Cambridge EnerTech’s

Battery Management Systems

April 1-2, 2020


As the need for increased capacity and lifespan of lithium-ion batteries continues to grow, creating a safe and reliable battery management system is one of the biggest challenges facing battery engineers. The Battery Management Systems conference program, part of this year's International Battery Seminar & Exhibit, will bring together top scientists as they discuss how to extend the life of their battery packs and use battery management systems to maintain storage capacity and ensure that batteries run within safe conditions. High-level cell engineers and R&D scientists will discuss monitoring state-of-health, state-of-charge, designing internal battery pack topology, new monitoring methods, balancing mechanisms, and simplifying circuitry to develop long-lasting and reliable batteries.

Final Agenda

Wednesday, April 1


1:45 PLENARY KEYNOTE SESSION: Organizer’s Opening Remarks

Craig Wohlers, Executive Director, Conferences, Cambridge EnerTech

1:50 An Unavoidable Challenge for Ni-Rich Positive Electrode Materials for Li-Ion Batteries

Jeff Dahn, FRSC, PhD, Professor of Physics and Atmospheric Science, NSERC/Tesla Canada Industrial Research Chair, Canada Research Chair, Dalhousie University

 

 

2:20 The New NFPA 855 Standard for Installation of ESS

Celina Mikolajczak, Vice President, Battery Technology, Panasonic Energy of North America

 

 

 

2:50 Refreshment Break in the Exhibit Hall with Poster Viewing

USING BMS TO IMPROVE SAFETY

3:45 Organizer’s Opening Remarks

Victoria Mosolgo, Conference Producer, Cambridge EnerTech

3:50 Chairperson’s Remarks

Craig Arnold, PhD, Director, Princeton Institute for the Science and Technology of Materials, Princeton University

3:55 Effects of Local Phenomena on Battery Degradation and Safety

Craig Arnold, PhD, Director, Princeton Institute for the Science and Technology of Materials, Princeton University

Here we discuss effects in Li-ion batteries in which local nonuniformities in battery construction or mechanical stress can couple into the electrochemical processes of the system and lead to accelerated decay and safety concerns. We present the relevant mechanisms and discuss methods of mitigating these effects in real systems.

4:25 A Frequency Response Interpretation of Transfer Function Models for Porous-Electrode Lithium-Ion Cell Internal Variables

Gregory Plett, PhD, Professor, Electrical and Computer Engineering, University of Colorado, Colorado Springs

Frequency responses computed from transfer functions convey important information about system dynamic behavior. Applied to batteries, we normally consider electrochemical impedance spectroscopy (EIS), a spectral characterization of cell output voltage to input current. This talk expands the standard analysis by first presenting a full-order (pseudo-2D) model incorporating a double-layer effect and then derives closed-form transfer functions enabling the calculation of individual frequency responses for internal electrochemical variables.

4:55 A Model Predictive Control (MPC) Approach to Power Limit Estimation Using a Coupled Electro-Thermal Empirical Model and a Nonlinear Kalman Filter

Scott Trimboli, PhD, Assistant Professor, College of Engineering & Applied Sciences, University of Colorado, Colorado Springs

Electric vehicle energy storage systems using lithium-ion batteries require constant monitoring to ensure safe and reliable performance. Limits on applied current, cell voltage and temperature are essential to meeting these objectives. This presentation describes a novel application of model predictive control and a sigma-point Kalman filter to produce optimal estimates of charge/discharge power, which adhere to constraints on key problem variables to ensure safe and efficient operation.

5:25 Dinner Tutorial Registration*


5:45 - 8:00 Dinner Tutorials*

*Best Value or separate registration required for Tutorials.

8:00 Close of Day

Thursday, April 2

7:30 am Registration Open

7:45 Interactive Breakout Discussion Groups with Continental Breakfast

8:45 Session Break

IMPROVING SOH AND SOC

9:00 Chairperson’s Remarks

Joshua Lamb, PhD, Principal Member of the Technical Staff, Power Sources R&D, Sandia National Laboratories

9:05 The Scalability of Accelerating Rate Calorimetry (ARC) with State of Charge and Capacity

Joshua Lamb, PhD, Principal Member of the Technical Staff, Power Sources R&D, Sandia National Laboratories

This work examines the results of accelerating rate calorimetry testing on different lithium-ion cathode chemistries (LCO, NCA, NMC, LFP), different formats (18650, pouch, large-format cylindrical), and states of charge to understand how ARC results are impacted by both energy density and total energy. Also studied is how thermal runaway is impacted by energy in general, looking at both the total energy release during thermal runaway, as well as the peak heating rates observed.

