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Sensor targets acid stratification

Thu, 07/20/2017 - 09:27 -- News Editor
Sensor targets acid stratification

A new ‘sensor’ developed to combat acid stratification has been unveiled by Johnson Controls. 

The sensor, presented at last month’s international conference on lead-acid batteries (LABAT17) in Sofia, Bulgaria, comprises an array of several electrochemical mini-cell sensors that simultaneously and continuously measure electrolyte density in different parts of battery cells.

 

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Mitsui electrolyte boost

Thu, 04/20/2017 - 11:28 -- Xuan Zhong
Mitsui electrolyte boost

Japanese chemicals firm Mitsui has announced the startup of its electrolyte solution production facilities for lithium-ion batteries in Nagoya, Japan.

The new facilities with a total electrolyte solution capacity of 5,000 tonnes/year were built to meet growing domestic demand for lithium-ion electrolyte solution for batteries, according to the company.

 
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Canadian mining firm to enter growing VRFB materials market

Wed, 03/22/2017 - 09:37 -- Xuan Zhong
Canadian mining firm to enter growing VRFB materials market

A Canadian junior mining firm is set to move into the vanadium redox flow battery materials market after it successfully produced vanadium electrolyte during trials.

Toronto-based Golden Share Mining Corporation’s Vanadium Electrolyte (VE) was developed by Pacific Northwest National Laboratory of the United States Department of Energy (PNNL).

 

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Future of lead-acid lays beyond carbon additives

Mon, 09/05/2016 - 14:39 -- Paul Crompton
Future of lead-acid lays beyond carbon additives

Chinese battery maker Narada Power Source has boosted the performance of an advanced lead-acid battery by reducing the electrolyte and enhancing the partial state-of-charge window.

The company also tweaked the re-charge algorithms to allow its advanced deep-cycling valve regulated lead-acid (VRLA) battery to achieve more than 26,000 power-assisted cycles.

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U.S. firm claims breakthrough in Li-ion battery additive

Wed, 06/24/2015 - 11:47 -- Paul Crompton
U.S. firm claims breakthrough in Li-ion battery additive

San Diego company Wildcat Discovery Technologies claims to have discovered a set of electrolyte additives which will boost lithium-ion battery performance.

The U.S. firm claims its SuperFilm™ technology will enable a more uniform and stable solid electrolyte interphase (SEI) on cathodes and anodes.

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Alevo inaugurates North Carolina lithium module plant

Fri, 10/31/2014 - 12:14 -- Editor
Alevo's currently empty factory in Concord, North Carolina

Alevo, a hitherto virtually unknown Swiss firm, cut the ribbon on a 4m sq ft lithium-ion battery cell/module manufacturing plant in Concord, North Carolina on 28 October.

Hyped in mainstream media as a “revolutionary” lithium-ion battery, Alevo’s cells are based on standard lithium iron phosphate (LiFePO4), albeit with an inorganic gel electrolyte containing sulphur dioxide and a conductive fluorosulphinate salt that is thermally stable, non-volatile and flame resistant.

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Lithium-ion mobility research should focus on viscosity – Varta study

Wed, 10/29/2014 - 11:58 -- Laura Varriale

Austria-based battery research firm Varta Micro Innovation (Varta) has researched anode materials for lithium-ion batteries using a customised rolling-ball viscometer.

Varta researched the qualification and optimisation of new electrolytes such as silicon and discovered that the mobility of lithium-ions is greatly dependent on the viscosity of the electrolyte and that viscosity should be a key focus in technology research.

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Second team announced for E-racing series

Wed, 02/27/2013 - 17:36 -- Ruth Williams

China Racing has announced it will be taking part in the Formula E Championship electric vehicle race series in 2014. China Racing is the second of ten teams to be confirmed for the zero-emission race after UK-based Drayson Racing Technologies.

The teams will race on street circuits in ten cities across the world in electric cars. The cars for the inaugural year are being designed by McClaren, Spark Racing Technology and Dallara. All teams have the opportunity to use the customer car for the first year and encouraged to build their own cars for races in the following years. With support from Chinese automotive makers China Racing hopes to build a team car within three years.

(L-R): CEO Team China Racing – Steven Lu, Chairman Team China Racing - Yu Liu, FIA President - Jean Todt, First Secretary of the Chinese Embassy - Mr. Liang JianSheng, CEO Formula E Holdings - Alejandro Agag.

Alejandro Agag, Chief Executive Officer of Formula E Holdings said: “China has enormous potential for the expansion of electric vehicles as a tool to fight pollution in cities. We think the FIA Formula E Championship can be a powerful tool to make electric cars popular with the Chinese public, particularly the younger generations. Having a Chinese team with us in the Championship will be key to succeeding in that challenge.”

Porous Power separator reduces risk of thermal runaway

Wed, 02/27/2013 - 17:36 -- Ruth Williams

Porous Power Technologies (PPT) has launched a line of ceramic-filled battery separators designed to improve the thermal stability and safety of the large-format lithium-ion batteries used in electric vehicles, flat-cell consumer electronics, and high-power applications.

Under heat, the ceramic-filled polymer separators fuse together, leaving a thin film of ceramic particles between the electrodes and reduce the likelihood of hard shorts that can lead to thermal runaway and cell failure.

The ceramic particles are evenly distributed throughout the PPT chemically inert PVDF polymer. The particles reside primarily in the pore walls, leaving a large and uniform open pore structure that enable ions to pass through with less resistance and less heat generation.

The separators will provide greater power in high-current applications as well as having increased thermal stability with less cell degradation. The design offers reduced separator shrinkage, extended cycle life, higher bake-out and operating temperatures, and improved puncture and abuse resistance.

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