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Chinese Chemical Letters 2023年第5期34卷 525-529页

作者： Shuai Chen Chuang Yu chaochao wei Linfeng Peng Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Materials Huazhong University of Science and TechnologyWuhan 430074China

Halide electrolytes in solid-state batteries with excellent oxidative stability and high ionic conductivity have been well reported ***,the high-cost rare-earth elements and long duration of highrotation milling procure are the major ***,we have successfully synthesized the low cost Li_(2.25)Zr_(0.75)Fe_(0.25)Cl_(6)electrolyte consisting of abundant elements with comparable Li-ion conductivity in a short milling duration of 4 *** transition of the annealed sample was also carefully *** Ni_(0.6)Co_(0.2)Mn_(0.2)O_(2)/Li_(2.25)Zr_(0.75)Fe_(0.25)Cl_(6)/Li_(5.5)PS_(4.5)Cl_(1.5)/In-Li batteries using different halide electrolytes were constructed and cycled at different voltage ***-state battery using Li_(2.25)Zr_(0.75)Fe_(0.25)Cl_(6)electrolyte obtained from long milling duration delivers higher discharge capacities and superior capacity retention than shorter milling time between 3.0 and 4.3 *** delivers much higher discharge capacity when cycled at elevated temperature(60℃)and suffers fast capacity degradation when the upper cut-off voltage increases to 4.5 V at the same current *** work provides an efficiency synthesis strategy for halide solid electrolyte and studies its applications in all-solid-state batteries in a wide temperature range.

关键词： Solid inorganic electrolyte Solid state battery Halide electrolyte High temperature Synthesis process

Revealing performance of 78Li_(2)S-22P_(2)S_(5) glass ceramic based solid-state batteries at different operating temperatures

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Chinese Chemical Letters 2023年第7期34卷 418-422页

作者： chaochao wei Xinrong Liu Chuang Yu Shaoqing Chen Shuai Chen Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China

78Li_(2)S-22P_(2)S_(5) are sulfide electrolytes with high lithium-ion conductivity and wide electrochemical windows in the Li_(2)S-P_(2)S_(5) system,making them attractive solid electrolytes for ***,the role and potential of 78Li_(2)S-22P_(2)S_(5) solid electrolytes over a wide temperature range are still not fully ***,we constructed solid-state batteries with NCM622 as the positive electrode and 78Li_(2)S-22P_(2)S_(5) glass-ceramics as the electrolyte to investigate in depth the differences in battery performance over a wide temperature range and their intrinsic *** in-situ impedance and relaxation time distribution (DRT) demonstrated the electrochemical stability of the electrolyte over a wide temperature range,while the in-situ stacking pressure observed a large volume change during cycling at 60℃,leading to local solid-solid contact failure and poor cycling *** study provides insight into the advantages and problems of 78Li_(2)S-22P_(2)S_(5) in the wide temperature range as well as a basis for the construction of ASSLBs with high energy density and long cycle life.

关键词： 78Li_(2)S-22P_(2)S_(5)electrolytes Li-ion conductivity Operating temperature Battery performance Volume changes Interfacial resistance

Unraveling Electrochemical Stability and Reversible Redox of Y-Doped Li_(2)ZrCl_(6) Solid Electrolytes

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Energy Material Advances 2023年第1期4卷 120-129页

作者： Shuai Chen Chuang Yu chaochao wei Ziling Jiang Ziqi Zhang Linfeng Peng Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074P.R.China School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan 430074P.R.China

Lithium halide electrolytes show great potential in constructing high-energy-density solid-state batteries with high-voltage cathode materials due to their high electrochemical stability and wide voltage ***,the high cost and low conductivity of some compositions inhibit their ***,the effect of electronic additives in the cathode mixture on the stability and capacity is ***,the Y3+doping strategy is applied to enhance the conductivity of low-cost Li_(2)ZrCl_(6)*** tailoring the Y^(3+)dopant in the structure,the optimal Li_(2.5)Zr_(0.5)Y_(0.5)Cl_(6)with high conductivity up to 1.19×10^(−3) S cm^(−1) is ***_(2.5)Zr_(0.5)Y_(0.5)Cl_(6)@CNT/Li_(2.5)Zr_(0.5)Y_(0.5)Cl_(6)/Li_(5.5)PS_(4.5)Cl_(1.5)/In-Li solid-state batteries with different carbon nanotube(CNT)contents in the cathode are *** stability and electrochemical performances of the cathode mixture as a function of CNT content are *** cathode mixture containing 2%(wt.)CNT exhibits the highest stability and almost no discharge capacity,while the cathode mixture consisting of Li_(2.5)Zr_(0.5)Y_(0.5)Cl_(6)and 10%(wt.)CNT delivers a high initial discharge capacity of 199.0 mAh g^(−1)and reversible capacities in the following 100 *** characterizations are combined to unravel the working mechanism and confirm that the electrochemical reaction involves the 2-step reaction of Y^(3+)/Zr^(0),Zr^(4+)/Zr^(0),and Cl^(−)/Cl_(x)^(−)in the Li_(2.5)Zr_(0.5)Y_(0.5)Cl_(6)*** work provides insight into designing a lithium halide electrolyte-based cathode mixture with a high ionic/electronic conductive framework and good interfacial stability for solid-state batteries.

