article thumbnail

Stanford researchers develop new electrolysis system to split seawater into hydrogen and oxygen

Green Car Congress

However, grid-scale freshwater electrolysis would put a heavy strain on vital water resources. Negatively charged chloride in seawater salt can corrode the anode, however, limiting the system’s lifespan. During electrolysis, the nickel sulfide evolves into a negatively charged layer that protects the anode. Yun Kuang, Michael J.

Hydrogen 249
article thumbnail

New aqueous rechargeable lithium battery shows good safety, high reliability, high energy density and low cost; another post Li-ion alternative

Green Car Congress

mol l -1 Li 2 SO 4 aqueous solution as electrolyte. Researchers from Fudan University in China and Technische Universität Chemnitz in Germany have developed an aqueous rechargeable lithium battery (ARLB) using coated Li metal as the anode. mol l -1 Li 2 SO 4 aqueous solution as electrolyte, an ARLB is built up. Wang et al.

Li-ion 281
article thumbnail

Ultrathin transition metal silicate nanosheet cathode material for Li-ion batteries supports reversible two-lithium-ion capacity

Green Car Congress

Charge and discharge profile of first and second cycles of Li 2 MnSiO 4 samples measured at 45 °C at 0.02C rate. Researchers from Tohoku University, Japan, have developed novel ultrathin Li 2 MnSiO 4 nanosheets for use as a cathode material in lithium-ion batteries. The Li/Li 2 MSiO 4 cells were cycled between 1.5

Li-ion 230
article thumbnail

ANL team develops new class of Li- and Na- rechargeable batteries based on selenium and selenium-sulfur; greater volumetric energy densities than sulfur-based batteries

Green Car Congress

Cycling performance of Li/SeS 2 ?C, Unlike the widely studied Li/S system, both Se and Se x S y can be cycled to high voltages (up to 4.6 However, both Li/S and Li/O 2. systems suffer from cycling performance issues that impede their commercial applications: Li/O 2. C) and metallic Li and Na. C, Na/SeS 2 ?C,

Recharge 220
article thumbnail

Dalhousie researchers find low-voltage NMC532 cells have higher energy density than LFP, very long lifetime

Green Car Congress

Researchers led by Professor Jeff Dahn at Dalhousie University in Canada report that low-voltage NMC cells—particularly those balanced and charged to 3.8V Single crystal Li[Ni 0.5 Single crystal Li[Ni 0.5 V) were cycled with charging to either 3.65 V vs Li + /Li. V vs Li + /Li, or 4.2

Ni-Li 345
article thumbnail

DOE seeking comment on draft $50M solicitation for new projects over 11 areas of interest to improve vehicle performance and decrease fuel consumption

Green Car Congress

The objective of this AOI is to attract and fund research efforts to understand and overcome the barriers impeding the successful utilization of commercial or near commercial high energy Li-ion couples that can meet the performance, lifetime and cost requirements of PHEV40 or EV batteries. Characteristics.

Li-ion 240
article thumbnail

The 80-20 Rule

Plug In Partners

The grid is getting cleaner each year , and will continue to do so as we replace fossil power plants with renewables, while a gasoline car gets dirtier as it ages. grid is only 49% coal (natural gas is 20%, nuclear is 20%, hydro is 7%, and other renewables are 2.4%). Pollution here includes greenhouse gases such as carbon-dioxide.

EPRI 100