Cooperative stabilization of bi-electrodes with robust interphases for high-voltage lithium-metal batteries

Liu, Qianqian; Chen, Zerui; Liu, Yan; Hong, Youran; Wang, Weina; Wang, Jianghao; Zhao, Bo; Xu, Yifei; Wang, Jiangwei; Fan, Xiulin; Li, Linsen; Wu, Hao

doi:10.1016/j.ensm.2021.02.039

Cited by 59 publications

(70 citation statements)

References 33 publications

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“…The existence of CC/CH (284.8 eV), CO (286.4 eV), CO (288.4 eV), and Li 2 CO 3 (289.8 eV) can be confirmed from the C 1s spectra (Figure 4d–f). [ 42 ] In addition, positively shifted CO peak can be attributed to the polymerization process (usually accompanied by gas generation), suggesting that considerable solvent molecules in STD participate in the interface reaction even at a later stage. The three peaks at 531.3, 532, and 533.4 eV in O 1s spectra (Figure S16a–c, Supporting Information) are assigned to CaO/

{CO}_{3}^{- 2}

{PO}_{4}^{- 3}

, CO, and CO, respectively.…”

Section: Resultsmentioning

confidence: 99%

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃

Peng

Liu

Jiang

et al. 2022

Advanced Energy Materials

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the cycling of the Li metal anode, it is difficult for the conventional electrolyte to form stable and homogeneous solid electrolyte interphase (SEI) layer on the electrode to protect the interface, and the consequent incomplete SEI will further induce the growth of Li dendrites and finally cause cell failure. [7,8] Poor recyclability and serious safety problems have greatly hindered the commercialization of LMBs.So far, tremendous efforts have been invested to inhibit the growth of Li dendrites and boost the Coulombic efficiency (CE) of LMB, multiple methods such as constructing artificial SEI, [9] using 3D porous current collectors, [10] modifying separators, [11,12] optimizing electrolyte composition and forming Li-based alloys have been adopted. [13][14][15] From the perspective of commercialization potential, electrochemical performance, and environmental protection, adding the appropriate amount of additives to commercial carbonate electrolytes is undoubtedly the most advantageous way to optimize the performance of LMBs. [16] To date, additives like some sulfur-containing compounds, [17] inorganic salts, [18][19][20] and fluorine-containing materials [21,22] have been found with high Li-metal compatibility and proved effective in forming stable SEI layer. Nevertheless, most additives will preferentially participate in the interfacial reactions that cause their concentration to drop, leading to the gradual failure of the additives during cycling. [23] It should be noted that increasing the dosage of additives will not only raise the cost, but also accelerate the unfavored side reactions due to the increased concentration of unstable active groups (such as -F, -S(O) 2 -, etc.) and higher viscosity, leading to electrolyte deterioration and gas production (Figure 1a). [24,25] To conquer the above issues, several LiNO 3containing additives have been successfully developed recently inspired by the sustained-release strategy, and their impressive performances demonstrate the great application potential of this method. [26,27] Therefore, optimizing the overall performance and cost of additives designed based on this strategy is of great research significance.Herein, we adopt cheap, environment-friendly CaCO 3 nanoparticles (40-80 nm) as a novel solid additive for LMBs. The added nano CaCO 3 additive exhibits a unique sustainedrelease mechanism as is shown in Figure 1b, which can absorb the decomposition by-products of electrolyte continuously and release active substances containing LiPO 2 F 2 and Ca 2+ , thus

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{CO}_{3}^{- 2}

{PO}_{4}^{- 3}

, CO, and CO, respectively.…”

Section: Resultsmentioning

confidence: 99%

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃

Peng

Liu

Jiang

et al. 2022

Advanced Energy Materials

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“…The P− N bond derived from TPPO can highly enhance the thermal stability of interface, resulting in a temperature-resistant CEI with high ionic conductivity. 47 There is anobvious N 1s peak in the XPS spectrum using TPPO electrolyte, as shown in Figure 5b and Figure S15. This peak is possibly due to decomposition of TPPO on the surface of the cathode.…”

mentioning

confidence: 72%

“…As shown in Figure a, TPPO has the highest energy level of HOMO among components in the electrolyte, meaning TPPO has a higher proneness to being oxidized during the CEI formation. The P–N bond derived from TPPO can highly enhance the thermal stability of interface, resulting in a temperature-resistant CEI with high ionic conductivity . There is anobvious N 1s peak in the XPS spectrum using TPPO electrolyte, as shown in Figure b and Figure S15.…”

