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Innovative Solutions for High-Performance Silicon Anodes in lithium-Ion Batteries:Overcoming Challenges and Real-World Applications

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Nano-Micro Letters 2024年第9期16卷 341-384页

作者： Mustafa Khan Suxia Yan Mujahid Ali Faisal Mahmood Yang Zheng guochun li Junfeng liu Xiaohui Song Yong Wang Institute for Energy Research Jiangsu UniversityZhenjiang 212013JiangsuPeople’s Republic of China School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuPeople’s Republic of China School of Materials Science and Engineering Hefei University of TechnologyHefei 230009AnhuiPeople’s Republic of China

Silicon(Si)has emerged as a potent anode material for lithium-ion batteries(liBs),but faces challenges like low electrical conductivity and significant volume changes during lithiation/delithiation,leading to material pulverization and capacity degradation.Recent research on nanostructured Si aims to mitigate volume expansion and enhance electrochemical performance,yet still grapples with issues like pulverization,unstable solid electrolyte interface(SEI)growth,and interparticle resistance.This review delves into innovative strategies for optimizing Si anodes’electrochemical performance via structural engineering,focusing on the synthesis of Si/C composites,engineering multidimensional nanostructures,and applying non-carbonaceous coatings.Forming a stable SEI is vital to prevent electrolyte decomposition and enhance li^(+)transport,thereby stabilizing the Si anode interface and boosting cycling Coulombic efficiency.We also examine groundbreaking advancements such as self-healing polymers and advanced prelithiation methods to improve initial Coulombic efficiency and combat capacity loss.Our review uniquely provides a detailed examination of these strategies in real-world applications,moving beyond theoretical discussions.It offers a critical analysis of these approaches in terms of performance enhancement,scalability,and commercial feasibility.In conclusion,this review presents a comprehensive view and a forward-looking perspective on designing robust,high-performance Si-based anodes the next generation of liBs.

关键词： Silicon anode Energy storage Nanostructure Prelithiation Binder

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From longan peel waste to energy storage: Porous activated carbon as a cathode matrix for advanced li/Na-selenium batteries

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Progress in Natural Science:Materials International 2024年第2期34卷 329-337页

作者： Mustafa Khan Suxia Yan Mujahid Ali Faisal Mahmood Yang Zheng Xiaohui Song guochun li Junfeng liu Yong Wang Institute for Energy Research Jiangsu University School of Energy and Power Engineering Jiangsu University School of Materials Science and Engineering Hefei University of Technology

This paper explores the potential of Longan peel waste（LPw） as a sustainable and cost-effective matrix for selenium-based cathodes in li-Se and Na-Se batteries.Following activation,we created LP2—a designation for the carbon precursor derived from LPw,activated at a 1:2 ratio of carbonized LPw to KOH.This nomenclature,where'LP' stands for 'Longan peel' and '2' reflects the optimization of this ratio,led to a hierarchical porous structure with an average pore size of 3.0307 nm and a significant BET surface area of 111.9386 m2g-1Selenium was incorporated into the LP2matrix using a simple melt diffusion technique,yielding the composite Se@LP2.In li-Se batteries,Se@LP2exhibited an initial discharge capacity of 1033.75 mAh g-1at 0.1C.At a 1C rate,the composite demonstrated a capacity retention of 301.14 mAh g-1after 550 cycles and 380.91 mAh g-1after 100 cycles.Moreover,for Na-Se batteries,the composite showcased a capacity retention of 347.18 mAh g-1after 100 cycles at0.1C.These findings underscore LP2's potential as a viable and efficient matrix for selenium-based cathodes,revealing promising prospects for the advancement of highly efficient li-Se and Na-Se batteries.

