Exclusive rights holder · International patent

International Patent WO2024022569

Method for Experimental Determination of Battery Parameters and Their Use

We hold the exclusive rights to WO2024022569, which protects a novel method for precise measurement, analysis and optimization of battery system performance. It enables direct measurement of one-way charging and discharging efficiencies during real operation, for more accurate control, longer lifetime and higher system efficiency.

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Patent: WO2024022569
Scope: International (WIPO)
Focus: One-way efficiency & characteristic curves
Status: Published · Additional patents pending

first and only

We are the first and only company with patented technology that enables direct experimental determination of one-way charging and discharging efficiencies during real battery operation. Conventional systems rely on round-trip efficiency only. Our method looks at charging and discharging separately.

what it changes

Significantly improved battery control

Knowing the real one-way efficiencies gives detailed insight into internal battery behaviour in both directions. That insight translates directly into better operating decisions and, for systems on day-ahead energy markets, into better financial performance.

Extended lifetime

Optimized operating conditions, reduced degradation and improved long-term reliability.

Higher usable energy

More effective capacity from the same cells.

Higher efficiency

Increased system efficiency and reduced energy losses.

Better economics

Higher return on investment and optimized performance on day-ahead energy markets.

technology overview

Measurement plus mathematical optimization

Our patented method combines experimental measurement and advanced mathematical optimization to accurately determine battery characteristics under real operating conditions. The resulting characteristic curves are a true representation of battery behaviour during operation, enabling accurate modelling, monitoring and control.

01 - Measure

Round-trip efficiencies are measured across multiple charging and discharging C-rates / P-rates.

02 - Solve

A nonlinear optimization problem is solved to determine the one-way efficiencies.

03 - Generate curves

Precise charging and discharging characteristic curves are generated.

04 - Determine flows

The actual current and power flow into and out of the battery is determined.

Fig. 1 - One-way charging and discharging energy efficiencies versus P-rate for LFP, NMC, LCO and LTO cells (values illustrative, from measurements).

Fig. 2 - Charging characteristic from the patent: measured samples, interpolation, extrapolation and the ideal 100 % line at constant temperature.

key parameters

What the method determines

Precise determination and continuous monitoring of the critical battery parameters. This enables smarter battery management, improved safety, optimized performance and maximum economic value.

State of Charge (SOC)

How much charge is in the battery right now.

State of Energy (SOE)

How much usable energy is actually available.

State of Health (SOH)

How the battery has aged compared to new.

Charge & energy capacity

Real capacity under real operating conditions.

Real efficiencies

True charging and discharging efficiencies, separately.

Degradation behaviour

Internal performance characteristics and how they change over time.

applications

Particularly valuable for battery energy storage systems, grid-connected storage and energy arbitrage, renewable integration, industrial and utility-scale batteries, electric mobility, and battery diagnostics and management. Above all for systems operating in day-ahead energy markets, where precise efficiency optimization directly improves financial performance.

intellectual property & partnerships

Open to partnerships

Our patent portfolio provides strong protection for this technology, with additional patents currently pending. We actively welcome strategic partnerships, technology integration and commercial cooperation built on it.

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Research collaboration

Joint research with academic partners such as FER, University of Zagreb.

Strategic partnerships

Long-term cooperation with manufacturers, integrators and operators.

Technology integration

Integrate the method into existing BMS, EMS or diagnostic platforms.

Commercial cooperation

Commercial and industrial projects built on the technology.

official documentation

View full patent on WIPO Patentscope

The full patent documentation is available on the World Intellectual Property Organization (WIPO) website. Contact us to learn more about our patented technology, or partnership opportunities.

International Patent WO2024022569

Significantly improved battery control

Measurement plus mathematical optimization

What the method determines

Open to partnerships

Patented technology. Open to partnerships.