Investigation of Potassium Storage in Layered P3-Type K0.5MnO2 Cathode

Novel and low-cost batteries are of considerable interest for application in large-scale energy storage systems, for which the cost per cycle becomes critical. Here, this study proposes K0.5MnO2 as a potential cathode material for K-ion batteries as an alternative to Li technology. K0.5MnO2…

Fabrication of Fe3O4 Dots Embedded in 3D Honeycomb-Like Carbon Based on Metallo–Organic Molecule with Superior Lithium Storage Performance

A novel metallo–organic molecule, ferrocene, is selected as building block to construct Fe3O4 dots embedded in 3D honeycomb-like carbon (Fe3O4 dots/3DHC) by using SiO2 nanospheres as template. Unlike previously used inorganic Fe3O4 sources, ferrocene simultaneously contains organic cyclopentadienyl groups and inorganic Fe atoms,…

A Novel Phase-Transformation Activation Process toward Ni–Mn–O Nanoprism Arrays for 2.4 V Ultrahigh-Voltage Aqueous Supercapacitors

One of the key challenges of aqueous supercapacitors is the relatively low voltage (0.8–2.0 V), which significantly limits the energy density and feasibility of practical applications of the device. Herein, this study reports a novel Ni–Mn–O solid-solution cathode to widen the supercapacitor device…

Liquid nitrogen used to run engine as part of efforts to cut toxic air

A company is using “zero-emission” liquid nitrogen to run an ancillary engine powering a transport refrigeration unit in an innovation that could slash some types of road traffic pollution. The move comes as politicians in London are known to be examining whether there…

Facile and controllable one-pot synthesis of nickel-doped LiMn0.8Fe0.2PO4 nanosheets as high performance cathode materials for lithium-ion batteries

J. Mater. Chem. A, 2017, Accepted ManuscriptDOI: 10.1039/C7TA05942F, PaperYan Wang, Hao Yang, Cheng-Yu Wu, Jenq-Gong DuhTo improve the kinetic performance of LiMn0.8Fe0.2PO4, a facile and controllable non-stoichiometric one-pot stepwise feeding solvothermal approach is successfully developed for preparing the nickel-doped LiMn0.8Fe0.2PO4 nanosheets. An appropriate…

[email protected] yolk-shell nanorods as ultrahigh electrochemical performance anode for lithium ion batteries

J. Mater. Chem. A, 2017, Accepted ManuscriptDOI: 10.1039/C7TA06046G, PaperJiannian Li, Jun Yu, Amiinu Ibrahim Saana, Jie Zhang, Jinzhi Sheng, Zongkui Kou, Zhe Wang, Qiang Yu, Liqiang Mai, Shichun MuA considerable amount of intensive research has been made toward efficient energy storage, particularly rechargeable…

Highly porous carbon nanofibers co-doped with fluorine and nitrogen for outstanding supercapacitor performance

J. Mater. Chem. A, 2017, Advance ArticleDOI: 10.1039/C7TA04406B, PaperWonjoo Na, Jaemoon Jun, Jin Wook Park, Gyeongseop Lee, Jyongsik JangOne-dimensional nitrogen and fluorine co-doped mesoporous carbon nanofibers (NFMCNFs) were fabricated for energy storage electrodes with high specific capacitance and long-term cycle stability.To cite this…

IPhone 8 Expected to Give Reflective Benefits to Korean Electronics Industry

Benefits from iPhone 8While Apple is expected to launch its iPhone 8 in honor of the 10th anniversary of the launch of the first iPhone, the Korean IT and electronics companies that supply parts for the iPhone 8 will also enjoy the benefits…

China Virtually Bans Sale of S. Korean Electric Car Batteries in China

Reasons for BanningAlthough battery shipments in China that is the world’s largest electric car market are on a sharp rise, China’s import of electric vehicle batteries from South Korea declined for five consecutive years. This is because the Chinese government is driving a…

Samsung Electronics to Use Next-gen Substrate in Galaxy S9

Changing Component Market LandscapeA second typhoon blowing from Samsung Electronics that will shake the smartphone component market is coming. Samsung Electronics has decided to introduce in-cell touch displays and Substrate Like PCB (SLP) substrates in its strategic smartphones to be launched in the…