High Li-ion conductive composite polymer electrolytes for all-solid-state Li-metal batteries

Zhou, Qiongyu; Li, Qinghui; Liu, Songli; Yin, Xin; Huang, Bing; Sheng, Minqi

doi:10.1016/j.jpowsour.2020.228929

Cited by 37 publications

(23 citation statements)

References 47 publications

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“…Lithium-ion batteries (LIBs) are the wildest application electrical energy storage device owing to their high energy density and long service life cycle. [1][2][3][4] Nevertheless, the safety issues, high cost, and the limited lithium resources impede from their continuous and widespread utilization and the subsequently development. [5][6][7] As a promising candidate to substitute the LIBs, ZIBs have unique merits including high safety, environmentally friendly, resource abundance, and convenient preparation, arising significant attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

et al. 2021

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Designing high performance electrolyte is an efficient strategy to circumvent these problems. As one of the most important components, electrolytes provide the basic operating environment to guarantee the transmission of the Zn 2+ between the two electrodes during the charge-discharge processes, affect the Zn 2+ /Zn plating/ stripping on the anode and deciding the electrochemically stable potential windows. [12] Since the utilization of alkaline electrolytes in batteries in earlier studies, Zn|KOH|MnO 2 batteries became a hot topic. [13] However, the using of an alkaline electrolyte always leads to the growth of Zn dendrites and the corrosion of the anode, resulting in rapid capacity fading. [14][15][16] Until 1986, the replacement of corrosive alkaline electrolyte systems by neutral aqueous electrolytes greatly improved the performance and safety of ZIBs. [17] Although the aqueous electrolytes alleviated the corrosion of the Zn electrode in some extent, the problems related to the growth of dendrites and the dissolution of the cathode, especially the limited electrochemical stability window (≈1.23 V) still are the challenge in the application of ZIBs. [18][19][20] The aqueous electrolytes of ZIBs often suffer from the water splitting process, including hydrogen evolution reaction and oxygen evolution reaction. [21][22][23] Therefore, in order to overcome the problems mentioned above, "beyond aqueous" electrolytes for ZIBs have attracted extensive attention in recent years. [24][25][26] At present, the "beyond aqueous" electrolytes for ZIBs have been reported mainly include liquid organic electrolytes and solid electrolytes. Zn anode in the organic electrolytes have high thermodynamic stability, avoiding the appearance of passivation products inevitably generated in traditional aqueous solution, i.e., ZnO and Zn(OH) 4 −2. [27] Solid-state electrolytes have sufficient mechanical strength to inhibit the growth of dendrites. [28] Moreover, the "beyond aqueous" electrolytes without water fundamentally avoid the decomposition of water and the formation of side products related to water. Compared with aqueous electrolytes, the "beyond aqueous" electrolytes exhibit a wide electrochemical stability window (Figure 1) and excellent thermodynamic stability of Zn anode leading to Zn plating/ stripping high reversibility with higher Coulombic efficiencies (CEs). [29] Although significant advances have been made in improving the electrochemical performance of the "beyond aqueous" electrolytes for ZIBs, several severe issues still exist, which largely prevent the development of "beyond aqueous" ZIBs. [30][31][32][33][34][35] The main issues of "beyond aqueous" electrolytes With the growing demands for large-scale energy storage, Zn-ion batteries (ZIBs) with distinct advantages, including resource abundance, low-cost, high-safety, and acceptable energy density, are considered as potential substitutes for Li-ion batteries. Although numerous efforts are devoted to design and develop high performance cathodes and aqueous electrolyt...

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

et al. 2021

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“…Generally, there are three main categories according to the characteristic of SSEs: inorganic solid electrolytes (ISEs), which are solid polymer electrolytes (SPEs), and com-Polymers 2021, 13, 2468 2 of 13 posite polymer electrolytes (CPEs) [17][18][19][20]. ISEs (e.g., SiO 2 , TiO 2 , LLZO, and LAGP) are well known by their mechanical rigidity and nonflammability.…”

Section: Introductionmentioning

confidence: 99%

Excellent Performances of Composite Polymer Electrolytes with Porous Vinyl-Functionalized SiO2 Nanoparticles for Lithium Metal Batteries

