Knowledge HUB
Insights from battery experts
Explore the latest trends, research papers, blog posts and more. Join us as we cover hot topics, debate the future of tech and share trending stories.
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Insights
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Article
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April 10, 2024
TWAICE Vision Summit 2024: Battery incidents under scrutiny
Lakshmi Srinivasan explains the causes of energy storage system failures and fires
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April 10, 2024
TWAICE Vision Summit 2024: Why BESS monitoring is crucial
Miguel Gfall explains how the data collected by the BESS can be used to ensure safe operation.
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April 10, 2024
TWAICE Vision Summit 2024: Emission-free charging at no cost
Thomas Raffeiner explains why batteries are the best environmentally friendly option for V2G flexibility
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April 8, 2024
Improving the accuracy of battery models using the open-circuit-voltage (OCV) curve
The OCV is a key element in electric models of lithium-ion batteries and describes the thermodynamic voltage at equilibrium. In this article, we describe how considering OCV aging is vital when designing and manufacturing electric cars.
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February 18, 2024
Five surprising facts about batteries
International Battery Day is held on February 18, the birthday of the inventor of the modern battery, Alessandro Volta. To help mark the occasion, we’ve compiled five astounding facts about batteries.
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December 15, 2023
BMS vs Analytics
The lack of a standardized approach on how State of Health (SoH) should be calculated and the fact that on-board battery management systems (BMS) alone are not sufficient in assessing battery safety are highlighting the need for battery analytics.
Whitepaper
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August 9, 2024
Beyond Lithium: Explore the potential of sodium-ion batteries with TWAICE’s new battery simulation model
As the demand for energy storage continues to surge, researchers and engineers are turning their attention to sodium-ion batteries as a promising alternative to lithium-ion. In this whitepaper, we explore the growing demand for sodium-ion technology and explain how TWAICE’s sodium-ion battery simulation model can help engineers gain initial insights into this new technology.
Whitepaper
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August 6, 2024
Battery Analytics for ESS: Template Text for RFPs, RFIs & other contractual instruments
Battery analytics adoption in energy storage systems (ESS) is rapidly increasing. In this document, we provide ready-to-use text that can be assimilated into requests for proposals (RFPs), requests for information (RFIs), and other contracting instruments to reduce or eliminate any friction of battery analytics implementation.
Whitepaper
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March 25, 2024
LFP in energy storage
Lithium-ion batteries play an essential role in the transition to renewable energies and in generating electricity from more reliable and sustainable technologies. NMC has been the widely used technology for the past years, but now LFP is increasing in popularity due to reasons such as cost and safety advantages. However, LFP comes with challenges, particularly regarding accurate state estimations.
Whitepaper
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March 25, 2024
Batteries and their Global Warming Potential: a lifecycle view
Lithium-Ion-Batteries are a key technology for green energy, mobility, and for this reason a key technology to mitigate climate change. However, batteries have a significant environmental impact. This impact is created along various steps in the lifecycle, e.g. during the extraction of raw materials or production. This white paper will explore the various stages of a battery's life cycle and how they contribute to its overall Global Warming Potential (GWP).
Whitepaper
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March 11, 2024
Battery Energy Storage System Safety: How to Avoid the Worst Case Scenario
The lithium-ion battery market is growing fast, meaning safety incidents are likely to get more and more frequent. Battery analytics helps companies reduce the risk of battery energy storage system fires.
Whitepaper
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January 9, 2024
Improve the safety, availability and performance of your battery energy storage systems
Battery energy storage systems are essential for accelerating the shift towards green energy and an integral part of the electricity grid across the globe. Their safety, availability and performance is more important than ever.
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Research Paper
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September 17, 2024
Modeling Particle Versus SEI Cracking in Lithium-Ion Battery Degradation
This work identifies and systematically compares three different SEI interaction theories, and applies them to experimental degradation data from a commercial lithium-ion cell. It shows that SEI delamination without any cracking of the active particles, and SEI microcracking, where cycling only affects SEI growth during the cycle itself, are both unlikely candidates.
Research Paper
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June 11, 2024
Insights from EPRI's BESS failure incident database
This report is intended to address the failure mode analysis gap by developing a classification system that is practical for both technical and non-technical stakeholders.
Research Paper
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March 11, 2024
Non-destructive electrode potential and open-circuit voltage aging estimation for lithium-ion batteries
In this publication we extend a state-of-the-art electrode open circuit potential model for blend electrodes and inhomogeneous lithiation. We introduce a bi-level optimization algorithm to estimate the open parameters of the electrode model using measurements conducted on the full-cell level with state-of-the-art testing equipment.
Research Paper
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December 8, 2023
Mechanistic cycle aging model for the open-circuit voltage curve of lithium-ion batteries
Cycling lithium-ion batteries causes capacity fade, but also changes the shape of the open-circuit voltage (OCV) curve, due to loss of active material (LAM) and loss of lithium inventory (LLI). To model this change, we recently proposed a novel empirical calendar aging model that is parameterized on component states of health (s) instead of capacity fade only.
Research Paper
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June 9, 2023
Mechanistic calendar aging model for lithium-ion batteries
In this work we present a novel mechanistic calendar aging model for a commercial lithium-ion cell with NCA cathode and silicon-graphite anode. The mechanistic calendar aging model is a semi-empirical aging model that is parameterized on component states of health, instead of capacity.
Research Paper
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April 12, 2023
Measurement Approaches for Thermal Impedance Spectroscopy of Li-ion Batteries
Battery performance, lifetime and safety are highly dependent on temperature. With the recent high demand for power capabilities, heat management has become increasingly relevant.