PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
·
2025
·Vol. 122
·期 3
·e2416817122
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IF 9.1
Zhengqiang Hu,Fengling Zhang,Feng Wu,Li Li,Renjie Chen
Lithium-ion batteries (LIBs) have become advanced energy storage technologies; however, specific capacity remains limited by the active materials in cathodes. Here, we report Li–LiNO3 batteries (LNBs) where LiNO3 in electrolyte serves as both active materials and ion conductor at room temperature. LNBs operate on a highly reversible redox between NO3− and NO2−, which results in an impressive areal capacity of 19 mAh cm−2 at a plateau voltage of 1.75 V. Furthermore, the pouch cell exhibits stable cycling at a capacity of 100 mAh. This research underscores the potential of LNBs for high-capacity energy storage.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Jianbo Jiang,Beibei Liu,Guiyu Liu,Dong Qian,Chunming Yang,Junhua Li
In this work, highly soluble LiNO 3 was adopted as the neutrally aqueous electrolyte for active carbon (AC)-based electrochemical double-layer capacitors (EDLCs), of which the electrochemical performances were evaluated. Simultaneously, the physicochemical properties such as the ionic conductivity and viscosity of the LiNO 3 aqueous solution were investigated. As compared with the most studied Li 2 SO 4 aqueous solution, the LiNO 3 aqueous solution displays more favorable physicochemical properties and electrochemical performances as the neutral electrolytes for EDLCs. To be specific, the conductivity of the 5.0 M LiNO 3 aqueous solution can reach up to 154.8 mS cm −1 at 25 °C, which is nearly two times of the maximum conductivity of 77.6 mS cm −1 for the 2.0 M Li 2 SO 4 aqueous solution under the identical testing conditions. Even at a concentration as high as 9.0 M, the absolute viscosity of the LiNO 3 aqueous solution is only 2.4, while that of the Li 2 SO 4 aqueous solution achieves 3.0 at the maximum concentration of 2.5 M. Additionally, 5.0 M LiNO 3 aqueous solution exhibits a wide electrochemical potential stability window from −0.9 to 0.9 V (vs. SCE) at the AC electrode, giving rise to an operating cell voltage of 1.8 V, which is comparable to that of 2.0 M Li 2 SO 4 aqueous solution. Further, with the 5.0 M LiNO 3 aqueous solution as the electrolyte, the as-fabricated EDLC delivers an energy density up to 21.16 Wh Kg −1 at a power density of 100.09 W kg −1 , which is higher than 18.43 Wh Kg −1 for the EDLC with the 2.0 M Li 2 SO 4 aqueous electrolyte at the identical power density. Even though the power density reaches as high as 5970 W kg −1 , the energy density of the EDLC with the 5.0 M LiNO 3 aqueous electrolyte can still remain at 13.1 Wh Kg −1 , substantially higher than 8.71 Wh Kg −1 of the EDLC with the 2.0 M Li 2 SO 4 aqueous electrolyte at the same power density. Moreover, the EDLC with the 5.0 M LiNO 3 aqueous electrolyte also holds good cyclic stability. After 10000 charge–discharge cycles at a current density of 1 A g −1 and a cut-off voltage of 1.8 V, the capacity retention of this EDLC retains more than 90%. These results can render an insight to explore safe, eco-friendly, inexpensive and neutrally aqueous electrolytes for supercapacitors .
