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article

Stirring effect in hydrothermal synthesis of nano C-LiFePO4

K. Vediappan, A. Guerfi, V. Gariépy, G.P. Demopoulos, more

Journal of Power Sources > 2014 > 266 > Complete > 99-106

C-LiFePO ₄ positive electrode materials were prepared by hydrothermal synthesis in which the solution was stirred with a rotation frequency varying from 50 to 1150 revolutions per minute (rpm), before carbon coating. The different synthesized cathode materials are discussed and compared in terms of structural, surface-morphological and electrochemical properties. The best C-LiFePO ₄ ...

article

MnSn2 electrodes for Li-ion batteries: Mechanisms at the nano scale and electrode/electrolyte interface

B. Philippe, A. Mahmoud, J.-B. Ledeuil, M.T. Sougrati, more

Electrochimica Acta > 2014 > 123 > Complete > 72-83

We have investigated the reaction mechanisms occurring upon the first discharge/charge cycle of a MnSn ₂ //Li electrochemical cell, by using bulk- and surface-sensitive characterization techniques (X-ray Diffraction, ¹¹⁹ Sn Mössbauer spectroscopy, magnetic measurements, X-ray photoelectron and Auger spectroscopies). Compared to other tin-transition metal alloys, MnSn ₂ displays...

article

Composite materials based on polymer-derived SiCN ceramic and disordered hard carbons as anodes for lithium-ion batteries

Monika Wilamowska, Magdalena Graczyk-Zajac, Ralf Riedel, M. Wilamowska, more

Journal of Power Sources > 2013 > 244 > Complete > 80-86

New composite materials based on polymer-derived SiCN ceramics and hard carbons were studied in view of its application as anodes for lithium-ion batteries. Two kinds of composites were prepared by pyrolysis of the preceramic polysilazane (HTT1800, Clariant) at 1000°C in Ar atmosphere mixed with hard carbons derived from potato starch (HC_PS) or with a hard carbon precursor, namely potato starch (PS),...

article

An Effective Strategy on Synthesizing a Stable SiO_x‐Based Anode for High Density Lithium‐Ion Batteries

Zhenyuan Tang, Zhengyu Zhang, Jiani Wu, Minglv Zhang, more

Chemistry – A European Journal > 30 > 56 > n/a - n/a

Silicon oxides (SiO_x) have received extensive attention as a promising anode candidate for next‐generation lithium‐ion batteries (LIBs). However, their commercial applications have been seriously hindered by low conductivity, large volume expansion, and unstable solid‐electrolyte interface (SEI) layer, which result in low initial coulombic efficiency, poor rate performance, and short cycling lifespan...

article

Regulating Anode‐Electrolyte Interphasial Reactions by Zwitterionic Binder Chemistry in Lithium‐Ion Batteries with High‐Nickel Layered Oxide Cathodes and Silicon‐Graphite Anodes

Biyu Jin, Andrei Dolocan, Chen Liu, Zehao Cui, more

Angewandte Chemie > 136 > 42 > n/a - n/a

The practical application of silicon (Si)‐based anodes faces challenges due to severe structural and interphasial degradations. These challenges are exacerbated in lithium‐ion batteries (LIBs) employing Si‐based anodes with high‐nickel layered oxide cathodes, as significant transition‐metal crossover catalyzes serious parasitic side reactions, leading to faster cell failure. While enhancing the mechanical...

article

Regulating Anode‐Electrolyte Interphasial Reactions by Zwitterionic Binder Chemistry in Lithium‐Ion Batteries with High‐Nickel Layered Oxide Cathodes and Silicon‐Graphite Anodes

Biyu Jin, Andrei Dolocan, Chen Liu, Zehao Cui, more

Angewandte Chemie International Edition > 63 > 42 > n/a - n/a

The practical application of silicon (Si)‐based anodes faces challenges due to severe structural and interphasial degradations. These challenges are exacerbated in lithium‐ion batteries (LIBs) employing Si‐based anodes with high‐nickel layered oxide cathodes, as significant transition‐metal crossover catalyzes serious parasitic side reactions, leading to faster cell failure. While enhancing the mechanical...

article

Molecule Design for Non‐Aqueous Wide‐Temperature Electrolytes via the Intelligentized Screening Method

Tian Qin, Haoyi Yang, Lei Wang, Weiran Xue, more

Angewandte Chemie > 136 > 37 > n/a - n/a

Operating a lithium‐ion battery (LIB) in a wide temperature range is essential for ensuring a stable electricity supply amidst fluctuating temperatures caused by climate or terrain changes. Electrolyte plays a pivotal role in determining the temperature durability of batteries. However, specialized electrolytes designed for either low or high temperatures typically possess distinct features. Therefore,...

article

Molecule Design for Non‐Aqueous Wide‐Temperature Electrolytes via the Intelligentized Screening Method