关键词： Hierarchical porous structure li/Na-Se batteries Longan peel waste Melt diffusion technique Selenium-based cathode

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Identification of novel biomarkers and therapeutic target candidates for stasis-heat symptom pattern of acute intracerebral hemorrhage by quantitative plasma proteomics

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Journal of Traditional Chinese Medicine 2022年第4期42卷 622-632页

作者： WEI Lexin li Weiyi TIAN Ting ZHANG Ning YANG Shijing YANG Dongqing li guochun YE Fang Department of Public Health School of Medicine and Holistic Integrative MedicineNanjing University of Chinese MedicineNanjing 210023China Emergency Department Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese MedicineNanjing 210001China the Key Laboratory Department of Stasis-heat Pathogenesis of Traditional Chinese Medicine the First Clinical Medical CollegeNanjing University of Chinese MedicineNanjing 210001China

OBJECTIVE:To explore the novel biomarkers and therapeutic target candidates related to the stasis-heat syndrome of acute intracerebral hemorrhage(AICH).METHODS:Applying an isobaric tagging for relative and absolute quantitation-(i TRAQ-)based quantitative proteomic approach,plasma samples from AICH patients with stasis-heat,and AICH patients with non-stasis-heat and healthy control subjects were collected and analyzed to distinguish differentially expressed proteins(DEPs)correlated to AICH with stasis-heat in this block design.The standard Western blot was applied to verify DEPs.Additionally,DEPs were analyzed via bioinformatic platforms and further approved via Ingenuity Pathway Analysis(IPA).RESULTS:A total of 26 DEPs were found among AICH with the stasis-heat,AICH with non-stasis-heat,and healthy control group.The seven DEPs compared with the non-stasis-heat group are closely related to the pathogenesis of stasis heat.These proteins showed three different protein expression patterns.The alpha-1-b glycoprotein(A1 BG)and copper-protein(CP)were upregulated in the stasis-heat group,but down-regulated in the non-stasis-heat group.Compared with the non-stasisheat group,the expression abundance of actinin,alpha 1(ACTN1),carbonic anhydrase I(CA1),peroxiredoxin 2(PRDX2),and vinculin(VCL)is higher in the stasis-heat group,while the CD44 is the opposite.These differences reflect that stasis-heat syndrome has more severe inflammatory immune response,coagulation disorders and damage.Bioinformatics analysis revealed that a wide variety of cellular and metabolic processes and some signaling pathways were involved in the pathophysiology of AICH with stasis-heat.AICH with stasis-heat syndrome showed more severe inflammatory reactions,tissue damage,and coagulation disorders than non-stasis heat syndrome.CONCLUSIONS:There are differences in the protein expression patterns between the stasis-heat syndrome and non-stasis-heat syndrome.These differences reflect that stasis-heat syndrome has more severe damage.CD44,CP,ACTN1,CA1,VCL,

关键词： cerebral hemorrhage stasis-heat syndrome biomarkers therapeutic target quantitative plasma proteomics

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低压直流配电网强弱电弧特征及检测算法

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中国电力 2024年第2期57卷 94-102页

作者：刘国强李国春郝亚楠李贵海吴中杰国网山东省电力公司电力科学研究院山东济南250003

直流电弧没有过零点特性,难以自行熄灭,易引发电气火灾,威胁直流配用电安全。通过搭建电弧模拟发生实验平台,采集不同电压下电弧信号,研究电弧电阻、电压等特性,分析了不同电压下电弧特征的差异性。以GB/T 35727—2017中低压直流配网标... 详细信息

直流电弧没有过零点特性,难以自行熄灭,易引发电气火灾,威胁直流配用电安全。通过搭建电弧模拟发生实验平台,采集不同电压下电弧信号,研究电弧电阻、电压等特性,分析了不同电压下电弧特征的差异性。以GB/T 35727—2017中低压直流配网标称电压优选值为依据,研究220 V、750 V、1 500 V3种不同电压等级电弧检测特征,对比傅里叶、小波、奇异值分解等频域特性,最大值、最小值、平均值、标准差等时域特性,得到不同电压等级下电弧检测的优质判据,证明了不同时频域特征适用于不同的电压等级。结合神经网络模型,设计了适用于750 V系统的电弧检测算法,算法检测精度为99.12%。

关键词：直流配电网电弧小波包奇异值时频域特性

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盐酸溴己新注射剂配伍稳定性考察

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医药导报 2024年第5期43卷 796-801页

作者：赵怀碧李秋月赵月许红李国春西南医科大学附属中医医院静脉用药调配中心泸州646000

目的考察注射用盐酸溴己新、盐酸溴己新注射液与不同溶媒配伍后的成品输液稳定性。方法将注射用盐酸溴己新、盐酸溴己新注射液分别与5%葡萄糖注射液(5%GS)、10%葡萄糖注射液(10%GS)、0.9%氯化钠注射液(NS)及葡萄糖氯化钠注射液(GNS)配... 详细信息