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2016
·
IF 6.198
HeMing Luo,YanFei Yang,Bo Mu,YanZheng Chen,JianQiang Zhang,Xia Zhao
A facile method for the direct synthesis of interconnected microporous carbon via carbonization of potassium acid phthalate in inert atmosphere is reported. The as-obtained microporous carbon exhibited a high specific surface area (1118 m 2 g −1 ) and 67% of the pore volume was attributed to microporosity , which are ideal for electrodes of supercapacitors . LiNO 3 electrolytes of different concentrations were selected according to their corresponding conductivities to evaluate the use of aqueous electrolytes in supercapacitors . The electrochemical performance of the interconnected microporous carbon in 6 M KOH and 1–5 M LiNO 3 electrolytes was investigated. The results showed that the microporous carbon could deliver optimal electrochemical properties as an electrode material for supercapacitors. In addition, the electrochemical investigation showed that the microporous carbon exhibited a broad voltage operational window in 3 M LiNO 3 electrolyte. Furthermore, 86.2% of the capacitance was retained even after 5000 cycles at 1.6 V.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Xiaoyan Zhang,Mengmin Jia,Qipeng Zhang,Nana Zhang,Xiangkun Wu,Suitao Qi,Lan Zhang
The poor interfacial contact and notorious instability issues between solid electrolyte and electrodes seriously handicap the practical applications of solid-state lithium metal batteries (LMBs). In-situ polymerization is a considerable choice to upgrade the interfacial transport properties by directly curing the liquid precursor inside the cell. Herein, a ∼ 17 μm poly(ethylene glycol) methyl ether methacrylate (PEGMEA) based solid polymer electrolyte (SPE) is prepared by this method. Trimethyl phosphate (TMP) and LiNO 3 are introduced to promote the ion transport as well as enhance the electrodes/electrolyte interfacial stability. Interestingly, although LiNO 3 increases the electrolyte’s glass transition temperature thus hinders the anion transport, while higher Li + conductivity is obtained due to the weakened interaction between Li + and its ligands, ethylene oxide (EO) and TMP. The optimal electrolyte (PTLiN1) shows an acceptable ionic conductivity of 1.2 × 10 -4 S cm −1 at 55°C and lithium ion transference number ( t L i + ) of 0.46, which enables the Li||Li symmetric cells to run stability within 1500 h (0.2 mA cm −2 , 0.4 mAh cm −2 ) at 55°C and 1000 h (0.1 mA cm −2 , 0.2 mAh cm −2 ) at 25°C. Meanwhile, the LiFePO 4 ||Li cell with PTLiN1 shows superior long cycle lifetime with a high capacity retention of 88.4% over 300 cycles at 0.5 C. The cells coupled with LiCoO 2 can even work stably under room temperature in the voltage range of 3.0 ∼ 4.3 V. Pouch cells based on PTLiN1 are also prepared and show outstanding flexibility and high security, which provides new idea for the development of economical and convenient solid-state batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Yangyang Mao,Tianle Li,Siddig Abuelgasim,Xiaoqian Hao,Yupeng Xiao,Chongyang Li,Wenju Wang,Yuqian Li,Encai Bao
Previous studies revealed that LiNO 3 can enhance the cyclic stability of lithium‑sulfur (Li S) batteries by creating a solid electrolyte interface protecting the lithium electrode. However, this study investigated the effect of LiNO 3 and concentration in the electrolyte, first studied under low and high sulfur loading. It is confirmed that adding a small amount of LiNO 3 inhibits the shuttle effect phenomenon in Li S batteries, and the Coulombic efficiency was significantly improved. Appropriately increasing the concentration of LiNO 3 to 2 % could prolong the cycle life. However, when LiNO 3 is excessive, the rate and cycling performance decrease. The design of practical Li S batteries requires more research on the parameters of electrolyte additives under high‑sulfur-loading conditions. After gradient increasing the sulfur loading, the low concentration of LiNO 3 cannot play the best performance of the battery , so it is necessary to improve the concentration of LiNO 3 further. It is evident that adding LiNO 3 in Li S batteries has certain benefits, and the optimal amount of additive is related to the value of sulfur loading.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 16
·1-12
·
IF 2.8
Xia Enjie,Zhang Hong,Tang Zhiruo,Xu Yilin,Wu Yanmei,Li Zhicheng