mentioning

confidence: 96%

High-Performance Lithium Metal Batteries with a Wide Operating Temperature Range in Carbonate Electrolyte by Manipulating Interfacial Chemistry

et al. 2021

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Development of high-performance lithium metal batteries with a wide operating temperature range is highly challenging, especially in carbonate electrolyte. Herein, a multifunctional high-donor-number solvent, tris-(pyrrolidinophosphine) oxide (TPPO), is introduced into carbonate electrolyte to regulate both electrode−electrolyte interfaces. On the one hand, lithium nitrate can be easily dissolved in carbonate electrolyte because of the strong interaction between TPPO and Li + , resulting in the formation of a robust and ionic conductive Li 3 N-rich solid electrolyte interphase, which efficiently inhibits the formation of lithium dendrites. On the other hand, TPPO can be preferentially oxidized into an ultrathin and robust cathode electrolyte interphase, significantly suppressing electrolyte decomposition. As a result, the TPPO-containing electrolyte enables stable lithium stripping/plating cycling performance (1000 h at 3 mA cm −2 and 3 mAh cm −2 ). Furthermore, Li/LiFePO 4 cells exhibit stable cycling performance even at temperatures as high as 70 °C and as low as −15 °C, demonstrating their potential in temperature tolerance.

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“…Besides, although the SEI layers induced by traditional carbonateand ether-based electrolytes play a certain role in protecting Li anode, their loose morphology and nonuniform distribution fail to suppress the dendrite growth, resulting in inferior lifespan and safety [30,31]. On the other hand, the CEI layers generated in traditional electrolytes are mainly unstable organic carbides and hence fail to inhibit the continuous electrolyte oxidation and the dissolution of transition metal at an extreme potential [32,33]. Therefore, developing stable electrolytes is vital for further promotions and applications of the HVLMBs.…”

Section: Introductionmentioning

confidence: 99%

Electrolyte Engineering for High-Voltage Lithium Metal Batteries

et al. 2022

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High-voltage lithium metal batteries (HVLMBs) have been arguably regarded as the most prospective solution to ultrahigh-density energy storage devices beyond the reach of current technologies. Electrolyte, the only component inside the HVLMBs in contact with both aggressive cathode and Li anode, is expected to maintain stable electrode/electrolyte interfaces (EEIs) and facilitate reversible Li+ transference. Unfortunately, traditional electrolytes with narrow electrochemical windows fail to compromise the catalysis of high-voltage cathodes and infamous reactivity of the Li metal anode, which serves as a major contributor to detrimental electrochemical performance fading and thus impedes their practical applications. Developing stable electrolytes is vital for the further development of HVLMBs. However, optimization principles, design strategies, and future perspectives for the electrolytes of the HVLMBs have not been summarized in detail. This review first gives a systematical overview of recent progress in the improvement of traditional electrolytes and the design of novel electrolytes for the HVLMBs. Different strategies of conventional electrolyte modification, including high concentration electrolytes and CEI and SEI formation with additives, are covered. Novel electrolytes including fluorinated, ionic-liquid, sulfone, nitrile, and solid-state electrolytes are also outlined. In addition, theoretical studies and advanced characterization methods based on the electrolytes of the HVLMBs are probed to study the internal mechanism for ultrahigh stability at an extreme potential. It also foresees future research directions and perspectives for further development of electrolytes in the HVLMBs.

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Cooperative stabilization of bi-electrodes with robust interphases for high-voltage lithium-metal batteries

Cited by 59 publications

References 33 publications

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃

High-Performance Lithium Metal Batteries with a Wide Operating Temperature Range in Carbonate Electrolyte by Manipulating Interfacial Chemistry

Electrolyte Engineering for High-Voltage Lithium Metal Batteries

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Cooperative stabilization of bi-electrodes with robust interphases for high-voltage lithium-metal batteries

Cited by 59 publications

References 33 publications

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO3

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO3

High-Performance Lithium Metal Batteries with a Wide Operating Temperature Range in Carbonate Electrolyte by Manipulating Interfacial Chemistry

Electrolyte Engineering for High-Voltage Lithium Metal Batteries

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Product

Resources

About

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃

Optimized Cycle and Safety Performance of Lithium–Metal Batteries with the Sustained‐Release Effect of Nano CaCO₃