目的考察注射用盐酸溴己新、盐酸溴己新注射液与不同溶媒配伍后的成品输液稳定性。方法将注射用盐酸溴己新、盐酸溴己新注射液分别与5%葡萄糖注射液(5%GS)、10%葡萄糖注射液(10%GS)、0.9%氯化钠注射液(NS)及葡萄糖氯化钠注射液(GNS)配伍,考察各成品输液于室温下放置24 h的外观、不溶性微粒、pH值、渗透压、盐酸溴己新含量及有关物质。结果注射用盐酸溴己新分别与5%GS 50 mL、5%GS 100 mL、5%GS 250 mL及NS 250 mL配伍;盐酸溴己新注射液分别与5%GS 50 mL、5%GS 100 mL、5%GS 250 mL、NS 100 mL、NS 250 mL及GNS 100 mL配伍后,各成品输液外观、不溶性微粒、pH值、渗透压、盐酸溴己新含量及有关物质在24 h内相对稳定。注射用盐酸溴己新与10%GS 100 mL、GNS 100 mL及NS 100 mL配伍0 h后不溶性微粒数目不符合要求,与NS 100 mL和GNS 100 mL配伍2 h后百分含量分别下降至71.81%和72.32%;盐酸溴己新注射液与10%GS 100 mL配伍在6 h内百分含量下降至94.54%。结论注射用盐酸溴己新与NS配伍时,成品输液稳定性可能与配伍剂量有关,其适宜配伍剂量为0.016 mg·mL^(-1)。加强盐酸溴己新注射剂各成品输液配伍稳定性研究,有利于盐酸溴己新及其他静脉输液的临床合理用药。

关键词：盐酸溴己新稳定性成品输液含量测定有关物质

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血清TSH和FT3及PCT在新生儿感染性疾病中的表达水平及诊断意义

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热带医学杂志 2024年第5期24卷 726-729,734,F0003页

作者：黎国春罗妮娜宜昌市夷陵区人民医院新生儿科湖北宜昌443100

目的探究感染性疾病患儿血清促甲状腺激素(TSH)、游离总三碘甲状腺素原氨酸(FT3)、降钙素原(PCT)在新生儿感染性疾病的表达情况,分析其诊断意义。方法选取2019年3月-2022年3月在宜昌市夷陵区人民医院新生儿科就诊的100例发热新生儿作为... 详细信息

目的探究感染性疾病患儿血清促甲状腺激素(TSH)、游离总三碘甲状腺素原氨酸(FT3)、降钙素原(PCT)在新生儿感染性疾病的表达情况,分析其诊断意义。方法选取2019年3月-2022年3月在宜昌市夷陵区人民医院新生儿科就诊的100例发热新生儿作为研究组,按照感染类型分为细菌感染组(46例)和病毒感染组(54例),根据新生儿危重症评分标准分为非危重组(38例)、危重组(28例)及极危重组(34例)。另选取经检查无异常的健康新生儿50名作为对照组。分别检测研究组和对照组新生儿血清TSH、FT3和PCT的表达水平,对比分析各指标差异。Logistic回归分析新生儿感染性疾病影响因素;采用受试者工作特征(ROC)曲线分析上述指标对新生儿感染性疾病的诊断效能。结果细菌感染组患儿血清TSH和PCT水平高于病毒感染组,差异均有统计学意义(t=7.626、9.866,P均<0.05),血清FT3水平低于病毒感染组,差异有统计学意义(t=10.654,P<0.05)。随患儿病情加重,血清TSH和PCT表达水平上升(F=31.449、69.274),FT3水平降低(F=60.396),对照组、非危重组、危重组和极危重组4组之间比较,差异均有统计学意义(P均<0.05)。TSH、FT3、PCT以及三者联合诊断新生儿感染性疾病的曲线下面积(AUC)分别为0.875、0.867、0.911、0.966,三者联合诊断AUC均高于各指标独立诊断(Z=3.137、3.579、2.749,P=0.002、<0.001、0.006),三者联合诊断灵敏度为90.00%,特异度92.00%。结论TSH、FT3和PCT联合诊断新生儿感染性疾病具有较高价值,对判断感染的病原菌以及患儿病情严重程度具有参考价值。

