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battery separator

Bipolar lead battery organisation GreenSeal Alliance welcomes its newest member Amer-Sil

Fri, 10/08/2021 - 15:34 -- paul Crompton

Lead battery and redox flow battery separator firm Amer-Sil has joined the GreenSeal Alliance organisation, which supports the industry’s transition to lead bipolar battery production.

Amer-Sil joined the organisation because it “wants to be ready for the innovations coming to the lead acid battery” and participate in the works on the bipolar battery design, said the Luxemburg-headquartered firm’s managing director Jan Peynsaert.

Amer-Sil designs and produces micro-porous polymer/silica separators for all types of industrial lead acid batteries, and is known in the industry also as a leading gauntlet supplier.

The company joins 21 other key players within the lead battery industry with the collective goal of promoting and improving lead batteries throughout the world using GreenSeal Technology.  

Mike Everett, chairman of the Board of GreenSeal Alliance stated “Amer-Sil’s background and dedication to improve the sustainability of lead batteries will be a perfect addition to the GreenSeal Alliance. With each new industry member, the GreenSeal Alliance grows stronger, deeper and broader in skills and abilities.” 

Read more about bipolar batteries and the GreenSeal allianc’s work HERE

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Entek completes NSG deal to open door to offer PE, AGM and lithium-in battery separators

Mon, 09/06/2021 - 15:40 -- paul Crompton

Battery separator company Entek International completed the acquisition of a Japanese lead-acid battery separator firm.

Entek finalised the purchase of the majority stake in Nippon Sheet Glass’ (NSG) lead-acid battery separator business on 1 September.

The deal was first announced in May when both companies executed the relevant agreements and had to await approval by the laws and regulations in the relevant jurisdictions, including NSG’ home country Japan.

Larry Keith, CEO of Entek International, said the acquisition was an “important milestone” in the growth and evolution of the company’s global business.

The combination of manufacturing footprints and product portfolios will enable Entek to support customers around the world and produce all three primary separator technologies­­— polyethylene (PE) separator and absorbent glass mat (AGM), and lithium-ion separators— for the global energy storage industry.  

The transaction included all NSG's lead-battery separator manufacturing facilities in Japan and China for both AGM and PE

The investment provides Entek with the capacity and expanded product offerings to meet broader customer demands as well as enabling entry into new markets.

The acquisition is one of many strategic initiatives underway by the US firm, others include the expansion of the Indonesian manufacturing site, investment in specialty films at the Oregon campus, expansion of its equipment division and collaboration and investment at the Britishvolt gigafactory site in the UK.

You can read more about the deal in the latest edition of BEST magazine, available here

 
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Scientists increase lithium metal battery’s cycle life into the hundreds

Thu, 07/08/2021 - 11:51 -- paul Crompton
battery seperator using carbon

An international team of scientists has developed a method of boosting the lifetime of lithium metal batteries to “hundreds” of cycles by preventing dendritic growth.

The researchers used a separator made of an extremely thin, two-dimensional membrane made of carbon to reach more than 300 cycles of their battery.

At less than one nanometer, the separator pores are smaller than the critical nucleus size and, as such, prevent the nucleation that leads to the formation of dendrites.

Instead of forming dendritic structures, the lithium is deposited on the anode as a smooth film, which prevents the separator membrane being damaged and affecting the functionality of the battery.

The team included scientists from Friedrich Schiller University Jena in Germany, and Boston University (BU) and Wayne State University (WSU) in the US. 

The researchers report on their method in the journal Advanced Energy Materials.

Dr Antony George from the University of Jena, said: “To test our method, we recharged test batteries fitted with our Hybrid Separator Membrane over and over again.

“Even after hundreds of charging and discharging cycles, we couldn’t detect any dendritic growth.”

Associate professor Leela Mohana Reddy Arava from the WSU, said the key innovation was stabilising electrode/electrolyte interface with an ultra-thin membrane that did not alter current battery manufacturing process.

Sathish Rajendran, a graduate student at WSU, said: “The separator gets the least amount of attention when compared to the other components of the battery.

“The extent to which a nanometer thick two-dimensional membrane on the separator could make a difference in the lifetime of a battery is fascinating.”

As a result, the research team is confident their findings have the potential to bring about a new generation of lithium batteries. 

They have applied for a patent for their method.

The next step is to see how the application of the two-dimensional membrane can be integrated into the manufacturing process. 

The researchers also want to apply the idea to other types of batteries.

Image (Turchanin et al./Wiley): a) Regular battery separators with microscale porosity cause non-uniform lithium transport during the battery charge-discharge cycles resulting in needle-like growth of metallic lithium. This leads to short circuits and premature failure of lithium metal batteries. b) By introducing a carbon nanomembrane on the regular battery separator, the growth of lithium needles can be suppressed. The sub-nanometer-sized pores in carbon nanomembranes regulate the transport of lithium ions during the battery charge-discharge cycles, resulting in the deposition of a smooth film and the battery life can be increased significantly. 

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Entek MoU signals lithium-ion battery seperator partnership with UK gigafactory

Thu, 06/24/2021 - 16:27 -- paul Crompton
Entek MoU signals lithium-ion battery sepertor partnership with UK gigafactory

A memorandum of understanding (MoU) to expand a UK battery separator manufacturing supply chain has been signed between UK lithium-ion gigafactory developer Britishvolt and battery separator firm Entek.