Solid polymer electrolytes (SPEs) with high ionic conductivity and electrochemical stability are crucial for the potential practical applications of solid-state lithium metal batteries. In SPEs based on polyvinylidene fluoride (PVDF), the addition of N , N -dimethylformamide (DMF) enhances ionic conductivity but reduces the electrochemical stable window. This work proposes a strategy to improve the stability of PVDF-based SPEs with high ionic conductivities using LiNO 3 additive. By adding 5% of LiNO 3 (comparing to the weight of LiTFSI lithium salt), the ionic conductivity of prepared PVDF-based SPEs achieves up to 10 −4 S cm −1 at 30 ℃. The assembled Li|SPE|NCM811 cells with the LiNO 3 -modified SPE film as separator maintained a capacity retention rate of 93.0% after 200 electrochemistry cycles induced at a current density of 0.5 C. The influence of LiNO 3 in the interface resistance, Li-ionic transfer number, solid electrolyte interface phase, and electrochemistry performance of LIBs is investigated.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Minglin Sun,Xiaofei Wang,Jia Wang,Hao Yang,Lina Wang,Tianxi Liu
It is generally understood that the reduction of nitrate on the metallic Li surface aids in the formation of a solid–electrolyte interphase. LiNO3 is, therefore, frequently used as an electrolyte additive to help suppress the polysulfide redox shuttle in lithium–sulfur (Li–S) batteries. Although LiNO3 enables cycling of cells with considerably improved Coulombic efficiency and cyclic performance, the self-discharge behavior has largely been neglected. We present in this work a basic but systematic study to assess self-discharge of Li–S batteries with electrolytes possessing LiNO3. Comparative electrochemical tests and interfacial analysis reveal that the redox shuttle is fast enough to cause cells to self-discharge at a relatively rapid rate with limited concentration of the LiNO3 additive. Despite the capacity loss of a full-charged cell under rest for one day can be controlled to 2% with LiNO3 concentration as high as 0.5 M, the development of a practically viable Li–S technology looks like a daunting challenge. Further increasing LiNO3 would potentially cause more irreversible reduction of LiNO3 on the cathode during the first discharge. Therefore, a possible pathway for a long shelf life and low self-discharge is offered as well by the synergic protection of the separator and stabilization of the Li anode surface. The cell using a nanosized Al2O3-coated microporous membrane and a LiNO3-possessing electrolyte exhibits an extremely suppressed self-discharge, providing an alternative perspective for the practical use of Li–S batteries.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2022
·Vol. 18
·期 25
·2202349
·
IF 15.153
Huicong Yang,Qingyun Liu,Yaozu Wang,Zhuoting Ma,Pei Tang,Xiaoyin Zhang,Hui-Ming Cheng,Zhenhua Sun,Feng Li
Lithium metal is an ideal electrode material for future rechargeable batteries. However, dendrite formation and unstable solid electrolyte interphase film lead to safety concerns and poor Coulombic efficiency (CE). LiNO 3 significantly improves the performance of the lithium metal anode in ester electrolytes but its use is restricted by low solubility. To increase the content of LiNO 3 in the cell, a poly-(vinyl carbonate) organogel interlayer containing dissociated LiNO 3 (LNO-PVC) is placed between the cathode and anode. The dissociated LiNO 3 effectively increases the LiNO 3 -release rate and compensates for the LiNO 3 consumed in ester electrolytes during cycling. Via this interlayer, the performance of the lithium metal anode is significantly improved. The average CE of a Li-Cu cell reaches 98.6% at 0.5 mA cm −2 -1 h and 98.5% at 1 mA cm −2 -1 h for 300 cycles. Also, a Li||NCM811 pouch cell with LNO-PVC interlayer can also reach a 400 Wh kg −1 energy density with a cycling life of 65 cycles. This strategy sheds light on the effect of the state of this salt on its release/dissolution kinetics, which is determined by the interactions between the salt and host material.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2023
·
IF 2.6
Fangyan Xiang,Chunhuan Luo,Qingquan Su
As a novel working pair to replace CaCl2/H2O and LiNO3/H2O for open absorption heat pumps, LiNO3-DEG/H2O with a mass ratio of 1:4 was further researched on the basis of the overall assessment of the vapor pressure and crystallization temperature. The crystallization temperature, vapor pressure, density, viscosity, and specific heat capacity of the working pair were measured with mass fractions from 0.70 to 0.90. The vapor pressure, density, viscosity, and specific heat capacity were measured from 293.15 to 373.15 K. Regression equations for the experimental values were obtained by a least-squares method. The results showed that the vapor pressures of LiNO3-DEG/H2O with a mass fraction of 0.80 were very close to that of LiNO3/H2O with a mass fraction of 0.50, and the vapor pressures of LiNO3-DEG/H2O with a mass fraction of 0.85 were also very close to that of CaCl2/H2O with a mass fraction of 0.45. Crystallization temperatures of LiNO3-DEG/H2O with a mass fraction from 0.70 to 0.90 were lower than 243 K. Corrosion weight loss values of carbon steel, stainless steel, and copper in an atmosphere of air for LiNO3-DEG/H2O were 1.17 × 10–4, 0.35 × 10–4, and 0.33 × 10–4 g/(cm–2·m–1), respectively, which were much smaller than those for LiNO3/H2O and CaCl2/H2O.