关键词：新生儿感染性疾病促甲状腺激素游离总三碘甲状腺素原氨酸降钙素原

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GDM孕妇血清甲状腺激素、25-羟维生素D水平与新生儿低血糖关系

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中国计划生育学杂志 2024年第2期32卷 455-459页

作者：黎国春周春兰湖北省宜昌市夷陵人民医院 443100

目的:探讨妊娠期糖尿病(GDM)孕妇血清甲状腺激素、25-羟基维生素D[25-(OH)D]水平与新生儿低血糖的相关性。方法:选择2021年9月-2022年6月在本院分娩的305例GDM产妇临床资料,根据新生儿是否发生低血糖分为低血糖组58例与血糖正常组247例... 详细信息

目的:探讨妊娠期糖尿病(GDM)孕妇血清甲状腺激素、25-羟基维生素D[25-(OH)D]水平与新生儿低血糖的相关性。方法:选择2021年9月-2022年6月在本院分娩的305例GDM产妇临床资料,根据新生儿是否发生低血糖分为低血糖组58例与血糖正常组247例,检测血清游离三碘甲腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)、25-(OH)D水平,采用pearson法分析血清FT3、FT4、25-(OH)D水平与血糖指标相关性,logistic回归模型分析影响新生儿发生低血糖的影响因素。结果:血糖正常组与低血糖组年龄、孕前体质指数、确诊时孕周、孕次、分娩方式、新生儿性别及空腹胰岛素、稳态模型胰岛素抵抗指数无差异(P>0.05),低血糖组分娩期血糖控制不佳、早产儿、低出生体重儿、出生1minApgar评分≤7分患儿占比、空腹血糖(FBG)、糖化血红蛋白(HbA1c)均高于血糖正常组,血清FT3(6.25±1.47pmmol/L)、FT4(13.95±1.44pmmol/L)、25-(OH)D(27.56±3.28ng/ml)水平均低于血糖正常组(6.76±1.51pmmol/L、18.43±1.56pmmol/L、36.42±5.24ng/ml)(均P0.05);相关性分析显示,血清FT3、FT4与FBG、HbA1c呈负相关(P0.05);25-(OH)D与FBG、HbA1c、FINS、HOMA-IR呈负相关(P<0.05)。分娩期血糖控制欠佳、FBG升高、低出生体重儿、HbA1c升高、FT3降低、FT4降低、25-(OH)D降低是GDM孕妇分娩低血糖新生儿的影响因素(均P<0.05)。结论:新生儿低血糖与GDM孕妇血清FT3、FT4、25-(OH)D水平降低有关。

关键词：妊娠期糖尿病新生儿低血糖甲状腺激素 25-羟维生素D 相关性影响因素

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Hierarchical polypyrrole@cobalt sulfide-based flexible on-chip microsupercapacitors with ultrahigh energy density for selfcharging system

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Nano Research 2023年第1期16卷 555-563页

作者： Yan Zhao Jihua Zheng Jing Yang Wenjie liu Fen Qiao Jiabiao lian guochun li Tao Wang Jiangwei Zhang limin Wu College of Energy Material and Chemistry College of Chemistry and Chemical EngineeringInner Mongolia UniversityHohhot 010021China Institute for Energy Research School of Energy&Power EngineeringJiangsu UniversityZhenjiang 212013China Department of Materials Science Fudan UniversityShanghai 200433China Key Laboratory of Power Station Energy Transfer Conversion and System Ministry of EducationNorth China Electric Power UniversityBeijing 102206China

Herein,we prepare the unique hierarchical polypyrrole@cobalt sulfide(PPy-hs@CoS)hollow sphere-based nanofilms as interdigitated electrodes for flexible on-chip micro-supercapacitors(MSC).Benefiting from the excellent flexibility and high electrical conductivity of PPy-hs combined with the great electrochemical activity of CoS,such PPy-hs@CoS composite material can not only inhibit the volume expansion of PPy but also promote the diffusion of the electrolyte ions.The PPy-hs@CoS filmbased electrode delivers a greatly improved specific capacitance and small resistance.Density functional theory calculations infer that OH−prefers to bind to PPy on CoS@PPy and confirms the synergistic effect of each component for enhanced reaction kinetics.A quasi-solid-state on-chip flexible asymmetric MSC based on PPy-hs@CoS and activated carbon(AC)microelectrodes exhibits large areal-specific capacitance(131.9 mF/cm2 at 0.3 mA/cm2),ultrahigh energy density(0.041 mWh/cm2@0.224 mW/cm2 and 25.6 mWh/cm3@140.6 mW/cm3),and long cycle lifespan.We demonstrate the possibility to scale up the PPy-hs@CoS nanofilm microelectrode by arranging two of our asymmetric MSC in series and parallel connections,which respectively increase the output voltage and current.A self-charging system by connecting our asymmetric MSCs with a piece of commercial solar cells is developed as a potential possible mode for future highly durable and high-voltage integrated electronics.