Tian Qin, Haoyi Yang, Lei Wang, Weiran Xue, more

Angewandte Chemie International Edition > 63 > 37 > n/a - n/a

Operating a lithium‐ion battery (LIB) in a wide temperature range is essential for ensuring a stable electricity supply amidst fluctuating temperatures caused by climate or terrain changes. Electrolyte plays a pivotal role in determining the temperature durability of batteries. However, specialized electrolytes designed for either low or high temperatures typically possess distinct features. Therefore,...

article

Garnet and Li₂₉Zr₉Nb₃O₄₀ Modified PEO‐Based Hybrid Solid Electrolytes for All‐Solid‐State Lithium Metal Batteries

Qing Liu, Haiqin Lin, Jie Zhao, Bingxue Zhou, more

European Journal of Inorganic Chemistry > 27 > 24 > n/a - n/a

Inorganic‐organic hybrid solid electrolytes (HSEs) are an important category of electrolyte materials for solid‐state batterie. It is of interest and importance to investigate the influence of composition and content of inorganic fillers on the electrochemical performance of HSEs. In this paper, we fabricated HSEs using polyethylene oxide (PEO) as matrix and incorporating different inorganic powders...

article

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Xin Chang, Min Fan, Boheng Yuan, Wei‐Huan He, more

Angewandte Chemie > 136 > 32 > n/a - n/a

The surge in lithium‐ion batteries has heightened concerns regarding metal resource depletion and the environmental impact of spent batteries. Battery recycling has become paramount globally, but conventional techniques, while effective at extracting transition metals like cobalt and nickel from cathodes, often overlook widely used spent LiFePO₄ due to its abundant and low‐cost iron content. Direct...

article

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Xin Chang, Min Fan, Boheng Yuan, Wei‐Huan He, more

Angewandte Chemie International Edition > 63 > 32 > n/a - n/a

The surge in lithium‐ion batteries has heightened concerns regarding metal resource depletion and the environmental impact of spent batteries. Battery recycling has become paramount globally, but conventional techniques, while effective at extracting transition metals like cobalt and nickel from cathodes, often overlook widely used spent LiFePO₄ due to its abundant and low‐cost iron content. Direct...

article

Opening and Constructing Stable Lithium‐ion Channels within Polymer Electrolytes

Yangmingyue Zhao, Libo Li, Da Zhou, Yue Ma, more

Angewandte Chemie International Edition > 63 > 31 > n/a - n/a

Lithium‐ion batteries play an integral role in various aspects of daily life, yet there is a pressing need to enhance their safety and cycling stability. In this study, we have successfully developed a highly secure and flexible solid‐state polymer electrolyte (SPE) through the in situ polymerization of allyl acetoacetate (AAA) monomers. This SPE constructed an efficient Li⁺ transport channel inside...

article

Opening and Constructing Stable Lithium‐ion Channels within Polymer Electrolytes

Yangmingyue Zhao, Libo Li, Da Zhou, Yue Ma, more

Angewandte Chemie > 136 > 31 > n/a - n/a

Lithium‐ion batteries play an integral role in various aspects of daily life, yet there is a pressing need to enhance their safety and cycling stability. In this study, we have successfully developed a highly secure and flexible solid‐state polymer electrolyte (SPE) through the in situ polymerization of allyl acetoacetate (AAA) monomers. This SPE constructed an efficient Li⁺ transport channel inside...

article

Surface Coordination Modulated Morphological Anisotropic Engineering of Iron‐Benzoquinone Frameworks for Lithium‐Ion Batteries

Jiarun Geng, Yaohui Huang, Yihe Guo, Haixia Li, more

Angewandte Chemie > 136 > 30 > n/a - n/a

Morphological anisotropic engineering is powerful to synthesize metal–organic frameworks (MOFs) with versatile physicochemical properties for diverse applications ranging from gas storage/separation to electrocatalysis and batteries, etc. Herein, we developed a carbon substrate guided strategy to manipulate the facet‐dependent coordination for morphology engineering of Fe‐THBQ (tetrahydroxy‐1,4‐benzoquinone)...

article

Surface Coordination Modulated Morphological Anisotropic Engineering of Iron‐Benzoquinone Frameworks for Lithium‐Ion Batteries

Jiarun Geng, Yaohui Huang, Yihe Guo, Haixia Li, more

Angewandte Chemie International Edition > 63 > 30 > n/a - n/a

Morphological anisotropic engineering is powerful to synthesize metal–organic frameworks (MOFs) with versatile physicochemical properties for diverse applications ranging from gas storage/separation to electrocatalysis and batteries, etc. Herein, we developed a carbon substrate guided strategy to manipulate the facet‐dependent coordination for morphology engineering of Fe‐THBQ (tetrahydroxy‐1,4‐benzoquinone)...

article

Imidazole‐Intercalated Cobalt Hydroxide Enabling the Li⁺ Desolvation/Diffusion Reaction and Flame Retardant Catalytic Dynamics for Lithium Ion Batteries

Liu Yang, Yisha Wang, Jingwen Wang, Yapeng Zheng, more

Angewandte Chemie International Edition > 63 > 24 > n/a - n/a

Lithium‐ion batteries have found extensive applications due to their high energy density and low self‐discharge rates, spanning from compact consumer electronics to large‐scale energy storage facilities. Despite their widespread use, challenges such as inherent capacity degradation and the potential for thermal runaway hinder sustainable development. In this study, we introduce a unique approach to...

