CN106784640B CN201510828445.3A CN201510828445A CN106784640B CN 106784640 B CN106784640 B CN 106784640B CN 201510828445 A CN201510828445 A CN 201510828445A CN 106784640 B CN106784640 B CN 106784640B Authority CN China Prior art keywords silicon nano negative electrode based composite graphite Prior art date 2015-11-25 Legal status (The …
We have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube (Si/CNTs) composite for Li-ion batteries.
The limitations in potential for the electroactive material of the negative electrode are less important than in the past thanks to the advent of 5 V electrode materials for the cathode in lithium-cell batteries. However, to maintain cell voltage, a deep study of new electrolyte–solvent combinations is required.
For evaluation purposes, the film was punched into discs with a diameter of 12 mm. The average thickness of the positive electrode is 70 µm, while the thickness of the negative electrode is 30 µm.
The Si negative electrode is a negative electrode material that stores Li through insertion of Li into Si. The following SEM image was obtained as a result of observing how Li was inserted by charging single-crystal Si with 40% charged while using the single-crystal Si as the negative electrode.
Mainly, the high solubility in aqueous electrolytes of the ZnO produced during cell discharge in the negative electrode favors a poor reproducibility of the electrode surface exposed to the electrolyte with risk of formation of zinc dendrites during charge. In order to avoid this problem, mixing with graphite has favorable effects.
The origins of such a poor cycling performance are diverse. Mainly, the high solubility in aqueous electrolytes of the ZnO produced during cell discharge in the negative electrode favors a poor reproducibility of the electrode surface exposed to the electrolyte with risk of formation of zinc dendrites during charge.
CN106784640B CN201510828445.3A CN201510828445A CN106784640B CN 106784640 B CN106784640 B CN 106784640B CN 201510828445 A CN201510828445 A CN 201510828445A CN 106784640 B CN106784640 B CN 106784640B Authority CN China Prior art keywords silicon nano negative electrode based composite graphite Prior art date 2015-11-25 Legal status (The …
Get PriceA negative electrode material applied to a lithium battery or a sodium battery is provided. The negative electrode material is composed of a first chemical element, a second chemical...
Get Pricean objective of this disclosure is to provide a carbon-silicon negative electrode material and a negative electrode composite slurry that can achieve the uniform dispersion, improve the...
Get PriceIn a battery, on the same electrode, both reactions can occur, whether the battery is discharging or charging. When naming the electrodes, it is better to refer to the positive electrode and the negative electrode. The positive electrode is the electrode with a higher potential than the negative electrode. During discharge, the positive electrode is a cathode, …
Get PriceSilicon is getting much attention as the promising next-generation negative electrode materials for lithium-ion batteries with the advantages of abundance, high theoretical specific capacity and environmentally friendliness. In this work, a series of phosphorus (P)-doped silicon negative electrode materials (P-Si-34, P-Si-60 and P-Si-120) were obtained by a simple …
Get PriceWe have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube (Si/CNTs) composite for Li-ion batteries. Comparatively inexpensive silica and magnesium powder were used in typical hydrothermal method along with carbon nanotubes for the production of silicon ...
Get PriceThe present disclosure provides a negative electrode material and a preparation method thereof, a negative electrode and an all-solid-state lithium-ion battery. The negative...
Get PriceWe measured the magnetic susceptibility of the amount of metallic Ni and predicted the battery life from the level of corrosion (oxidation). A superlattice alloy with high capacity and high corrosion resistance, which was originally …
Get PriceWe measured the magnetic susceptibility of the amount of metallic Ni and predicted the battery life from the level of corrosion (oxidation). A superlattice alloy with high capacity and high corrosion resistance, which was originally developed, …
Get PriceNano-silicon (nano-Si) and its composites have been regarded as the most promising negative electrode materials for producing the next-generation Li-ion batteries (LIBs), due to their ultrahigh theoretical capacity. However, the commercial applications of nano Si-based negative electrode materials are constrained by the low cycling stability and high costs. The …
Get PriceIn this study, we introduced Ti and W into the Nb 2 O 5 structure to create Nb 1.60 Ti 0.32 W 0.08 O 5−δ (NTWO) and applied it as the negative electrode in ASSBs. …
Get PriceLithium-ion battery (LIB) technology has ended to cover, in almost 25 years, the 95% of the secondary battery market for cordless device (mobile phones, laptops, cameras, working tools) [1] thanks to its versatility, high round trip efficiency and adequate energy density. Its market permeability also relates to automotive field, where a high energy density is …
Get PriceThe development of advanced rechargeable batteries for efficient energy storage finds one of its keys in the lithium-ion concept. The optimization of the Li-ion technology urgently needs improvement for the active material of the negative electrode, and many recent papers in the field support this tendency. Moreover, the diversity in the ...