关键词： polypyrrole cobalt sulfide adsorption energy on-chip micro-supercapacitor self-charging device

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State of Charge Estimation for lithium-Ion Battery Based on Improved Cubature Kalman Filter Algorithm

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Automotive Innovation 2021年第2期4卷 189-200页

作者： guochun li Chang liu Enlong Wang limei Wang Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China Institute for Energy Research Jiangsu UniversityZhenjiang 212013China

An improved cubature Kalman filter(CKF)algorithm for estimating the state of charge of lithium-ion batteries is proposed.This improved algorithm implements the diagonalization decomposition of the covariance matrix and a strong tracking filter.First,a first-order RC equivalent circuit model is first established and verified,whose voltage estimation error is within 1.5%;this confirms that the model can be used to describe the characteristics of a battery.Then the calculation processes of the traditional and proposed CKF algorithms are compared.Subsequently,the improved CKF algorithm is applied to the state of charge estimation under the constant-current discharge and dynamic stress test conditions.The average errors for these two conditions are 0.76%and 1.2%,respectively,and the maximum absolute error is only 3.25%.The results indicate that the proposed method has higher filter stability and estimation accuracy than the extended Kalman filter(EKF),unscented Kalman filter(UKF)and traditional CKF algorithms.Finally,the convergence rates of the above four algorithms are compared,among which the proposed algorithm track the referenced values at the highest speed.

关键词： lithium-ion battery State of charge Cubature Kalman filter Strong tracking filter Covariance matrix diagonalization decomposition

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Boosting the performance of liNi_(0.90)Co_(0.06)Mn_(0.04)O_(2) electrode by uniform li_(3)PO_(4) coating via atomic layer deposition

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Chinese Chemical Letters 2024年第5期35卷 499-503页

作者： Mingjiao Lu Zhixing Wang Gui Luo Huajun Guo Xinhai li guochun Yan Qihou li Xianglin li Ding Wang Jiexi Wang School of Metallurgy and Environment Central South UniversityChangsha 410083China BASF ShanShan Battery Materials Co. Ltd.Changsha 410006China Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy Central South UniversityChangsha 410083China School of Physics and Chemistry Hunan First Normal UniversityChangsha 410205China National and Local Joint Engineering Laboratory for lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China

Ultra-high nickel material is considered to be a promising cathode material.However,with the increase of nickel content,the interfacial side reactions between the cathode and electrolyte become increasingly serious.Herein,an atomically controllable ionic conductor li_(3)PO_(4)(LPO)coating is deposited on the liNi_(0.90)Co_(0.06)Mn_(0.04)O_(2)(NCM9064)based electrode by the atomic layer deposition method.The results shows that the LPO coating is uniformly and densely covered on the surface of secondary particles of NCM9064,helping to prevent the direct contact between the electrolyte and cathode during the chargingdischarging process.In addition,the coating layer is electrochemically stable.As a result,the interfacial side reactions during the long cycle are effectively suppressed,and the solid electrolyte interphase layer at the interface is stabilized.The electrode with 20 layers of LPO deposition(ALD-LPO-20)exhibits an excellent capacity retention of 81%after 200 cycles in 2.8-4.3 V at 25℃,which is 18%higher than the unmodified material(ALD-LPO-0).Besides,the moderate LPO coating improves the rate capability and high temperature cycling performance of NCM9064.This study provides a method for the modification of ultra-high nickel cathode materials and corresponding electrodes.

关键词： Ultra-high nickel material liNi_(0.90)Co_(0.06)Mn_(0.04)O_(2) Atomic layer deposition li_(3)PO_(4) Ionic conductor

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