AUS
NZ
UK
CA
USA
IND
Highlights
- Altech Batteries’ R&D work has introduced an expanded CERENERGY® module design, increasing energy capacity from 60 kWh to 90 kWh without requiring infrastructure changes.
- System-level benefits include increase in density, stable thermal behaviour, and improved operational efficiency.
- The redesign is expected to deliver approximately 30% cost reductions at both the module and pack levels.
- ATC shares rose 6.06% to AUD 0.035 on 23 September 2025.
Altech Batteries Limited (ASX:ATC) (FRA:A3Y) has announced a breakthrough in its CERENERGY® battery development program. Its latest research and development efforts have resulted in an expanded module design that delivers higher energy within the same casing.
By transitioning from the existing 48-cell layout to a beehive configuration of 72 cells per module, each five-module pack now delivers 90 kWh of energy, up from 60 kWh, while maintaining the current battery casing design. Notably, this upgrade requires no changes to the established factory setup.
The new design also minimises inactive or unheated zones within the battery, with R&D efforts directed at optimising thermal distribution and managing heat accumulation during operation.
System-Level Improvements
The redesigned module introduces several technical advantages, including:
- Higher energy and power density: allowing more efficient performance within the same physical casing.
- Improved thermal behaviour: modelling demonstrates a uniform temperature distribution with no excessive build-up during discharging and charging, resulting in lower temperature differentials (ΔT) across cells, reduced internal resistance, and stable operation under load.
- Cost reductions: nearly 30% savings are anticipated at the pack and module levels.
Engineering Enhancements
Engineering refinements in the new design overcome practical design challenges. These include simplified cell contacting to free up internal space, repositioned temperature sensors, optimised welding techniques and a redesigned frame. Together, these changes improve assembly efficiency, structural robustness, and operational reliability.
The company stated that the adjustments improve competitiveness measured in €/kWh, while also strengthening scalability as CERENERGY® advances toward full industrial production.
Ongoing Development and Grid Integration
Altech stated that the new module design has not yet been finalised, with further modelling work in progress. Current R&D efforts are also focused on incorporating the expanded module concept into a grid-scale battery pack. This stage aims to ensure optimised performance, cost-efficiency, and reliability for future commercial deployment.
ATC Shares Rally
ATC shares were trading 6.06% higher at AUD 0.035 per share during trading hours on 23 September 2025.
