Optimization of Block Copolymers As Electrolytes for Lithium Metal Batteries

Bouchet, Renaud; Devaux, Didier; Glé, David; Phan, Trang N. T.; Gigmès, Didier; Deschamps, Marc

doi:10.1149/ma2013-02/6/502

Cited by 3 publications

(3 citation statements)

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“…This patent discloses scanning electron microscope (SEM) images, the evolution of the capacity, the coulombic efficiency, and the evolution of the internal resistance according to the number of cycles. Extensive research has also been carried out on solid electrolytes based on cross-linked copolymers [48,49]. These latest patents are well-detailed, with data about the mechanical strength of the copolymer as a function of the mass content of lithium salt, ionic conductivity, glass transition temperature, and the melting temperature as a function of the mass content of lithium salt, cycling curve, and coulombic efficiency according to the number of cycles.…”

Section: Solid Polymer Electrolytesmentioning

confidence: 99%

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

Karkar,

Houache,

Yim

et al. 2024

Batteries

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This review focuses on the promising technology of solid-state batteries (SSBs) that utilize lithium metal and solid electrolytes. SSBs offer significant advantages in terms of high energy density and enhanced safety. This review categorizes solid electrolytes into four classes: polymer, oxide, hybrid, and sulfide solid electrolytes. Each class has its own unique characteristics and benefits. By exploring these different classes, this review aims to shed light on the diversity of materials and their contributions to the advancement of SSB technology. In order to gain insights into the latest technological developments and identify potential avenues for accelerating the progress of SSBs, this review examines the intellectual property landscape related to solid electrolytes. Thus, this review focuses on the recent SSB technology patent filed by the main companies in this area, chosen based on their contribution and influence in the field of batteries. The analysis of the patent application was performed through the Espacenet database. The number of patents related to SSBs from Toyota, Samsung, and LG is very important; they represent more than 3400 patents, the equivalent of 2/3 of the world’s patent production in the field of SSBs. In addition to focusing on these three famous companies, we also focused on 15 other companies by analyzing a hundred patents. The objective of this review is to provide a comprehensive overview of the strategies employed by various companies in the field of solid-state battery technologies, bridging the gap between applied and academic research. Some of the technologies presented in this review have already been commercialized and, certainly, an acceleration in SSB industrialization will be seen in the years to come.

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Section: Solid Polymer Electrolytesmentioning

confidence: 99%

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

Karkar,

Houache,

Yim

et al. 2024

Batteries

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“…Polymer-based ASSBs are an attractive battery technology due to the relative ease and flexibility of manufacturing, as already demonstrated by the Blue Solutions group. , Indeed, the past decade has seen a resurgence of SPE research for application in Li metal batteries, ,− with many of the studies involving the archetypal polyether based systems − and others based on a polycarbonate polymer matrix into which the lithium salt is dissolved. , Polymers prepared from polymerizable ionic liquids have also been shown to be good polymer hosts for alkali metal salts, with and without the presence of an ionic liquid cosolvent. − A key challenge with all of these SPE systems is the difficulty in simultaneously achieving high ionic conductivity and high electrochemical stability, while preserving good mechanical stability. A recent approach to address this is the design of block copolymers whereby a more rigid, ionophobic polymer is copolymerized with another polymer block, such as an archetypal polyether-based systems, into which the lithium salt is dissolved.…”

Section: Introductionmentioning

confidence: 99%

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

Forsyth

Makhlooghiazad

Mendes

et al. 2023

ACS Appl. Energy Mater.

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Triblock copolymers containing an ionophilic polymerized ionic liquid block, sandwiched between two ionophobic polystyrene blocks, were investigated as solid polymer electrolytes (SPE) to simultaneously provide mechanically robust, free-standing membranes with high lithium conductivity and an optimized electrolyte composition. The conductivity reached 8 × 10–5 S cm–1 and 6.5 × 10–4 S cm–1 at 30 and 80 °C, respectively, with an anodic stability above 4.5 V. Highly stable Li metal symmetric cycling was demonstrated, with an overpotential of 130 mV for over 300 h at 50 °C at a current density of 0.5 mA cm–2/0.5 mAh cm–2. Attempts were also made to incorporate the SPE as the binder in an LMO cathode formulation. The best cell performance, however, was obtained when substituting the SPE in the LMO cathode formulation with a PMA solid-state gel electrolyte, resulting in a high-performance solid-state Li|polymer eletrolyte|LMO device with stable cycling at C/5, and an impressive capacity retention (i.e., 105 mAh g–1 after 150 cycles at 0.1 mA cm–2) with a Coulombic efficiency around 99.4%.

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“…Recently, the revival of this battery cell type was proven by the continuing attempts to implement rechargeable lithium-metal cells in various applications. [16][17][18] In order to reach a breakthrough enabling commercialization, several challenges need to be faced, where viable solutions are required. 19,20 Among the various addressed solutions, the suppression of high surface area lithium formation (HSAL 21 ), is essential for the safety and performance characteristics improvement of LMBs.…”

mentioning

confidence: 99%

Lithium-Powder Based Electrodes Modified with ZnI₂ for Enhanced Electrochemical Performance of Lithium-Metal Batteries

Kolesnikov

Zhou

Kolek

et al. 2019

J. Electrochem. Soc.

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Lithium-powder electrodes, prepared via paste casting method using lithium powder and polyisobutylene (PIB) as a binder, were investigated for their electrochemical properties in lithium-metal cells. The electrode paste casting method allows preserving the spherical shape of lithium-powder particles during processing to electrodes. However, these lithium-powder based electrodes suffer from poor active material utilization, as electronic isolation of lithium particles during the lithium electrodissolution process was observed to occur. In order to improve the lithium inter-particle contact as well as the contact with the current collector, a simple and effective chemical modification of the lithium-powder based electrodes was considered. Using a cementation reaction with ZnI 2 , the growth of a Li-Zn intermetallic ("alloy") between the lithium-powder particles and the surface of the lithium powder, lead to an increase of the active material utilization and overcame the side reactions due to lithium electrodissolution. Besides increasing the active material utilization, such simple chemical modification of the lithium-powder based electrodes improved the electrochemical performance resulting in more stable cycling behavior with low polarization and longer cycle life in both Li||Li-symmetric and Li||NMC 622 cells.

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Optimization of Block Copolymers As Electrolytes for Lithium Metal Batteries

Abstract: not Available.

Cited by 3 publications

References 4 publications

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

Lithium-Powder Based Electrodes Modified with ZnI₂ for Enhanced Electrochemical Performance of Lithium-Metal Batteries

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Optimization of Block Copolymers As Electrolytes for Lithium Metal Batteries

Abstract: not Available.

Cited by 3 publications

References 4 publications

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

An Industrial Perspective and Intellectual Property Landscape on Solid-State Battery Technology with a Focus on Solid-State Electrolyte Chemistries

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

Lithium-Powder Based Electrodes Modified with ZnI2 for Enhanced Electrochemical Performance of Lithium-Metal Batteries

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Lithium-Powder Based Electrodes Modified with ZnI₂ for Enhanced Electrochemical Performance of Lithium-Metal Batteries