Get PriceWe have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube (Si/CNTs) composite …
Get PriceAs battery technology advances, scientists are modifying various materials and entire battery systems through various means, in a bid to approach the theoretical capacity limits of different materials. To achieve breakthroughs, reevaluation and redesign of physical and chemical reactions at the atomic and molecular levels within entire systems are necessary. …
Get PriceThe development of advanced rechargeable batteries for efficient energy storage finds one of its keys in the lithium-ion concept. The optimization of the Li-ion …
Get PriceAluminum doped non-stoichiometric titanium dioxide as a negative electrode material for lithium-ion battery: In-operando XRD analysis Author links open overlay panel Guan-Bo Liao a, Jyun-Siang Wang a, Zheng Chong a, Cheng-Hsun Ho b, Yu-Min Shen b 1, Po-Chia Huang c, Chia-Chin Chang d e, Dipti R. Sahu f 1, Jow-Lay Huang a b
Get PriceWe can track how the negative electrode material changes in the charge-discharge process by combining various analysis methods. The following introduces examples of negative electrodes using single-crystal Si as the active material.
Get PriceThe present disclosure provides a negative electrode material and a preparation method thereof, a negative electrode and an all-solid-state lithium-ion battery. The negative...
Get PriceDFT calculations can provide vital information on the charge, energy, magnetism, rate capacity, and safety of rechargeable LIBs [18,19] and non-Li batteries. They can also provide results...
Get PriceIn metal tellurides, especially MoTe 2 exhibit remarkable potential as a good-rate negative electrode material as it has layered structure, high electrical conductivity, and …
Get PriceIn this study, we introduced Ti and W into the Nb 2 O 5 structure to create Nb 1.60 Ti 0.32 W 0.08 O 5−δ (NTWO) and applied it as the negative electrode in ASSBs. Compared to conventional...
Get PriceA typical contemporary LIB cell consists of a cathode made from a lithium-intercalated layered oxide (e.g., LiCoO 2, LiMn 2 O 4, LiFePO 4, or LiNi x Mn y Co 1−x O 2) and mostly graphite anode with an organic electrolyte (e.g., LiPF 6, LiBF 4 or LiClO 4 in an organic solvent). Lithium ions move spontaneously through the electrolyte from the negative to the …
Get PriceIn metal tellurides, especially MoTe 2 exhibit remarkable potential as a good-rate negative electrode material as it has layered structure, high electrical conductivity, and large interlayer spacing. This work has investigated the molybdenum ditellurides delivering high-capacity and ultra-cycling stability anode material for SIBs. The ...
Get PriceDFT calculations can provide vital information on the charge, energy, magnetism, rate capacity, and safety of rechargeable LIBs [18,19] and non-Li batteries. They can also provide results...
Get PriceThe performance of the synthesized composite as an active negative electrode material in Li ion battery has been studied. It has been shown through SEM as well as impedance analyses that the enhancement of charge transfer resistance, after 100 cycles, becomes limited due to the presence of CNT network in the Si-decorated CNT composite. Experimental. …
Get PriceAs the electrochemical reactions in electrode materials are dynamic, numerous in situ characterization methods have been developed to investigate the structural evolution of electrode materials during the dynamic electrochemical processes. 115, 116 Huang et al. constructed a nanoscale electrochemical device inside a high-resolution TEM to observe in …
Get Priceابقَ على اطلاع بأحدث الاتجاهات في صناعة الطاقة الشمسية والطاقة المتجددة في المنطقة. استعرض مقالاتنا الموثوقة للحصول على رؤى عميقة حول تقنيات الطاقة الشمسية المتقدمة، وتخزين الطاقة، وكيفية دمج هذه الحلول لتحسين الكفاءة الطاقية في المنازل والمشاريع الصناعية.