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Earlier sources: Battery Storage
This energy thread follows battery storage through original research, public projects, and source reports. Read the evidence below to see which developments are represented in SYMTRI’s archive.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗147 classified signals in the fourteen-day window. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- OpenAlex · Published · First archived
Stability assessment of abandoned salt caverns for compressed air energy storage – a study based on true triaxial mechanical test ↗
The utilization of abandoned salt rock caverns for energy storage has emerged as a novel and promising approach. Relying on a CAES project in salt rock in Feicheng, Shandong Province, a series of true triaxial mechanical experiments were carried out on overburden, reservoir and interlayer rock, and the mechanical parameters consistent with the actual engineering conditions were obtained. Furthermore, based on stratigraphic characteristics and three-dimensional seismic data, a three-dimensional mechanical model of abandoned salt cavern group considering the effect of intermediate principal stre…
- arXiv · Published · First archived
Boundary-accessible work in a collision-charged topological quantum battery ↗
Quantum batteries store energy in nonequilibrium quantum states. The ergotropy sets the work extractable by an arbitrary global unitary, but a device usually exchanges energy through a single local port. It remains unclear how much stored work such a port can deliver, and whether topological edge modes help. We study a dimerized spin chain of Su-Schrieffer-Heeger (SSH) type. Excited two-level ancillas charge it at one end by repeated collisions, and an initially empty two-level load discharges it at the same site. An exact free-fermion mapping yields a bound on the load work for all number-con…
- Hacker News · Posted on Hacker News · First archived
Replacing the battery in my electric toothbrush ↗
Hacker News discussion.
- OpenAlex · Published · First archived
A Technical Review of Battery Technologies in Electric Vehicles ↗
Battery electric vehicles (BEVs) have become a major component of the global transition toward electrified transportation. The rapid expansion of BEV adoption has been accompanied by substantial advances in lithium-ion battery technology, including improvements in cell chemistry, manufacturing processes, energy density, charging capability, and structural integration. However, technical information describing commercial traction batteries remains distributed across manufacturer documents, regulatory databases, engineering studies, teardown investigations, and market reports. This fragmentation…
- OpenAlex · Published · First archived
Thermal and electrical behavior analysis of LFP-cathode battery ↗
Traditional state-of-charge (SOC) estimation frameworks for lithium-iron-phosphate (LiFePO $$_{4}$$ ) batteries remain heavily reliant on extensive, empirical test data to parameterize equivalent circuit models. This reliance creates significant development bottlenecks and limits predictive capability under dynamically shifting thermal environments. This paper introduces a novel, multi-scale, physics-informed simulation pipeline that bridges sub-atomic quantum metrics directly with macroscopic real-time state estimation. Instead of relying on purely empirical tracking configurations, we extrac…
- OpenAlex · Published · First archived
Enhancing lithium-ion battery fire suppression via xanthan gum-induced drainage delay of firefighting foam ↗
Lithium-ion battery (LIB) fires are difficult to suppress because thermal runaway can generate intense heat, combustible gases, and sustained reignition hazards. Here, we develop a xanthan gum (XG)-modified foam designed to improve foam stability and prolong surface cooling by delaying liquid drainage. Rheological and stability characterization demonstrate that XG significantly increases the foam yield stress and induces pronounced drainage delay, which is attributed to a polymer-jamming mechanism within the Plateau borders. Compared with commercial AFFF, the XG-modified foam exhibits improved…
- OpenAlex · Published · First archived
Thermodynamic Investigation of a Novel Hybrid Carnot Battery with Thermal Storage at Two Temperature Levels ↗
Energy storage is a critical step for the decarbonization of our society by exploiting renewable energies. Carnot batteries are promising technologies for storing excess electricity from renewables, but their efficiency is generally limited. The present work suggests a novel idea for enhancing the performance and flexibility of Carnot battery units. Specifically, a hybrid system that exploits both electricity and waste heat streams is suggested, incorporating two stages of latent thermal storage to increase flexibility. Moreover, the present system uses an innovative cascade high-temperature h…
- OpenAlex · Published · First archived
A computational fluid dynamics based analysis of coupled thermal and electrochemical processes in lithium-ion battery cells ↗
This study presents a computationally efficient lumped electrochemical–thermal solver implemented in OpenFOAM, decomposing cell voltage into open-circuit, ohmic, activation, and concentration overpotentials with Arrhenius temperature dependence and Fickian diffusion in idealized particles. The implicit Backward Euler discretization with Thomas Algorithm achieves 44–53 × speedup over explicit schemes, enabling 100 × larger time steps while maintaining stability. Validation against a commercial benchmark under 4C discharge demonstrates excellent agreement, with mean absolute percentage errors of…
- OpenAlex · Published · First archived
Mechanical Characterization of Single-Layer Ceramic-Coated Battery Separators and Finite Element Modeling of Their Deformation ↗
Mechanical characterization of battery separators provides inputs for material-level finite element models. This study investigates components extracted from a commercial 37 Ah graphite/NMC pouch cell, focusing on single layers of an Al2O3-coated polyolefin separator conditioned in salt-free EC:DMC. Through-thickness compression of single layers is compared with 34-layer stacks and previously reported 100-layer data for the same separator and conditioning; both stack configurations show similar trends that differ from the single-layer response. Tensile tests characterize the machine and transv…
- OpenAlex · Published · First archived
Machine Learning-Based Electric Vehicle Remaining Range Prediction: Assessing the Relative Impact of Battery Status, Driving Context, and Environmental Conditions ↗
This study presents a comprehensive machine learning (ML) evaluation methodology, grounded in physical principles, for range estimation in battery-electric vehicles (BEVs). In a simulation environment consisting of 50 driving and 12 virtual vehicles, 2000 observations were generated by classifying 23 input variables into three main categories: battery and energy status (SOC, voltage, current, battery power, rolling energy consumption, SOH, battery temperature, regenerative power), driving and route context (speed, acceleration, cumulative distance, route gradient, traffic density, driving styl…
Live window recorded . This is the ingestion observation time, not the publication or discovery date of each source.
How to assess evidence about Battery Storage
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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