研究领域:
化学工程
·
热力学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Chong Xu,Shuang Liu,Sai Che,Guang Ma,Gong Cheng,Dongyuan Zhang,Junjie Fu,Ye Wang,Jiahao Yang,Yuci Tian,Yongpeng Cui,Weihua Chen,Yongfeng Li
Incorporating lithium nitrate (LiNO3) as a film-forming additive into carbonate-based electrolytes presents a promising strategy to enhance the stability of high-energy-density Li||NCM811 batteries. However, the small size of Li+ and the high donor number (DN) of NO3– hinder the dissociation of LiNO3, and its limited solubility (<800 ppm) in carbonate-based electrolytes poses significant challenges for practical application. To address this issue, we propose a “Small-Sized Carrier” strategy that enhances the solubility of LiNO3 in carbonate solvents by modulating the intermolecular interactions within the solvent system. This approach employs vinylene carbonate (VC), a small molecule with moderate polarity, to enhance the dissolution of LiNO3 without compromising the compatibility of the electrolyte with the lithium metal anode. The introduction of the “Small-Sized Carrier” additive system simultaneously enhances the stability of the electrode–electrolyte interfaces and optimizes the solvation structure of the electrolyte. As a result, the electrolyte developed through this strategy demonstrates outstanding electrochemical performance, with Li||NCM811 batteries achieving a capacity retention of 83.8% after 600 cycles. This work provides an insightful approach to designing advanced electrolytes tailored to high-energy-density lithium metal batteries (LMBs).
研究领域:
电化学
·
储能材料
·
电池技术
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材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2021
·
IF 2.917
Ai-min LIU,Yu YAO,Meng-xia GUO,Yu-bao LIU,Zhong-ning SHI,Feng-guo LIU,Xian-wei HU,Wen-cai HE,Zhao-wen WANG
The density, conductivity, and viscosity of the 1,3-dimethyl-2-imidazolinone and lithium nitrate (DMI– LiNO 3 ) solvated ionic liquid were measured as a function of temperature. Additionally, the electrochemical mechanism and electrodeposition of neodymium from the DMI–LiNO 3 solvated ionic liquid were investigated. Cyclic voltammetry results indicate that the electrochemical reduction of Nd(III) is irreversible and proceeds via one-step with three-electron transfer, which is controlled by diffusion with a diffusion coefficient of 5.08×10 −8 cm 2 /s. Energy- dispersive X-ray spectrometry and X-ray photoelectron spectroscopy data confirm that the electrodeposit obtained after electrodeposition at −4 V (vs Ag) using the DMI–LiNO 3 –Nd(CF 3 SO 3 ) 3 solvated ionic liquid contains metallic neodymium.
研究领域:
电化学
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材料科学
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
Batteries & Supercaps
·
2023
·Vol. 6
·期 7
·e202300144
·
IF 5.7
Qiongjie Ke,Qingshuai Xu,Xuejun Lai,Minghui Li,Jianhui Li,Keyou Yan,Yongcai Qiu
Graphical Better solubility helps : DMF was used as solubilizer to address the dissolution obstacle of LiNO 3 in carbonate electrolyte. The as-formed inorganic-rich SEI possesses high ionic diffusivity, low chemical activity and high mechanical strength. The designed carbonate electrolyte exhibits enhancing cycling performance over 700 h. Carbonate electrolytes have been extensively used as commercial electrolytes in lithium-ion batteries (LIBs) because of its high oxidative stability. However, the organic-inorganic solid electrolyte interphase (SEI) formed on the lithium (Li) metal surface is too fragile to endure huge volume fluctuation during Li plating/stripping cycles in carbonate electrolytes. Herein, a chemically stable inorganic-rich SEI was constructed on Li metal anodes by dissolving 5.5 M LiNO 3 in N,N-dimethylformamide (DMF) into carbonate electrolytes as an additive. The Li + solvation structure coordinated with NO 3 − and DMF molecules favors the formation of Li x N y , LiN x O y , and LiF in the SEI film, which have been proved to increase the interfacial energy and improve the ionic diffusion as well as the mechanical strength of the SEI. Therefore, the designed carbonate electrolyte enhances the stable cycling of Li symmetric cells up to 700 h, with a high Coulombic efficiency (CE) of 99.0 % by Aurbach CE test. When paired with LiFePO 4 cathode, the coin cells achieve an outstanding average CE of 99.5 % and 86.5 % retention of initial capacity after 300 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）