The Sangam of Cells – India’s First Fully Integrated Prismatic Battery Module Line
2026-06-26
Деталь корпуса
6ppm, pack aseembly line in India
| 1 | OCV Testing, Sorting and code Scanning |
| 2 | 5 Channel Sorter |
| 3 | Adhesive application workstation |
| 4 | Stacking Pressing and Strapping |
| 5 | Code Scanning and Binding |
| 6 | Polarity testing and Addressing |
| 7 | Laser welding and Liquid Cooling Plate Automated Gluing |
The Sangam of Cells – India’s First Fully Integrated Prismatic Battery Module Line Ignites a 272 GWh Domestic Storage Revolution
From OCV testing to liquid-cooled plate bonding in one continuous 7-station flow – powering 30% EV penetration, 500 GW renewable capacity, and a $4.7 billion annual import substitution.
Date of Commissioning: June 22, 2026
Location: Sanand GIDC Industrial Estate, Gujarat, Republic of India
Key Figures:
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Shri H.D. Kumaraswamy – Union Minister for Heavy Industries
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Ms. Priya Menon – Chief Operating Officer, domestic battery module joint venture
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Mr. Hiroshi Tanaka – Lead Automation Engineer, systems integration team
Project Background
India stands at the dawn of its most transformative energy decade. With an economy surpassing $4.5 trillion and a population exceeding 1.4 billion, the country faces an unprecedented convergence of challenges: a surging electricity demand growing at 6–8% annually, a national grid strained by rapid renewable integration, and a transportation sector undergoing its most profound shift since independence.
The numbers tell a compelling story. India's lithium-ion battery imports have risen sharply from USD 1.2 billion in 2018-19 to USD 4.7 billion in 2025-26. China now controls more than 84% of India's lithium-ion battery imports, while the country imports 68% of its lithium compounds from China. India's import bill for lithium‑ion batteries surged eightfold from US$384 million in 2019 to over US$3 billion by fiscal year 2025. Demand for advanced chemistry cell batteries is projected to reach 272 GWh by fiscal year 2030 and surpass 700 GWh by the mid‑2040s.
Yet domestic cell manufacturing capacity remains critically insufficient. The ACC Production Linked Incentive scheme, approved in May 2021 with a total outlay of ₹18,100 crore to establish 50 GWh of domestic Advanced Chemistry Cell manufacturing capacity, has seen only 1 GWh commissioned. At present, domestic demand continues to be met largely through imports.
The government's response has been ambitious and multi-pronged. India is targeting EV penetration of 30% for private cars, 70% for commercial vehicles, 40% for buses and 80% for two and three-wheelers by 2030. The Central Electricity Authority estimates required energy storage capacity by 2029-30 at 60.63 GW, with the government approving Viability Gap Funding schemes totalling 43 GWh of Battery Energy Storage Systems. The Union Budget 2026 extended basic customs duty exemption to capital goods used for manufacturing lithium-ion cells for battery energy storage systems. India's battery manufacturing capacity, currently about 60 GWh, is expected to touch 100 GWh by 2026.
The strategic imperative is clear: India must build a sovereign battery manufacturing ecosystem that reduces import dependence, creates high-value jobs, and positions the country as a global battery manufacturing hub under the “Atmanirbhar Bharat” (Self-Reliant India) vision.
The Challenge: Extreme Heat, Monsoon Humidity, Grid Volatility, and Skills Gap
Gujarat, India's industrial powerhouse, lies along the western coast where the climate is characterised by scorching summers, high humidity, and seasonal monsoon extremes. Temperatures in the region frequently soar to 45–50°C during summer months, with relative humidity ranging from 35% to 80%, especially during pre-monsoon weeks. Ninety-five of the world's 100 hottest cities are in India, and temperatures in several regions cross 45°C. Over 350 million people are employed in micro, small and medium enterprises where rising heat is not a distant climate hazard but an immediate problem affecting workers' health, productivity, and business continuity.
India's national grid faces persistent instability. With rapid renewable energy induction occurring faster than planned targets, frequency fluctuations and voltage collapses remain commonplace. Voltage sags, brownouts, and momentary interruptions are regular occurrences in industrial zones – a reality that threatens sensitive automated production equipment. The government has taken steps to address this, including amendments to Electricity Rules in September 2025 permitting energy storage systems to be developed, owned, leased or operated by consumers, but grid volatility remains a daily operational challenge.
The local technical workforce, while young and growing rapidly, lacks hands-on experience with high-speed laser welding, automated polarity detection, 5-channel sorting, and liquid-cooled plate bonding – technologies that are foundational to modern prismatic battery module assembly. India's battery manufacturing capacity is expanding, but the skills ecosystem has not kept pace.
Any viable solution had to be:
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Heat-hardened – with active thermal management, sealed optical paths, and temperature-compensated dispensing systems capable of operating reliably at ambient temperatures exceeding 45°C.
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Humidity-protected – with pressurised clean-air enclosures over all precision workstations and dehumidification systems to prevent moisture ingress during monsoon months.
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Grid-resilient – with active power conditioning, ride-through capability for voltage sags, and UPS integration to maintain production during momentary outages.
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Operator-accessible – with Hindi-English HMI, step-by-step diagnostic guidance, and an intensive 10-week training programme.