关键词： conductivity electrolyte stability

Revealing the size effect of Fe S2on solid-state battery performances at different operating temperatures

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Chinese Chemical Letters 2024年第6期35卷 189-194页

作者： chaochao wei Ru Wang Zhongkai Wu Qiyue Luo Ziling Jiang Liang Ming Jie Yang Liping Wang Chuang Yu School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China

FeS_(2) shows significant potential as cathode material for all-solid-state lithium batteries(ASSLBs)due to its high theoretical specific capacity,low cost,and environmental ***,the poor ion/electron conductivity and large volume variation effect of FeS_(2) inhibit its practical ***,the influence of particle size of FeS_(2) on the corresponding sulfide-based solid-state batteries is carefully investigated by tuning FeS_(2) ***,low operating temperature is chosen to mitigate the large volume changes during cycling in the battery.S-FeS_(2) with smaller particle sizes delivers superior electrochemical performances than that of the larger L-FeS_(2) in Li_(5.5)PS_(4.5)Cl_(1.5)-based ASSLBs under different operating temperatures.S-FeS_(2) shows stable discharge capacities during 50 cycles with a current density of 0.1 m A/cm^(2)under -20℃.When the current density rises to 1.0 m A/cm^(2),it delivers an initial discharge capacity of 146.9 m Ah/g and maintains 63% of the capacity after 100 *** work contributes to constructing ASSLBs enables excellent electrochemical performances under extreme operating temperatures.

关键词： FeS_(2) Size effect Li_(5.5)PS_(4.5)Cl_(1.5) electrolytes Operating temperatures Electrochemical performances

Enabling superior electrochemical performance of NCA cathode in Li_(5.5)PS_(4.5)Cl_(1.5)-based solid-state batteries with a dual-electrolyte layer

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Chinese Chemical Letters 2024年第4期35卷 231-236页

作者： Ziling Jiang Shaoqing Chen chaochao wei Ziqi Zhang Zhongkai Wu Qiyue Luo Liang Ming Long Zhang Chuang Yu School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China Innovation Center for Chemical Sciences College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China College of Physics and Energy Fujian Normal UniversityFuzhou 350117 China

LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)(NCA) is a promising cathode for sulfide-based solid-state lithium batteries(ASSLBs)profiting from its high specific capacity and voltage plateau, which yielding high energy density. However, the inferior interfacial stability between the bare NCA and sulfides limits its electrochemical performance. Hereien, the dual-electrolyte layer is proposed to mitigate this effect and enhance the battery performances of NCA-based ASSLIBs. The Li_(3)InCl_6 wih high conductivity and excellent electrochemcial stability act both as an ion additives to promote Li-ion diffusion across the interface in the cathode and as a buffer layer between the cathode layer and the solid electrolyte layer to avoid side reactions and improve the interface stability. The corresponding battery exhibits high discharge capacities and superior cyclabilities at both room and elevated temperatures. It exhibits discharge performance of 237.04 and216.07 m Ah/g at 0.1 and 0.5 C, respectively, when cycled at 60 ℃, and sustains 95.9% of the capacity after100 cycles at 0.5 C. The work demonstrates a simple strategy to ensure the superior performances of NCA in sulfide-based ASSLBs.

关键词： LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2) Li_(5.5)PS_(4.5)Cl_(1.5) Double solid electrolyte layer configuration Operating temperatures Electrochemical performances

Enabling ultrafast lithium-ion conductivity of Li_(2)ZrCl_(6) by indium doping

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Chinese Chemical Letters 2022年第10期33卷 4635-4639页

作者： Shuai Chena Chuang Yu Shaoqing Chen Linfeng Peng Cong Liao chaochao wei Zhongkai Wu Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China

Solid-state batteries with high energy density and safety are promising next-generation battery ***,lithium oxide and lithium sulfide electrolytes suffer low ionic conductivity and poor electrochemical stability,*** halide solid electrolyte shows high conductivity and good compatibility with the pristine high-voltage cathode but limited applications due to the high price of rare ***-based lithium halides with low cost and high stability possess great ***,a small amount of In^(3+)is introduced in Li_(2)ZrCl_(6) to synthesize Li_(2.25)Zr_(0.75)In_(0.25)Cl_(6) electrolytes with a high room temperature Li-ion conductivity of 1.08 mS/***-state batteries using Li_(2.25)Zr_(0.75)In_(0.25)Cl_(6)/Li_(5.5)PS_(4.5)Cl_(1.5) bilayer solid electrolytes combined with Li-In anode and pristine LiNi_(0.7)Mn_(0.2)Co_(0.1)O_(2) cathode deliver high initial discharge capacities under different cut-off *** work provides an effective strategy for enhancing the conductivity of Li2ZrCl6 electrolytes,promoting their applications in solid-state batteries.

