EEStor Discloses Lead-Free Relaxor Dielectric Test Results with Relative Permittivity of over 30,000

Toronto, Ontario, CANADA

  • Glass - CMBT layers are non-toxic lead-free relaxor dielectric
  • Relative permittivity over 30,000 at low voltage and over 10,000 at above 1 volt per micron
  • Relaxor dielectric implies high return on energy stored
  • Glass - CMBT layers feature low loss with both high self-discharge time constants and low dissipation factor
  • Glass - CMBT layers result in well-balanced, high performance, low cost, non-toxic, general and high voltage capacitor dielectric material

TORONTO, Ontario and AUSTIN, Texas, March 01, 2018 (GLOBE NEWSWIRE) -- EEStor Corporation (TSXV:ESU), developers of  high energy density, solid-state capacitors, today announced completion of independent third party testing to characterize layers of dielectric materials (electric insulator) made from its Composition Modified Barium Titanate (CMBT) ceramic powder using specialized glass as the binder.  Testing by Intertek, MRA Labs and Radiant Technologies have shown EEStor’s glass-CMBT to be a relaxor dielectric with a relative permittivity over 30,000.

Key features of EEStor’s relaxor include a high relative permittivity and low residual polarization, giving EEStor's dielectric the ability to both store higher amounts of energy during charging and, unlike non-relaxor barium titanate, return most of that energy during discharge.  Additionally, the tested layers relative permittivity is shown to stay above 10,000 at a field of over 1 volt per micron.  This permittivity rivals, and in most cases, surpasses that of, lead based relaxors. 

 “Lead based materials such as PZST, PLZT, PLZ dominate the modern electronics market by delivering larger energy storage density. However, the toxicity of lead is causing serious global environmental problems.”1 As a result, lead-free environmentally friendly materials are growing in popularity in the electronics industry, while lead based materials are increasingly banned in countries around the world.

The tested glass-CMBT layers also exhibited commercial level efficiencies, self-discharge time constant in the 2,000 to 4,000 second range at fields around 1 volt per micron. These impressive time constants, combined with Dissipation Factors in the 2% range at 1 KHz, and EEStor’s low cost CMBT, demonstrates a well-balanced, high performance, broad purpose, non-toxic high voltage dielectric. EEStor continues to produce devices that demonstrate the exceptional characteristics of EEStor’s CMBT.

The independent third-party testing reports and a White Paper exploring in greater detail the relaxor nature of EEStor dielectrics is available using the following link and have also been  filed on SEDAR at

About EEStor Corporation

EEStor Corporation's mission is to be the provider of leading edge electrical energy storage and related technologies. EEStor operates on the principle and belief that a fundamental breakthrough in energy storage will be the catalyst for positive environmental and economic change globally. EEStor’s current business strategy is focused on licensing opportunities across a broad spectrum of industries and applications building on its recent technology achievements related to solid-state, high energy density capacitors.

The Company’s success depends on the commercialization of its technology.  There is no assurance that EEStor will be successful in the completion of the various enhancement phases underway to warrant the anticipated licensing opportunities in the technology. Readers are directed to the "Risk Factors" disclosed in the Company’s public filings.

Forward-looking Statements

Certain statements and documents referred to in this release, other than statements of historical fact, may include forward-looking information that involves various risks and uncertainties that face the Company; such statements may contain such words as "may", "would", "could", "will", "intend", "plan", "anticipate", "believe", "estimate", "expect" and similar expressions, and may be based on management's current assumptions and expectations related to all aspects of the power and energy storage industries, consumer demand for energy storage products and solutions and the global economy. Risks and uncertainties that may face the Company include, but are not restricted to: EEStor may not be able to replicate test results in mass produced commercial products; the EEStor capacitor and energy storage technology may not be successfully commercialized at all, in a manner providing the features and benefits expected while under development, or on a timely basis or the Company may not be able to successfully incorporate this technology into its current or proposed products or the products of others; steps taken by the Company to protect its proprietary rights may not be adequate or third parties may infringe or misappropriate the Company's proprietary rights; the Company has a history of losses from operations and may not be able to obtain financing, if and when required or on acceptable terms due to market conditions or other factors, to fund future expenditures for general administrative activities, including sales and marketing and research and development, expansion, strategic acquisitions or investment opportunities or to respond to competitive pressures; competitors may develop products which offer greater benefits to consumers, have greater market appeal or are more competitively priced than those offered by the Company; the Company may be exposed to product liability claims which exceed insurance policy limits; the Company is dependent on the ability and experience of a relatively small number of key personnel; new products introduced by the Company may not be accepted in the market or to the extent projected; new laws and regulations may be enacted or existing ones may be applied or governmental action may be taken in a manner which could limit or curtail the production or sale of the Company's products; and the Company may be negatively affected by reduced consumer spending due to the uncertainty of economic and geopolitical conditions.

These risks and uncertainties may cause actual results to differ from information contained in this release, when estimates and assumptions have been used to measure and report results. There can be no assurance that any statements of forward-looking information contained in this release will prove to be accurate. Actual results and future events could differ materially from those anticipated in such statements.

These and all subsequent written and oral statements containing forward-looking information are based on the estimates and opinions of management on the dates they are made and expressly qualified in their entirety by this notice. Except as required by applicable laws, the Company assumes no obligation to update forward-looking statements should circumstances or management's estimates or opinions change. Readers are cautioned not to place undue reliance on any statements of forward looking information that speak only as of the date of this release. Additional information identifying risks and uncertainties relating to the Company's business are contained under the heading "Risk Factors" in the Company's filings with the various Canadian securities regulators which are available online at

Ian Clifford                                                                
Chief Executive Officer                                                        
EEStor Corporation                                                  
Tel. 416-535-8395 ext. 3                                                        

Mark Olson
Senior Vice President
Tel. 512-507-1993        

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

1. Enhanced Energy Storage Properties of Linbo3 Modified BNT BCT Lead Free Piezoceramics  , International Journal of Advances in Science Engineering and Technology, ISSN: 2321 9009, Vol 4, Iss 3, Spl. Issue Sep 2016