Zhan

Wang

et al. 2021

Polymers

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Composite polymer electrolytes (CPEs) incorporate the advantages of solid polymer electrolytes (SPEs) and inorganic solid electrolytes (ISEs), which have shown huge potential in the application of safe lithium-metal batteries (LMBs). Effectively avoiding the agglomeration of inorganic fillers in the polymer matrix during the organic–inorganic mixing process is very important for the properties of the composite electrolyte. Herein, a partial cross-linked PEO-based CPE was prepared by porous vinyl-functionalized silicon (p-V-SiO2) nanoparticles as fillers and poly (ethylene glycol diacrylate) (PEGDA) as cross-linkers. By combining the mechanical rigidity of ceramic fillers and the flexibility of PEO, the as-made electrolyte membranes had excellent mechanical properties. The big special surface area and pore volume of nanoparticles inhibited PEO recrystallization and promoted the dissolution of lithium salt. Chemical bonding improved the interfacial compatibility between organic and inorganic materials and facilitated the homogenization of lithium-ion flow. As a result, the symmetric Li|CPE|Li cells could operate stably over 450 h without a short circuit. All solid Li|LiFePO4 batteries were constructed with this composite electrolyte and showed excellent rate and cycling performances. The first discharge-specific capacity of the assembled battery was 155.1 mA h g−1, and the capacity retention was 91% after operating for 300 cycles at 0.5 C. These results demonstrated that the chemical grafting of porous inorganic materials and cross-linking polymerization can greatly improve the properties of CPEs.

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“…[284,285] To date, apart from constructing protective layers on Li metal, another effective strategy is developing new electrolytes/additives to stabilize the interface of electrolyte/electrode and improve Li deposition/stripping. [286][287][288] The morphology of SEI layer was various in different electrolyte, ranging from dendritic, fibrous, columnar to granular. Electrolyte additives, like fluoroethylene carbonate, vinylene carbonate, propylene carbonate, CsPF 6 , LiAsF 6 , have been demonstrated with high efficiency in tuning SEI quality, resulting in a stable and thin Li deposition layer before initial several charging/discharging cycles.…”

Section: Tuning Electrode/electrolyte Interfacial Compatibilitymentioning

confidence: 99%

Commercialization‐Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

Cao

Liang

Zhang

et al. 2021

Small

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vehicles (HEVs), because of their high energy density and long lifetime. [1][2][3] In recent years, the ever-growing demand on electric vehicles contributes to the continuous growth of the battery market, and the energy storage devices of EVs/HEVs raise stern demands on higher energy density (>300 Wh kg −1 ) and lower cost (500 Wh kg −1 ), and the standard parameters for different electrode systems toward this high energy density goal are well summarized in the previous works. [7][8][9] In particular, the innovative battery chemistries (i.e., Li-metal battery and all-solid-state lithium battery) using Li metal as anode, exhibit much higher energy density than current lithium-ion batteries, whereas some technological issues are needed to be addressed first, such as dendrite formation suppression, industrial battery Current lithium-ion battery technology is approaching the theoretical energy density limitation, which is challenged by the increasing requirements of ever-growing energy storage market of electric vehicles, hybrid electric vehicles, and portable electronic devices. Although great progresses are made on tailoring the electrode materials from methodology to mechanism to meet the practical demands, sluggish mass transport, and charge transfer dynamics are the main bottlenecks when increasing the areal/volumetric loading multiple times to commercial level. Thus, this review presents the state-of-the-art developments on rational design of the commercialization-driven electrodes for lithium batteries. First, the basic guidance and challenges (such as electrode mechanical instability, sluggish charge diffusion, deteriorated performance, and safety concerns) on constructing the industry-required high mass loading electrodes toward commercialization are discussed. Second, the corresponding design strategies on cathode/anode electrode materials with high mass loading are proposed to overcome these challenges without compromising energy density and cycling durability, including electrode architecture, integrated configuration, interface engineering, mechanical compression, and Li metal protection. Finally, the future trends and perspectives on commercializationdriven electrodes are offered. These design principles and potential strategies are also promising to be applied in other...

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High Li-ion conductive composite polymer electrolytes for all-solid-state Li-metal batteries

Cited by 37 publications

References 47 publications

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Excellent Performances of Composite Polymer Electrolytes with Porous Vinyl-Functionalized SiO2 Nanoparticles for Lithium Metal Batteries

Commercialization‐Driven Electrodes Design for Lithium Batteries: Basic Guidance, Opportunities, and Perspectives

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