关键词： Solid electrolyte Li_(2)ZrCl_(6) Li-ion conductivity In-doping Solid-state battery

Construction of LiCl/LiF/LiZn hybrid SEI interface achieving high-performance sulfide-based all-solid-state lithium metal batteries

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Science China Chemistry 2024年第6期67卷 1990-2001页

作者： chaochao wei Yujie Xiao Zhongkai Wu Chen Liu Qiyue Luo Ziling Jiang Lin Li Liang Ming Jie Yang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan430074China

Sulfide-based all-solid-state lithium metal batteries(ASSLMBs)have received extensive attention due to their high energy density and high safety,while the poor interface stability between sulfide electrolyte and lithium metal anode limits their ***,a hybrid SEI(LICl/Li F/Li Zn)was constructed at the interface between Li_(5.5)PS_(4.5)Cl_(1.5)sulfide electrolyte and lithium *** Li Cl and Li F interface phases with high interface energy effectively induce the uniform deposition of Li^(+)and reduce the overpotential of Li^(+)deposition,while the Li Zn alloy interface phase accelerates the diffusion of lithium *** synergistic effect of the above functional interface phases inhibits the growth of lithium dendrites and stabilizes the interface between the sulfide electrolyte and lithium *** hybrid SEI strategy exhibits excellent electrochemical performance on symmetric batteries and all-solid-state *** symmetrical cell exhibits stable cycling performance over long duration over 500 h at 1.0 mA cm^(-2).Moreover,the LiNbO_(3)@NCM712/Li_(5.5)PS_(4.5)Cl_(1.5)/Li-10%Zn F_(2)battery exhibits excellent cycle stability at a high rate of 0.5 C,with a capacity retention rate of 76.4%after 350 cycles.

关键词： argyrodite electrolytes ASSLMBs electrochemical stability Li-ZnF_2 anode electrochemical performance

Si-doped Li_(6)PS_(5)I with enhanced conductivity enables superior performance for all-solid-state lithium batteries

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Chinese Chemical Letters 2024年第10期35卷 479-484页

作者： Liang Ming Dan Liu Qiyue Luo chaochao wei Chen Liu Ziling Jiang Zhongkai Wu Lin Li Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Scienceand TechnologyWuhan430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China State Grid Hubei Electric Power Research Institute Wuhan 430077China College of Physics and Energy Fujian Normal UniversityFuzhou 350117China

Lithium argyrodites Li_(6)PS_(5)X(X=Cl,Br,I)show great potential as solid electrolytes for solid-state lithium batteries due to their high Li-ion conductivities and excellent electrode ***,the relatively low conductivity of Li_(6)PS_(5)I(10^(-6)m S/cm)compared to the other two compositions limits its ***,Si-doped Li_(6.5)P_(0.5)Si_(0.5)S_(5)I electrolyte is designed and synthesized with superior high conductivity of 3.6 mS/*** characterization proves the increase due to the anion disorder and volume expansion caused by ***,the poor interfacial stability between layered oxide cathode Li Ni_(0.6)Co_(0.2)Mn_(0.2)O_(2)and Li_(6.5)P_(0.5)Si_(0.5)S_(5)I inhibits its battery *** introducing Li_(3)InCl6electrolyte in the configuration,the corresponding battery delivers high initial discharge capacity of 150.2m Ah/g and superior cyclability during 250 cycles at 0.5 *** work offers design strategy to obtain Li_(6)PS_(5)I-based electrolytes for high performance solid-state batteries.

