Green Car Congress

JANUARY 9, 2013

Electrochemical performance of sulfur–TiO 2 yolk–shell nanostructures. (a) a) Charge/discharge capacity and Coulombic efficiency over 1,000 cycles at 0.5 b) Capacity retention of sulfur–TiO 2 yolk–shell nanostructures cycled at 0.5 C, in comparison with bare sulfur and sulfur–TiO 2 core–shell nanoparticles.

Lithium Sulfur 231

Lithium Sulfur Batteries Battery Energy Storage 231

Green Car Congress

MARCH 30, 2018

The researchers ramped up the current density (charge-discharge rate) of the battery, thereby triggering extensive self-heating of the resulting dendrites, resulting in the surface diffusion of lithium—in other words, spreading the dendrites into an even layer. Dendrite healing in a Li-S battery. 2 without the healing treatment.

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Li-ion Lithium Sulfur Lithium Ion Batteries 210

Green Car Congress

JUNE 1, 2015

The carbons simultaneously exhibit electrical conductivity more than 3x more than activated carbons; very high electrochemical activity at high mass loading; and high stability, as demonstrated by supercapacitors and lithium–sulfur batteries with excellent performance. Tests were also conducted on lithium-sulfur batteries.

Energy Storage 150

Energy Storage Carbon Lithium Sulfur Energy 150

Green Car Congress

AUGUST 11, 2016

Lithium-sulfur batteries are extremely attractive as a next-generation energy storage solution due to their high theoretical energy density (2600 W·h·kg −1 ), environmental friendliness, and low cost due to the earth-abundant resource of elemental sulfur—also a byproduct from the petroleum industry. Credit: ACS et al.

Li-ion 150

Li-ion Lithium Sulfur Transportation Batteries 150

Green Car Congress

FEBRUARY 26, 2010

The nanostructured design of both electrodes assists in overcoming issues associated with using sulfur compounds and silicon in lithium-ion batteries, including poor electrical conductivity, significant structural changes, and volume expansion. Click to enlarge. However, Yang et al. Although the system has an average voltage of ~2.2

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Li-ion Recharge Lithium Sulfur Energy 199

Green Car Congress

DECEMBER 31, 2012

They evaluated the synthesized material as cathode materials in a half-cell lithium battery. Under a charge/discharge current of 200 mA g -1 , the materials showed stable reversible capacities of 500 mA g -1 and Coulombic efficiencies of nearly 100%. —Guo et al. Juchen Guo, Zichao Yang, Yingchao Yu, Héctor D.

Li-ion 257

Li-ion Lithium Ion Batteries Battery 257

Green Car Congress

APRIL 11, 2015

1 in comparison with S-G-2. (d) charge profiles at various current rates from C/8 to 8C. (e) Bin Li, Songmei Li, Jianhua Liu, Bo Wang, and Shubin Yang (2015) “Vertically Aligned Sulfur–Graphene Nanowalls on Substrates for Ultrafast Lithium–Sulfur Batteries” Nano Letters doi: 10.1021/acs.nanolett.5b00064.

Li-ion 150

Li-ion Batteries Battery Lithium Sulfur 150

Green Car Congress

JULY 8, 2013

Accordingly, new battery systems using new chemistries and system configurations are needed, which are capable of achieving higher energy density than the current ones.The alternative to make a less problematic storage system [than lithium-sulfur or lithium-O 2 ] is aqueous lithium batteries. capacity retention and 99.5-100%

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Li-ion Ni-Li Energy Batteries 255

Green Car Congress

SEPTEMBER 11, 2012

(A) Comparison of different Li-ion cathode materials. 1 V at the beginning of the first charging of Li 2 S. The formation of the polysulfide phase dramatically improves the kinetics of Li 2 S, such as the charge transfer process, they found. Summary of the model for the initial charging of Li 2 S. V vs Li/Li+. (B)

Lithium Sulfur 218

Lithium Sulfur Li-ion Lithium Ion Energy 218

Green Car Congress

APRIL 30, 2015

Korea have devised a dual-layered cathode for Lithium-sulfur batteries (LSBs) comprising a sulfur-nanoparticle–graphene composite as the sulfur active layer and a polysulfide absorption layer to minimize the effects of the performance-decaying polysulfide shuttle. —Kim et al. and Lee, J. 201500111. Guardia, J.

Lithium Sulfur 150

Lithium Sulfur Spain 2010 Water 150

Cars That Think

DECEMBER 24, 2023

She stops at a charging station, taps her credit card at the pump, inserts a nozzle into the car, and in 5 minutes exchanges 400 liters of spent nanofluid for fresher stuff. As she waits, a tanker pulls up to refill the station itself by exchanging tens of thousands of liters of charged for spent fuel.

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Lithium Ion Batteries Battery Li-ion 145

Green Car Congress

NOVEMBER 1, 2012

(c) GDC voltage profiles of S/(CNT@MPC) at different discharge/charge rates. (d) Researchers in China are proposing a new strategy for addressing some of the issues limiting the commercialization of high energy density lithium-sulfur batteries ( earlier post ): using small sulfur allotropes (different forms of the same element)—i.e.,

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Li-ion China Batteries Battery 281