Every month, the battery world produces more announcements than any engineer has time to read. Here, we collect the ones that actually matter for people who design, build, and integrate battery systems, each with a short integrator’s view on what it means in practice. Updated monthly by the AMICELL engineering team.
August 2026
1. Cold Weather: The Battery’s Least Favorite Customer
Israeli battery-technology company Addionics introduced a new electrode architecture designed to improve lithium-ion battery operation and charging at low temperatures. The technology targets applications including drones, aviation, trucks and autonomous systems.
Integrator’s View: Cold-weather performance is not only a cell specification – it affects charging current, available power, and thermal-control strategy. Apparently, batteries dislike winter almost as much as we do. We recently covered the opposite end of the thermometer in our guide to High-Temperature Batteries for Defense Drones: Extending Operational Range. The design lesson is the same: the mission profile, not the datasheet, sets the thermal requirements.
Source: Addionics – Battery Architecture for Low-Temperature Performance, August 25, 2026
2. Sodium-Ion Passes the “Please Don’t Catch Fire” Test
UNIGRID announced that Hyundai Motor Group had completed validation of its 210 Ah sodium-ion NCO cells. Testing included abuse conditions with no fire or thermal propagation, plus operation from −20°C to +60°C.
Integrator’s View: Sodium-ion becomes much more interesting when the discussion moves from theoretical cost advantages to actual safety testing. Lithium may finally have some competition – no need to panic yet. For why abuse testing is the real test of any chemistry, see our article, How Dangerous Are Batteries, Really?
Source: UNIGRID / Hyundai – Sodium-Ion Technology Validation, August 26, 2026
3. Solid-State Is Slowly Leaving the PowerPoint
Factorial reported that its solid-state platform has demonstrated 390 Wh/kg in cells delivered to a global OEM, while targeting approximately 450 Wh/kg for its drone programs by year-end. The company also says its FEST platform can use much of the existing lithium-ion manufacturing infrastructure.
Integrator’s View: High energy density is exciting. High energy density that can actually be manufactured repeatedly is much more exciting. In batteries, the distance between a great prototype and a great product can be surprisingly long. We mapped where each next-generation chemistry really stands in The Most Advanced Battery Technologies Available Today
Source: Factorial Energy – Q2 2026 Shareholder Letter, August 11, 2026
4. IEC 60623 Gets a More Real-World Workout
IEC published IEC 60623:2026 on August 24 for industrial vented NiCd batteries. The new edition adds internal DC-resistance testing, pulse-power calculation, constant-power testing, and durability parameters.
Integrator’s View: Batteries rarely spend their lives politely supplying one constant current. Pulse power and constant-power testing bring the standard a little closer to what batteries actually experience. NiCd may not make many headlines anymore, but apparently it is not ready for retirement just yet. Standards evolving toward real-world conditions is a pattern we know well from UN 38.3 certification
Source: IEC – IEC 60623:2026
5. Battery Charger Safety Gets an Update
ANSI/UL 60335-2-29, covering safety requirements for battery chargers, received a new revision on August 10, 2026.
Integrator’s View: A battery system is only as safe as its charging system. New revision, new requirements – so yes, it may be time to hit the books again. It is also a good moment to check whether your charging solutions were designed with margin for the next revision, not just the last one.
Source: UL Standards – UL 60335-2-29 Revision, August 10, 2026
6. Charging Is Becoming a Software Problem Too
Hyundai Motor Group and Kaluza announced a global smart-charging partnership in August. The platform will initially connect Hyundai and Kia vehicles to energy tariffs and charging controls in the UK and Australia, with vehicle-to-grid functionality as part of the broader technology direction.
Integrator’s View: The charger is no longer just a power supply with a large cable. Communication, scheduling, and energy management are becoming part of the charging system. Apparently, even electrons now need software. This is exactly why more of our custom charger projects now start with a communication spec, not a power spec.
Source: Kaluza / Hyundai – Global Smart-Charging Partnership, August 20, 2026
7. SOH Without Waiting for a Full Capacity Test?
Researchers published a new SOH-estimation method using Electrochemical Impedance Spectroscopy (EIS) combined with Transformer-BiLSTM machine learning. On the tested coin cells, the model achieved an R² of 0.9952 and a mean absolute error of about 0.28 percentage points.
Integrator’s View: Fast and reliable SOH estimation could dramatically simplify maintenance and field diagnostics. Because nobody enjoys waiting several hours for a complete charge-discharge test just to discover that the battery is, indeed, old. Fast, practical diagnostics are precisely the problem our battery analyzers were built to solve.
Source: Journal of Energy Storage – EIS-Based SOH Estimation, August 2026
8. Balancing Without Turning the Extra Energy Into Heat
An August study demonstrated a modular industrial BMS using multi-inductor active cell balancing, transferring energy between cells rather than dissipating imbalance through resistors. The proposed architecture was experimentally validated for high-energy-density battery-pack applications.
Integrator’s View: Passive balancing remains wonderfully simple. Active balancing asks for more hardware and control – but when the pack gets large enough, deliberately converting useful battery energy into heat starts looking slightly less elegant. We walk through this exact trade-off in our BMS design deep-dive, and it shapes every AMICELL BMS.
Source: Journal of Power Sources – Multi-Inductor Active Cell Balancing, August 2026
9. The Flames Are Out. Are We Done? Not!
A new review of lithium-ion fire suppression compared water-based agents, gases, powders, foams, cryogenic methods and hybrid approaches. Its key conclusion is important: extinguishing the visible flame does not necessarily stop thermal runaway or prevent reignition.
Integrator’s View: For lithium-ion batteries, the real objective is not simply “no flames.” It is removing enough heat to stop propagation and reignition. The fire extinguisher may finish its job before the battery does. Containing exactly this scenario is why we have our Battery Safety Chamber.
Source: Batteries Journal – From Flame Extinguishment to Reignition Control, August 13, 2026
10. Thermal Runaway Testing: Choose Your Torture Carefully
Research published in Fire Technology compared cell-level and module-level thermal-runaway behavior and showed that heating conditions and the way thermal runaway is initiated can strongly influence the measured results. The study questions whether conventional single-cell abuse tests always represent real cell-to-cell propagation conditions.
Integrator’s View: This is an important reminder when designing abuse tests. If the initiation method doesn’t reflect the real failure scenario, we may learn more about the heater than the battery. The protective layers inside the cell itself are covered in Safety Systems in Cells.
Source: Fire Technology – Battery Abuse Testing and Thermal Runaway Propagation, August 20, 2026