关键词： Argyrodite electrolyte Li_(6.5)P_(0.5)Si_(0.5)S_(5)I All-solid-state lithiumbatteries Stability Electrochemical performance

Constructing Br-Doped Li_(10)SnP_(2)S_(12)-Based All-Solid-State Batteries with Superior Performances

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Energy Material Advances 2023年第1期4卷 500-511页

作者： Qiyue Luo Liang Ming Dong Zhang chaochao wei Zhongkai Wu Ziling Jiang Chen Liu Shiyu Liu Kecheng Cao Long Zhang Chuang Yu Shijie Cheng State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074P.R.China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074P.R.China School of Physical Science and Technology&Shanghai Key Laboratory of High-resolution Electron Microscopy Shanghai Tech UniversityShanghai 201210P.R.China Wuhan National High Magnetic Field Center Huazhong University of Science and TechnologyWuhan 430074P.R.China College of Physics and Energy Fujian Normal UniversityFuzhou 350117P.R.China

Ionic conductivity and electro/chemical compatibility of Li_(10)SnP_(2)S_(12) electrolytes play crucial roles in achieving superior electrochemical performances of the corresponding solid-state ***,the relatively low Li-ion conductivity and poor stability of Li_(10)SnP_(2)S_(12) toward high-voltage layered oxide cathodes limit its ***,a Br-substituted strategy has been applied to promote Li-ion *** optimal composition of Li_(9.9)SnP_(2)S_(11.9)Br_(0.1) delivers high conductivity up to 6.0 mS cm^(−1).7Li static spin-lattice relaxation(T1)nuclear magnetic resonance(NMR)and density functional theory simulation are combined to unravel the improvement of Li-ion diffusion mechanism for the modified *** mitigate the interfacial stability between the Li_(9.9)SnP_(2)S_(11.9)Br_(0.1) electrolyte and the bare LiNi_(0.7)Co_(0.1)Mn_(0.2)O_(2) cathode,introducing Li_(2)ZrO_(3) coating layer and Li_(3)InCl_(6) isolating layer strategies has been employed to fabricate all-solid-state lithium batteries with excellent electrochemical *** Li_(3)InCl_(6)-LiNi_(0.7)Co_(0.1)Mn_(0.2)O_(2)/Li_(3)InCl_(6)/Li_(9.9)SnP_(2)S_(11.9)Br_(0.1)/Li-In battery delivers much higher discharge capacities and fast capacity degradations at different charge/discharge C rates,while the Li_(2)ZrO_(3)@LiNi_(0.7)Co_(0.1)Mn_(0.2)O_(2)/Li_(9.9)SnP_(2)S_(11.9)Br_(0.1)/Li-In battery shows slightly lower discharge capacities at the same C rates and superior cycling *** characterization methods are conducted to reveal the differences of battery *** poor electrochemical performance of the latter battery configuration is associated with the interfacial instability between the Li_(3)InCl_(6) electrolyte and the Li_(9.9)SnP_(2)S_(11.9)Br_(0.1) *** work offers an effective strategy to constructing Li_(10)SnP_(2)S_(12)-based all-solid-state lithium batteries with high capacities and superior cyclabilities.

关键词： battery electrolyte conductivity

Enhancing solid-state lithium metal battery performance via indium-based modification of electrolytes and lithium metal surfaces: mechanistic insights and optimization

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Science China Chemistry 2024年

作者： Zhongkai Wu Chen Liu Ziling Jiang Lin Li Siwu Li chaochao wei Qiyue Luo Xia Chen Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and Technology School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Interdisciplinary Research Center of Smart Sensors Academy of Advanced Interdisciplinary Research Xidian University College of Physics and Energy Fujian Normal University

Argyrodite-based solid-state lithium metal batteries exhibit significant potential as next-generation energy storage ***,their practical applications are constrained by the intrinsic poor stability of argyrodite towards Li metal and exposure to air/***,an indium-involved modification strategy is employed to address these *** optimized doping yields a high Li-ion conductivity of 7.5 mS cm-1for Li5.54In0.02PS4.47O0.03Cl1.5electrolyte,accompanied by enhanced endurance against air/moisture and bare Li *** retains 92.0%of its original conductivity after exposure to air at a low dew point of-60°C in dry ***,a composite layer comprising Li–In alloy and LiF phases is generated on the surface of lithium metal anode via the reaction between In F3and molten *** layer effectively mitigates Li dendrite growth by creating a physical barrier from the robust LiF phase,while the Li–In alloy induces uniform Li-ion deposition and accelerates Li transport dynamics across the interphase between the solid electrolyte/Li ***,the In-doped electrolyte facilitates the in-situ generation of Li–In alloy within its voids,reducing local current density and further inhibiting lithium dendrite ***,the combination of the Li5.54In0.02PS4.47O0.03Cl1.5electrolyte and the InF3@Li anode provides exceptional electrochemical performances in both symmetric cells and solid-state lithium metal batteries across different operating ***,the LiNbO3@LiNi0.7Co0.2Mn0.1O2/Li5.54In0.02PS4.47O0.03Cl1.5/InF3@Li cell delivers a high discharge capacity of 167.8 mAh g-1at 0.5 C under 25°C and retains 80.0%of its initial value after 400 *** work offers a viable strategy for designing functional interfaces with enhanced stability for sulfide-based solid-state lithium batteries.

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