9:35 Towards Next Generation of Battery Models

Dirk Mohr, PhD, Professor, Mechanical Engineering, MIT

This presentation shows the latest computational models and testing techniques developed by an Industrial Consortium headed by MIT’s Impact and Crashworthiness Lab, including: i) the development of anisotropic mechanical models of battery cells; ii) machine learning-based models for predicting battery deformation and failure; and iii) results from in situ tomography observation during battery crushing.

10:05 Understanding and Formulations of Material Selection for Battery Pack Designs

Terence Kearns, Business Development Manager, WEVO-CHEMIE GmbH

WEVO-CHEMIE GmbH, years of research and amassed data from customers, applications and industry stakeholders, has compiled a simpler guide for material selection. It explains the key attributes and boundaries of each chemistry, includes considerations for processing and the consequent disparate influences, formulated into an easy-to-understand engineering format.

10:20 Sponsored Presentation (Opportunity Available)

10:35 Coffee Break in the Exhibit Hall with Poster Viewing

PREVENTING DEGRADATION

11:20 A Method to Enhance System Peak Power while Mitigating Battery Degradation

Naoki Matsumura, Senior Technologist, Intel Corporation

Many computing devices that use batteries can enhance system performance by peak-power mode. In this mode, system extracts higher current from a battery for a short period. While this makes computing speed faster, arbitrary peak power may cause battery degradation. This session talks about a method to enable peak power mode while mitigating battery degradation.

11:50 Technical Excerpts from the Energy Storage System Evaluation and Safety Consortium

Bapi Surampudi, PhD, Principal Engineer, Southwest Research Institute

12:20 pm An Analysis of Phase-Specific Aging of Li Batteries

Guillaume Thenaisis, PhD, Post-Doc, Electrical Engineering, KAIST

A study of the aging of a lithium battery phase by phase under galvano-static condition shows a strong variation in the speed of capacity loss of the battery between different phases.

12:50 Walking Lunch in the Exhibit Hall with Poster Viewing or Plated Lunch (Sponsorship Opportunity Available)

1:50 Dessert Break in the Exhibit Hall with Poster Viewing

CHARGING & TESTING

2:20 Chairperson’s Remarks

Lu Zhang, PhD, Chemist, Energy Storage, Argonne National Laboratory

2:25 Coding the Intuition: A Data-Driven Approach to Probe the Stability of Dialkoxy Benzene-Based Catholyte Molecules for Nonaqueous Redox Flow Batteries

Lu Zhang, PhD, Chemist, Energy Storage, Argonne National Laboratory

The stability of redox active molecules is a paramount property that dramatically affects the cycling performance in redox flow batteries. Computationally, it requires a huge amount of resources to exhaustively iterate all the possible degradation pathways in order to estimate the stability of active species, such as radical cations. QSAR, or quantitative structure–activity relationship, provides an interesting approach to correlate chemical structures and properties based on the idea that property changes are all coming from structure modifications.

2:55 Low-Resistance Negative Electrodes for Fast-Charging Lithium-Ion Batteries

Martin Ebner, PhD, CEO, Battrion AG

We present a novel fabrication technology that reduces the resistance of negative electrodes of lithium-ion batteries (LIBs). Fast charging of high-energy density LIBs is limited by increased degradation brought about by lithium plating on the negative electrode. In this talk, we investigate how reduced negative electrode resistance leads to shorter charging time without compromising energy density, safety, and lifetime.

3:25 Battery Module/Pack Testing: Current Challenges & Opportunities

Julie Tran, NH Research Inc.

Battery module/pack testing is critical across all stages of battery R&D and production, but traditional methods of battery testing are an extremely time-consuming and costly challenge. Today, testing requires more flexibility and scalability to meet the growing demands of electrification and high performance. This presentation will equip battery manufacturers with cutting-edge technologies, trends, and test solutions for battery module/pack testing.

3:55 Presentation to be Announced

4:25 Networking Refreshment Break


4:45 PLENARY KEYNOTE SESSION: Organizer’s Opening Remarks

Craig Wohlers, Executive Director, Conferences, Cambridge EnerTech

4:50 An Intrinsically Flexible Li-Ion Battery for Wearable Devices

Avetik Harutyunyan, PhD, Chief Scientist and Research Director, Materials Science, Honda Research Institute

We demonstrate bendable, twistable, and foldable Li-ion rechargeable pouch cell battery that approaches the ceiling of gravimetric energy density imposed by the lithium storage material. Mentioned performances become a possibility because of the elimination of metal current collectors, binders, and additives from the electrodes.

5:20 PANEL DISCUSSION: Overcoming the Constraints of Investment, Innovation and Demand to Achieve Success in Battery Applications

Moderator:

Brian Barnett, PhD, President, Battery Perspectives LLC

6:05 Close of Conference

* The program is subject to change without notice, due to unforeseen reason.

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Update History
2019/12/04
Agenda updated
2019/11/25
Sponsor updated
2019/10/28
Sponsor updated
2019/10/21
Agenda updated



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