This paper focuses on developing a step-by-step calibration method to build an electrochemical performance model in GT-Autolion with a limited test data set which does not require extensive development time. Two lithium-ion cells are taken into account: one with usual NMC/graphite chemistry and another with a blended cathode consisting of two types of active materials. The cell performance models are validated against test data for prediction accuracy.

High nickel cathode materials and silicon anodes are in the focus of OEMs these days to increase EV range and to reduce battery cost. As cathode material demand rises, phosphates are in discussion again due to their benefits in sustainability. Reviewing the materials landscape under consideration of recent published research reveals some alternative pathways that should be considered.

Lithium ion batteries (LIBs) have transformed the consumer electronics (CE) sector and are beginning to power the electrification of the automotive sector.  The opportunities and challenges for LIBs in the automotive sector are assessed in terms of energy, life, cost, safety, and fast charge capability.  A comparison of current LIB and potential future Lithium Metal Solid State Batteries against USABC goals is performed.

Battery cell faults dominated the news in 2020 – many tied to tier-1 suppliers – triggering recalls and costing billions in replacement costs, fines, lawsuits and collateral brand damage. The timing couldn’t have been worse. Just as OEMs were pledging huge investments to transition away from ICE’s, early-adopter consumers were being told not to park their car in the garage for fear they’d explode. It’s time for OEMs to get proactive about battery development, testing, and quality assurance. In our talk, we review how a comprehensive, data-analytics approach can help OEMs and suppliers maximize battery reliability, safety and lifespan. We’ll discuss the key factors associated with qualification: to select the best batteries for your use-case; production QA: to ensure that only good batteries make it into vehicles; and after-sales: to proactively surface opportunities for early service intervention.

The automotive industry is at a tipping point when it comes to electrification, with many OEMs introducing increasingly optimistic forecasts for the future market share of electric vehicles. However, for EVs to achieve mass-market penetration, new powertrains must achieve a reasonable balance between driving range, power, charge rate, safety and cost. This requires optimization of automotive battery packs down to the cell, electrode and materials level. A key driver of performance and cost at the materials level is the cathode active material chemistry.  To continue the progress towards higher energy density and lower cost cells, BMW maintains a high level of activity in cathode materials research.  Together with our partners in academia, government, and industry, we seek to drive innovation across the spectrum of next-gen materials.   This presentation will outline the opportunities and limitations of various cathode material concepts from a car manufacturer’s point of view – including high-Nickel, Mn-rich, and low-cost options as well as corresponding electrolyte developments. Key challenges will be addressed with examples from BMW research projects.

Tremendous progress has been made developing/commercializing Li-based batteries for automotive. With superlative energy density and increasingly competitive cost – coupled with regulatory trends world-wide, Li-based batteries have gained traction in all auto applications. With my experience at A123Systems, Quantumscape, and now Conamix, I will review the history of Li-based batteries since the turn of the century, current events and trends and make some follow-on projections of things to come. 

Data-driven methods for battery lifetime prediction are attracting increasing attention. While advanced deep learning methods offer high performance with minimal feature engineering, simpler “statistical learning” methods often achieve comparable performance while also providing physical and statistical interpretability. In this talk, I discuss statistical learning approaches for simple, accurate, and interpretable data-driven battery lifetime prediction. These approaches can be used to quickly train a new dataset and to benchmark the performance of advanced methods.

Recent EV combustion arouses people's concern on the EV battery issues and hence call for better EV battery solutions. As such, solid-state batteries may stand out in the future due to its safety and mile range advantages. During the speech, Lisa will set forth the progress, advantages, and future versions of solid-state battery technology. Lisa will also share with us the highlights of Prologium's solid-state battery.

In 2020, Chinese electric vehicle market is expected to still reach 1.2 million sales annually, even under such influence of the pandemic, maintaining its leading position in the world’s major xEV developing countries. This presentation will outline the trend of battery technology changes in the Chinese electric vehicle market in the next five years, including the application and related technology of high-nickel 811 battery, the re-growth of LFP materials, how CTP/CTC technology affects OEMs’ design and decision making, and the development of battery materials technology changes till 2025.

Ultium 1.0 cell has been developed as a platform cell for various GM EVs, to meet cost, energy, performance, safety and timing target. The cell development has been performed through DFSS DOE to understand impact and interactions of the main design variables. The cell will be mass-produced in Ultium Cells LLC (Joint venture between GM and LGC). GM's future cell development strategy also will be briefly introduced.

Rechargeable Li-S batteries are an enabler for electric mobility as they possess exceptional and unique properties. Bloomberg estimates that electric vehicles (EVs) sales will represent nearly half the world’s transportation by 2040, driving the demand far beyond the capabilities of lithium-ion. NexTech extremely high specific energy, very low-cost, advanced Li-S batteries have the potential to transform the electric transportation market by making EVs affordable, safe and convenient for the masses.

In this talk, firstly, I will introduce a series of Na-Cu-Fe-Mn-O cathodes on the basis of our finding of electroactivity of Cu²⁺/Cu³⁺ redox couple in Na containing layered oxides ^6-8 and Na_x[Li_1-yMn_y]O₂ cathode based on reversible oxygen redox couple^19,20.  Secondly, I will present a series of carbon anodes from anthracite and biomass^14-18. Thirdly, prototype Na-ion cells with capacity of 1-12 Ah were fabricated and their electrochemical and safety performance of Na-ion cells will be presented.