article thumbnail

Researchers develop new stable artificial photosynthesis device to produce ethylene and hydrogen from sunlight and CO2

Green Car Congress

A research team has developed a new artificial photosynthesis device component with remarkable stability and longevity as it selectively converts sunlight and carbon dioxide into two promising sources of renewable fuels: ethylene and hydrogen. The device produced ethylene and hydrogen with unprecedented selectivity and for more than 24 hours.

Hydrogen 305
article thumbnail

Organic cathode material for high-capacity Li-ion battery with fast charge and discharge

Green Car Congress

Li-ion cathode materials that deliver high power and capacity and that also do not contain heavy metals are highly desired from a viewpoint of sustainability, the team notes in their paper. discharge properties as a cathode material in a Li-ion battery. discharge cycling of PPYT in LiNTf 2 /G4 at 45 °C, 1 C rate).

Li-ion 287
article thumbnail

Rice theorists suggest layered graphene-boron Li-ion electrode material could have twice the capacity of graphite

Green Car Congress

Calculations by the Rice lab of theoretical physicist Boris Yakobson suggest that a layered graphene/boron (C 3 B) Li-ion battery anode material should have a capacity about twice that of graphite, with comparable power density and small volume variation during discharge/charge cycles. For example, two-dimensional (2D) carbon?graphene,

Li-ion 210
article thumbnail

An abundant and inexpensive water-splitting photocatalyst with low toxicity active in visible light

Green Car Congress

Researchers at Japan’s National Institute for Materials Science (NIMS) have discovered a new photocatalyst, Sn 3 O 4 , which facilitates the production of hydrogen fuel from water, using sunlight as an energy source. Maidhily Manikandan, Toyokazu Tanabe, Peng Li, Shigenori Ueda, Gubbala V. —Manikandan et al.

Water 170
article thumbnail

Tsinghua review of solid-state Li-metal batteries finds great promise, but much work still to be done

Green Car Congress

In a review published in the journal Chem of the technical issues generated by the mating of Li-metal anodes and solid-state electrolytes, a team from Tsinghua University concludes that such solid-state lithium metal batteries (SSLMBs) have “ brilliant prospects, though practically there are still many barriers to be overcome. ”. Cheng et al.

Li-ion 247
article thumbnail

Gravity Batteries, Green Hydrogen, and a Thorium Reactor for China

Cars That Think

As the pandemic continued to grind on, it was actually comforting to know that smart people in the energy sector were working hard to keep the lights on, advance the technology, and improve people’s lives. This time around, though, the emphasis is on “green hydrogen”—that is, hydrogen produced using clean energy such as solar or wind power.

Hydrogen 106
article thumbnail

Stanford team uses nanodiamond thin film to stablize Li metal anode; significantly improved battery performance in half and Li-S full cells

Green Car Congress

Although Li metal anode are a promising enabler for high-energy-density next-generation battery systems, practical applications are severely hindered by low efficiency and potential safety hazards, largely due to the high reactivity of metallic Li toward liquid electrolytes. V versus standard hydrogen electrodes).

Li-ion 199