Firming their ongoing collaboration, the MoU sets out a roadmap to use Entek’s separators in Britishvolt’s batteries with the goal of creating a scalable production of lithium battery separators in the UK.

The MoU also sets out potential investment in facilities at Entek’s battery separator plant in Newcastle-upon-tyne and a co-located facility within Britishvolt’s Blyth campus in the UK.

The deal is the foundation for a long-term separator supply agreement that will allow Entek to invest in the UK’s first lithium battery separator plant.  

Larry Keith, Entek CEO said: “We are delighted to have been selected as Britishvolt’s preferred lithium-ion battery separator partner and eager to align our objectives and investments with their transformational plans to build a 30+ gigawatt hour factory in the UK”.

Britishvolt is delighted to be entering into this non-binding aagreement with ENTEK to supply lithium-ion battery separators.

Colocation at Britishvolt’s site aims to reduce the length of the supply chain and the carbon footprint of battery production.

Entek has a long history of investing in its UK operations and is a natural partner for Britishvolt as it establishes itself as the premier Lithium battery manufacturer in the UK.  Together, ENTEK and Britishvolt are committed to the future of electrification of vehicles with products made domestically.

Earlier this year, Battery separator firm Entek signed a deal to acquire the majority stake in Nippon Sheet Glass’ (NSG) lead-acid battery separator business.

You can read more about Entek in the forthcoming BEST magazine, published in mid-July. Subscribe here to make sure you receive your copy.

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Entek expands global lead-acid and lithium battery separator reach with NSG buy-out

Mon, 05/17/2021 - 08:24 -- paul Crompton
Entek expands global lead-acid and lithium battery separator reach with NSG buy-out

Battery separator firm Entek has signed a deal to acquire the majority stake in Nippon Sheet Glass’ (NSG) lead-acid battery separator business.

The buy-out combines US firm Entek’s core know-how in material science, equipment engineering and design, along with capital, to fund future growth with NSG Group’s leadership and customer focus.

Both companies have executed the relevant agreements and plan to complete the deal in August 2021— subject to laws and regulations in the relevant jurisdictions, including NSG’ home country Japan.

NSG will hold a minority stake in— although actual percentages are not being disclosed— and appoint a director to the board of the battery separator business (BSS).

The new BSS company will own all battery separator manufacturing facilities in Japan and China for both polyethylene (PE) separator and absorbent glass mat (AGM).  

The acquisition gives Entek more than 400 million square metres of aggregate PE separator production capacity (from its sites in the US, UK, Indonesia and Japan) to support its lead-acid battery market.

That figure does not include AGM capacity (Japan and China) or the firm’s lithium separator capacity in the US, the company’s VP of global sales, Clint Beutelschies, told BEST.

The deal was made when NSG decided the best option for the BSS business was for it to be integrated with, and managed by, Entek so that it could “develop further and enhance its value for its customers”.

NSG has supplied battery separators for lead-acid batteries mainly in Asia, including manufacturing footprints in China and a strong market position in Japan.

The firms are joint venture partners in the Entek NSG Separindo PE manufacturing plant in Indonesia, on which they broke ground in 2019.

In 2019, Entek announced plans to double the capacity of the Indonesian plant to 90 million square metres by the close of this year.

 
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Lead battery separator firm Microporous welcomes new director of sales

Fri, 11/06/2020 - 09:49 -- paul Crompton

Lead-acid battery separator firm Microporous has announced Bryan Allen as its new director of sales, North America. 

Allen will contribute to the growth of Microporous in North America, with the remit of increasing its market share by penetration into new accounts and promoting sales of the company’s existing and new developmental products.

In his new position, Allen will directly report to Claudia Lorenzini, VP, sales and marketing.

Allen brings significant experience to the position, including numerous roles related to strategic account management, design engineering and project management. 

Before joining Microporous, he was senior director of sales and marketing for leading battery manufacturers Leoch and the former Exide Technologies, and French energy firm Schneider Electric.

Traditional Indonesian ceremony marks start of Entek's battery separator expansion plans in Asia

Wed, 11/13/2019 - 14:28 -- paul Crompton

Lead and lithium-ion battery separators firm Entek International has broken ground on its Indonesian plant as the company and partner NSG expands capacity of battery separator production in the region.

Entek-NSG, a joint venture with the Japan-based AGM and PE seperator material supplier NSG, began construction with a ribbon cutting and traditional prayer ceremony. 

The firms aim to double output capacity by 2021 to more than 90 million square metres at the plant, with commissioning of the new line scheduled for Q1 of 2021. 

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Asahi Kasei shareholders agree deal

Fri, 05/29/2015 - 11:08 -- paul Crompton
Asahi Kasei shareholders agree deal

Shareholders at Lithium-ion and lead-acid battery separator firm Polypore International have approved the sale of the firm for around $3.2billion.

Approval for the deal - first announced in February - was obtained during a meeting on May 12 and paves the way for the deal to go through.

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Shenzhen Senior Technology licenses LG Chem SRS Li-ion battery separator technology

Fri, 03/13/2015 - 14:26 -- paul Crompton
Shenzhen Senior Technology licenses LG Chem SRS Li-ion battery separator technology

China-based Shenzhen Senior Technology, a manufacturer of microporous separators, has licensed LG Chem’s Safety Reinforced Separator (SRS) technology.

Under the agreement, Senior has gained rights to use the SRS technology, which uses a ceramic coating on separator substrates to improve thermal deformation resistance and mechanical strength.

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