoscale-interface-characterization-to-sustainable-562jvv2w2i.pdf

From nanoscale interface characterization to sustainable energy storage using all-solid-state batteries

Author(s): Hirsh, Hayley S; Li, Yixuan; Tan, Darren HS; Zhang, Minghao; Zhao, Enyue; Meng, Y Shirley

/pdf/sodium-ion-batteries-paving-the-way-for-grid-energy-storage-i9ex11532p.pdf

Sodium-Ion Batteries Paving the Way for Grid Energy Storage

Author(s): Tan, Darren HS; Chen, Yu-Ting; Yang, Hedi; Bao, Wurigumula; Sreenarayanan, Bhagath; Doux, Jean-Marie; Li, Weikang; Lu, Bingyu; Ham, So-Yeon; Sayahpour, Baharak; Scharf, Jonathan; Wu, Erik A; Deysher, Grayson; Han, Hyea Eun; Hah, Hoe Jin; Jeong, Hyeri; Lee, Jeong Beom; Chen, Zheng; Meng, Ying Shirley | Abstract: [Figure: see text].

/pdf/carbon-free-high-loading-silicon-anodes-enabled-by-sulfide-3dkgef43gk.pdf

Carbon-free high-loading silicon anodes enabled by sulfide solid electrolytes.

Sulfide-based solid electrolytes are promising candidates for all solid-state batteries (ASSBs) due to their high ionic conductivity and ease of processability. However, their narrow electrochemica...

/pdf/elucidating-reversible-electrochemical-redox-of-li6ps5cl-7hoaah0ilc.pdf

Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte

Author(s): Doux, Jean-Marie; Nguyen, Han; Tan, Darren HS; Banerjee, Abhik; Wang, Xuefeng; Wu, Erik A; Jo, Chiho; Yang, Hedi; Meng, Ying Shirley

/pdf/stack-pressure-considerations-for-room-temperature-all-solid-197zusyout.pdf

Darren H. S. Tan

Papers

From nanoscale interface characterization to sustainable energy storage using all-solid-state batteries

Sodium-Ion Batteries Paving the Way for Grid Energy Storage

Carbon-free high-loading silicon anodes enabled by sulfide solid electrolytes.

Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte

Stack Pressure Considerations for Room Temperature All-Solid-State Lithium Metal Batteries