Rohera Emerging Energies Pvt Ltd
A patented dual-storage energy architecture that structurally prevents thermal runaway, extends battery life by up to 148% (modelled) and delivers <20 ms response time — protected by granted patents across India, USA, Japan, Europe, EurAsia and Israel.
Hybrid Power Pack — Dual-Storage Architecture · SC Bank + BMS/EMS + LiFePO₄ Cell Stack
Scientific Foundation
Every performance claim derives from either a mathematical identity or a peer-reviewed experimental measurement.
Validation Status
For due-diligence audiences: each claim is explicitly tagged as Verified (measurable, reproducible), Modelled (derived from peer-reviewed data), or Conditional (depends on installation parameters).
Core Innovation
Patented Input Channels
The architecture accepts energy from six distinct sources, each covered by explicit patent claims. This breadth of input coverage is a key differentiator for licensing across multiple verticals.
Applications
Each application maps directly to the patent claims. Primary applications (EVs, Solar, SLI, Telecom, Railways) represent active commercial focus. Energy Harvesting and HEV/PHEV are available for licensing to specialist OEMs.
The SC bank handles all regenerative braking pulses and acceleration transients, allowing the LiFePO₄ pack to operate continuously at ≤0.3C effective rate. This extends pack life while simultaneously recovering up to 88% of braking energy — vs. ~62% for battery-alone systems.
| Metric | HPP Performance | Validation Status |
|---|---|---|
| Battery cycle life extension | +120–148% | Modelled |
| Regenerative braking recovery | 62% → 88% | Verified |
| Peak battery current (EUDC) | −21.3% | Verified |
| Urban energy consumption | −12.36% | Verified |
| I²R thermal loss | −91% | Verified |
| Thermal runaway prevention | Structural | Verified |
Gold curve: HPP battery retention. Red curve: standalone battery. Teal: I²R heat (near zero at 0.3C)
In HEV and PHEV architectures, the HPP enables simultaneous delivery from both storage layers — the SC provides instant peak power for acceleration while the battery maintains steady state energy delivery. The EMS manages the split in real time, reducing battery stress in the most demanding drive-cycle conditions.
| Metric | HPP Performance | Status |
|---|---|---|
| Dual-storage simultaneous delivery | Patented (Claims 1–5) | Verified |
| Battery current reduction | −28.8 to −40% | Verified |
| HESS lifecycle cost vs. battery-only | −12% | Modelled |
| Vehicle-lifetime cost reduction | −39% | Modelled |
The SC bank holds the DC bus voltage stable during cloud-transient events (<20 ms response), preventing MPPT algorithm hunting and maximising energy harvest. Battery operates at ≤0.3C regardless of load transients, extending pack life 2–3× in real solar farm deployments.
| Metric | HPP Performance | Status |
|---|---|---|
| Round-trip efficiency improvement | +8–12 pp (93–96%) | Conditional |
| Solar self-consumption | 21.75% → 28.74% | Verified |
| Cloud-transient response | <20 ms | Verified |
| Battery cycle life | +120–148% | Modelled |
| MPPT efficiency | ≥99.3% | Verified |
Cranking events impose 3–8C pulse loads on SLI batteries — the most destructive load profile in automotive applications. The SC bank absorbs the full cranking pulse, leaving the battery to supply only a steady 0.3C trickle. CIRT-verified cranking endurance exceeds standard SLI batteries by a factor of ten.
| Metric | HPP vs Standard | Status |
|---|---|---|
| Cranking cycles endurance | 6,648 vs 652 cycles | Verified |
| Battery thermal stress | −91% I²R heat | Verified |
| Cold-start performance | SC delivers full current | Verified |
Telecom base stations and UPS systems require both high uptime and long battery replacement intervals. The SC bank handles every load spike from switching events and power-fail transitions, while the battery supplies the sustained DC at ≤0.3C — extending replacement intervals from ~3 years to ~12 years in modelled scenarios.
| Metric | HPP Performance | Status |
|---|---|---|
| Battery replacement interval | ~4× extension (modelled) | Modelled |
| System uptime capability | 99.999% class | Conditional |
| Switching transient absorption | <20 ms, SC | Verified |
Rail traction systems generate the highest regenerative braking pulses of any transport segment. The SC bank captures the full braking pulse at station approach; the battery provides sustained traction energy between stations. DRDO has tested and validated the architecture for defence applications requiring high reliability under demanding duty cycles.
| Metric | HPP Performance | Status |
|---|---|---|
| Regenerative braking recovery | ~35% of traction energy | Conditional |
| Battery life in traction duty | +120–148% | Modelled |
| Defence validation | DRDO R&DE(E) certified | Verified |
Three distinct patented energy-harvesting pathways are embedded in the architecture: ferrite-core inductive coupling (Claims 11–13), RF antenna capture (Claim 16), and permanent magnet generator on cooling fan (Claim 17). These pathways are particularly relevant for IoT sensor networks, remote monitoring stations, and industrial enclosures seeking to reduce grid dependency.
| Pathway | Claims | Status |
|---|---|---|
| Ferrite core / inductive | Claims 11–13 | Patented |
| RF antenna capture | Claim 16 | Patented |
| Cooling fan PMG | Claim 17 | Patented |
Intellectual Property
The priority filing date is 2015 (IN Application 2626/MUM/2015). All six utility grants derive from this single priority chain — meaning all grants validate the same inventive concept across jurisdictions independently examined.
The European grant (EP-3320595, granted 19 January 2022) is particularly significant: the European Patent Office conducts one of the most rigorous prior-art examinations globally. Surviving EPO examination against the same claims that were also granted by USPTO and JPO provides three independent confirmations of novelty and inventive step.
| Jurisdiction | Patent Number | Grant Date / Status | Notes |
|---|---|---|---|
| 🇮🇳 India | IN 301517 | Granted · Active | Active · 19 Claims Priority filing · Application 2626/MUM/2015 |
| 🇺🇸 United States | US 10,523,019 B2 | Granted · Active | Active · 20 Claims USPTO grant with one additional method claim |
| 🇯🇵 Japan | JP 6644883 | Granted · Active | Active JPO grant — independent novelty examination |
| 🇪🇺 European Union | EP 3320595 | Granted 19 Jan 2022 | Active EPO grant — rigorous prior-art standard; significant IP signal |
| 🌐 EurAsia | EA 035682 B9 | Granted · Active | Active Covers CIS states including Russia, Kazakhstan |
| 🇮🇱 Israel | IL 256796 | Granted · Active | Active Israeli Patent Office grant |
Commercial Validation
Two of India's largest battery manufacturers have provided Letters of Intent following technical evaluation of the HPP architecture.
Test Validation
Two independent government-body test certifications validate physical performance of the HPP prototype under controlled conditions.
Leadership
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