Battery Pack Thermal Propagation Control Strategies in Electric Vehicles Using SpreaderShield™ Flexible Graphic

An emerging trend over the last two to three years has been to add layers of thermal insulation and flame/gas impingement barriers between the pouch and prismatic format cells in a battery pack to prevent thermal propagation. This passive thermal management solution has been shown to effectively prevent propagation without adding excessive weight to the battery. The obvious downside of this method is that the battery cells are surrounded by insulation, and there is no easy path for the internal heat of the cells to spread to the environment outside of the pack. How do you fix the problems caused by using an insulation-only strategy? It’s simple: Add NeoGraf Solutions’ SpreaderShield™ thin, flexible, and lightweight graphite heat spreader to the battery pack. [...] Learn More

GrafGuard® Expandable Graphite Systems Help Meet ASTM E-84 Testing Requirements

ASTM E-84 is the standard test method for assessing the surface burning characteristics of building products. A new white paper from NeoGraf Solutions, “GrafGuard® Expandable Graphite Systems Help Meet ASTM E-84 Testing Requirements” discusses how GrafGuard® expandable graphite expands into a charred intumescent foam when exposed to the heat or flame, protecting the substrate and helping to pass the ASTM E-84 requirements. Minimizing both the smoke development and flame spread maximizes the potential flame spread index classification of the material. [...]Learn More

By |2024-07-02T17:15:18+00:00July 2, 2024|GrafGuard Media, Science|0 Comments

Bringing the Thermal Management Methods of Consumer Electronics to Transportation Batteries Using SpreaderShield™ Flexible Graphite

In many early battery-powered electric vehicles, cell temperatures were controlled by aluminum. It was a time-tested thermal management material and it could take on some of the structural duties of the battery pack. Battery pack designers recognized aluminum’s drawbacks and began looking for alternative thermal management materials. To spread the same amount of heat as an aluminum plate, NeoGraf Solutions’ SpreaderShield™ flexible graphite is only half of the thickness and one-third of the weight. […..] Learn More

GrafGuard® Expandable Graphite: A Safer Choice for Fire Protection

Protecting people and property from fire is crucial, and fire retardants play a vital role in achieving this goal. While various fire retardants exist, melamine-based options raise concerns due to their EU classification as substances of very high concern (SVHC) in the REACH regulations. GrafGuard® expandable graphite from NeoGraf Solutions is a safe and effective replacement for melamine-based fire retardants […..]Learn More

Helping the Hydrogen Fuel Cell Industry with Fuel Cell Bipolar Plate Design Assistance

The fuel cell industry is a rapidly increasing market segment and well poised to achieve $7.2 billion by 2030. The primary industries that are driving the increased demand for fuel cell applications include automotive, stationary and supplemental power, and portable electronics. [...]Learn More

By |2024-01-03T21:03:35+00:00January 2, 2024|GrafCell Media, Science, Science – 2024|0 Comments

High-Performance Graphite Thermal Management Solutions Increase Battery Performance

In order for battery powered transportation to become fully viable in the near future, energy density of the battery pack must increase. The optimal solution is to use large surface area pouch cell batteries packed tightly together to form highly energy dense modules. NeoGraf Solutions’ has produced a new video that shows unique an-isotropic arrangement of the high conductivity graphene layers in their SpreaderShield™ graphite. It illustrates how the material prevents battery hot spots, maintaining allowable temperatures and restricts transferring the heat to adjacent battery cells with the thinnest and lightest form-factor possible. [...]Learn More

Thermal Propagation Control Strategies in the Electric Vehicle Industry Using SpreaderShield™ Flexible Graphite

When it comes to safety in an Electric Vehicle (EV), the most important aspect is controlling the massive amount of energy stored in the battery pack. To help with this, significant advances have been made in cell design and battery management systems (BMS). However, even with these advances, the possibility of a single-cell failure is always present. SpreaderShield™ flexible graphite heat spreaders are often used as the thermal management material in high-performance battery packs where a small and lightweight form factor is desirable. [...]Learn More

Polystyrene Insulation R-value Enhancements Using Graf+ Graphite Powder & Graf-X Graphene Nano-Platelets

The building and construction market utilizes many different types of insulation to meet or exceed building standards throughout the world. One of the hallmarks to a well-designed building is the energy efficiency of the building as a system. A key component of the energy efficiency system is the insulation selected. This white paper explores how Graf+® graphite powder and Graf-X™ graphene nanoplatelets revolutionize polystyrene insulation, one of the most cost-effective energy efficiency systems.Learn More

By |2023-06-15T16:22:41+00:00June 15, 2023|Graf-X Media, Graf+ Media, Science|0 Comments

Thermal Enhancements Using Graf+ Graphite Powders & Graf-X Graphene Nanoplatelet (GNP) Additives

This paper aims to provide readers with a comprehensive understanding of NeoGraf Solution's Graf+® micronized graphite powders and Graf-X™ graphene nanoplatelets and their impact on thermal conductivity properties in foam materials. The following pages offer an overview of the foam types discussed in this paper, as well as an explanation of thermal conductivity and how NeoGraf powders enhance the thermal performance of these foams. Learn More

By |2023-06-15T16:22:36+00:00June 15, 2023|Graf-X Media, Graf+ Media, Science|0 Comments

Automotive Transition to EV’s Creates New Challenges and New Opportunities

The EV space is developing at an accelerated rate, and it is critical to create safe and reliable transportation. This development creates challenges and opportunities for OEMs and Tier 1s to smoothly and successfully make the transition to EV. NeoGraf Solutions remains committed to this transition in the transportation industry.Learn More

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