The Solution: A 7-Station Prismatic Module Assembly Powerhouse
In response to India's strategic imperative, a purpose-engineered prismatic lithium-ion battery module production line was designed, fabricated, and commissioned over 15 months. The line integrates seven core workstations, fully synchronised via a central MES (Manufacturing Execution System) with real-time traceability from individual cell QR codes to finished module serial numbers:
| Station | Equipment | Function |
|---|---|---|
| 1 | OCV testing, sorting & code scanning | Measures open-circuit voltage and internal resistance; sorts cells by performance tier; scans QR codes for full traceability from cell to module. |
| 2 | 5-channel sorting machine | High-speed multi-channel sorting and binning of cells into five performance grades – enables precise matching for optimal module performance and longevity. |
| 3 | Adhesive application workstation | Dispenses thermally conductive adhesive for cell-to-heatsink bonding with real‑time viscosity and thickness feedback – critical for thermal management in India's extreme summer heat. |
| 4 | Stacking, pressing & strapping unit | Compresses cell stacks under controlled force (0.5–4 kN) and applies steel/PET strapping – eliminates manual torquing variability. |
| 5 | Code scanning & binding | Second-pass QR verification and module ID binding – dual-redundant readers ensure 99.99% read accuracy. |
| 6 | Polarity testing & addressing | Non-contact Hall-effect sensors verify each cell's polarity before welding; assigns CAN bus addresses for BMS communication. |
| 7 | Laser welding & liquid-cooled plate automatic bonding | High-power CW laser with seam tracking performs precision welds; integrated robotic arm automatically bonds liquid-cooled plates to module assemblies – a critical feature for battery performance in high-temperature environments. |
The entire floor footprint is 420 m² – remarkably compact for an annual capacity of 14,000 modules (equivalent to 4,700 EV battery packs or 70 MWh of stationary storage). Changeover between prismatic cell formats (VDA 355, 390, and custom sizes) is accomplished in under 30 minutes, enabling flexible production for both automotive OEMs and utility-scale energy storage system integrators.
Local Adaptation: Designed for India's Realities
To address Gujarat's extreme heat, humidity, and grid challenges, engineers implemented several innovations:
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Advanced thermal management – A water‑glycol cooling loop for lasers, electronics, and adhesive dispensing heads, supplemented by active temperature monitoring at every workstation. The liquid-cooled plate bonding station is specifically engineered to ensure consistent thermal interface performance even when factory ambient temperatures exceed 45°C.
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Pressurised clean-air enclosures with dehumidification – Over laser optics, adhesive dispensing heads, polarity sensors, and the liquid-cooled plate bonding station – reducing optics cleaning from daily to weekly despite frequent dust storms and maintaining optimal humidity levels during monsoon months.
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Active power conditioning units with UPS integration – At each major workstation, providing ride-through capability for voltage sags of up to 25% for 500 ms. A centralized UPS system ensures graceful shutdown and data preservation during extended outages – a critical feature given India's grid volatility.
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Seismic and vibration isolation – Shock-absorbing mounts under the laser welding, stacking, and liquid-cooled plate bonding stations to protect against vibration from nearby heavy industrial activity.
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Dual-language HMI – Hindi and English interfaces with visual diagnostic guides, enabling rapid troubleshooting by local operators.
Socio-Economic Impact & Government Alignment
The line was officially inaugurated on June 25, 2026, at the Sanand GIDC Industrial Estate in Gujarat – one of India's premier industrial zones, strategically located near the Delhi-Mumbai Industrial Corridor. The inauguration ceremony was attended by representatives from the Ministry of Heavy Industries, the Gujarat government, and local industrial zone authorities.
In his keynote address, Union Minister for Heavy Industries Shri H.D. Kumaraswamy emphasized:
"This facility represents a decisive step toward implementing India's ACC PLI scheme and achieving our vision of Atmanirbhar Bharat in energy storage. By integrating prismatic module assembly – from OCV testing through 5-channel sorting to laser welding and liquid-cooled plate bonding – we are not merely assembling batteries; we are building a sovereign energy storage capability for India. This line will supply modules for our growing EV ecosystem, for grid-scale storage projects under the VGF schemes, and for the millions of solar-powered homes and businesses across the country. This is how we reduce our $4.7 billion battery import bill and achieve our 500 GW renewable energy target."
The project has already demonstrated strong alignment with India's strategic priorities:
| Priority | Alignment |
|---|---|
| ACC PLI Scheme (₹18,100 crore) | First operational prismatic module line supporting domestic ACC manufacturing |
| 30% EV penetration by 2030 | Supplies modules for locally assembled EVs |
| 500 GW non-fossil capacity by 2030 | Enables grid-scale BESS deployment |
| $4.7B annual battery import reduction | Reduces dependence on imported battery modules |
| 60.63 GW storage capacity by 2030 | Supports national energy storage targets |
| Local content development | 30% local content in Year 1, targeting 55% by Year 3 |
Local employment data shows the project has created 180 direct jobs – including 58 engineering positions – and an estimated 280 indirect jobs in logistics, maintenance, and local supplier networks. The joint venture has committed to increasing local content from 30% to 55% within three years, sourcing enclosures, cooling plates, busbars, and cable harnesses from Indian suppliers in Gujarat and Maharashtra. The Ministry of Heavy Industries is actively supporting supplier development programmes to build a local battery ecosystem under the PLI framework.
Results at a Glance (First 30 Days)
| Metric | Performance |
|---|---|
| Overall Equipment Effectiveness (OEE) | 86.2% (exceeding the 82% global benchmark for new lines) |
| 5-channel sorting accuracy | 99.97% – ensuring optimal cell matching |
| Welding defect rate | 0.07% (laser welding & cleaning reduced busbar contamination by 63%) |
| Module cycle life (tested) | ≥ 4,600 cycles at 80% DoD – exceeds Indian automotive warranty requirements |
| First-pass yield | 97.1% |
| Local content share | 30% (enclosures, cooling plates, cabling, liquid-cooled plate components) |
| Production ramp | 310 modules in first month, bound for EV assembly and grid storage pilot projects |
Future Roadmap
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