article

Imidazole‐Intercalated Cobalt Hydroxide Enabling the Li⁺ Desolvation/Diffusion Reaction and Flame Retardant Catalytic Dynamics for Lithium Ion Batteries

Liu Yang, Yisha Wang, Jingwen Wang, Yapeng Zheng, more

Angewandte Chemie > 136 > 24 > n/a - n/a

Lithium‐ion batteries have found extensive applications due to their high energy density and low self‐discharge rates, spanning from compact consumer electronics to large‐scale energy storage facilities. Despite their widespread use, challenges such as inherent capacity degradation and the potential for thermal runaway hinder sustainable development. In this study, we introduce a unique approach to...

article

Amorphous Anode Materials for Fast‐charging Lithium‐ion Batteries

Savithri Vishwanathan, Harshit Pandey, H. S. S. Ramakrishna Matte

Chemistry – A European Journal > 30 > 22 > n/a - n/a

Fast‐charging technology is set to revolutionize the field of lithium‐ion batteries (LIBs), driving the creation of next‐generation devices with the ability to get charged within a short span of time. From the anode perspective, it is of paramount importance to design materials that can withstand continuous Li⁺ insertion/deinsertion at high charging rates and still remain unaffected by factors such...

article

Niobium‐Based Oxide for Anode Materials for Lithium‐Ion Batteries

Yun Sheng, Yishan Wang, Shujuan Yin, Lianyu Zhao, more

Chemistry – A European Journal > 30 > 19 > n/a - n/a

Recently, it has become imperative to develop high energy density as well as high safety lithium‐ion batteries (LIBS) to meet the growing energy demand. Among the anode materials used in LIBs, the currently used commercial graphite has low capacity and is a safety hazard due to the formation of lithium dendrites during the reaction. Among the transition metal oxide (TMO) anode materials, TMO based...

article

Porphyrin‐Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium‐Organic Batteries

Xing Wu, Wang Zhou, Chao Ye, Jiahao Zhang, more

Angewandte Chemie International Edition > 63 > 14 > n/a - n/a

Organic electrode materials are promising for next‐generation energy storage materials due to their environmental friendliness and sustainable renewability. However, problems such as their high solubility in electrolytes and low intrinsic conductivity have always plagued their further application. Polymerization to form conjugated organic polymers can not only inhibit the dissolution of organic electrodes...

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Search results

Stirring effect in hydrothermal synthesis of nano C-LiFePO4

MnSn2 electrodes for Li-ion batteries: Mechanisms at the nano scale and electrode/electrolyte interface

Composite materials based on polymer-derived SiCN ceramic and disordered hard carbons as anodes for lithium-ion batteries

An Effective Strategy on Synthesizing a Stable SiO_x‐Based Anode for High Density Lithium‐Ion Batteries

Regulating Anode‐Electrolyte Interphasial Reactions by Zwitterionic Binder Chemistry in Lithium‐Ion Batteries with High‐Nickel Layered Oxide Cathodes and Silicon‐Graphite Anodes

Regulating Anode‐Electrolyte Interphasial Reactions by Zwitterionic Binder Chemistry in Lithium‐Ion Batteries with High‐Nickel Layered Oxide Cathodes and Silicon‐Graphite Anodes

Molecule Design for Non‐Aqueous Wide‐Temperature Electrolytes via the Intelligentized Screening Method

Molecule Design for Non‐Aqueous Wide‐Temperature Electrolytes via the Intelligentized Screening Method

Garnet and Li₂₉Zr₉Nb₃O₄₀ Modified PEO‐Based Hybrid Solid Electrolytes for All‐Solid‐State Lithium Metal Batteries

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Approaching Sustainable Lithium‐Ion Batteries through Voltage‐Responsive Smart Prelithiation Separator with Surface‐Engineered Sacrificial Lithium Agents

Opening and Constructing Stable Lithium‐ion Channels within Polymer Electrolytes

Opening and Constructing Stable Lithium‐ion Channels within Polymer Electrolytes

Surface Coordination Modulated Morphological Anisotropic Engineering of Iron‐Benzoquinone Frameworks for Lithium‐Ion Batteries

Surface Coordination Modulated Morphological Anisotropic Engineering of Iron‐Benzoquinone Frameworks for Lithium‐Ion Batteries

Imidazole‐Intercalated Cobalt Hydroxide Enabling the Li⁺ Desolvation/Diffusion Reaction and Flame Retardant Catalytic Dynamics for Lithium Ion Batteries

Imidazole‐Intercalated Cobalt Hydroxide Enabling the Li⁺ Desolvation/Diffusion Reaction and Flame Retardant Catalytic Dynamics for Lithium Ion Batteries

Amorphous Anode Materials for Fast‐charging Lithium‐ion Batteries

Niobium‐Based Oxide for Anode Materials for Lithium‐Ion Batteries

Porphyrin‐Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium‐Organic Batteries

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