Managing Power with Different Types of Batteries in an Energy Storage System
This patent describes an energy storage system that uses multiple types of batteries, each with different charging and discharging speeds, to efficiently manage power from various sources like solar panels or the main power grid for different electricity needs.
Original patent title: “Energy storage system and management method thereof”
This patent describes an energy storage system that uses multiple types of batteries, each with different charging and discharging speeds, to efficiently manage power from various sources like solar panels or the main power grid for different electricity needs. Granted to Doosan Heavy Industries and Construction Co in 2020 with 8 claims, and it is expected to expire in 2037.
Coverage
What does this patent actually cover?
This patent details an energy storage system (ESS) designed to handle varying power demands and supplies. It includes a power station (which can be renewable or non-renewable) and an external power grid. The core of the system is an energy storage facility with a Battery Management System (BMS) that controls several individual energy storage units, or 'apparatuses' (ClaimclaimA numbered sentence at the end of a patent that legally defines what the inventor owns. The most important section.Read more → 1). Crucially, these apparatuses contain different types of batteries, each with distinct charge and discharge times. For example, a 'first battery type' might be fast-acting for sudden power needs, while a 'second battery type' has longer charge/discharge times, suitable for steady, long-term power (Claim 1). The BMS can individually charge these batteries from either the power station or the grid, and discharge them to supply power to a load. The system can use the faster batteries to handle sudden 'peak loads' and the slower ones for 'base loads' (Claim 2).
The gap
What does this patent NOT cover?
- Does not cover an energy storage system that uses only one type of battery for all storage needs.
- Does not cover systems where individual battery apparatuses are not controlled separately by a Battery Management System (BMS).
- Does not cover systems where all energy storage apparatuses have identical charging and discharging periods.
- Does not cover a system that only discharges batteries without the ability to charge them from an external power grid or power station.
- Does not cover an energy storage system that lacks a power station or an external power grid as power sources.
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
Key facts
What made this novel
The clever part is the coordinated use of multiple battery types, each optimized for different response times, within a single energy storage system. This allows the system to efficiently handle both quick, high-power demands (like a sudden surge) and slower, sustained energy needs, rather than relying on a single, compromise battery solution.
The Patent Drawing
Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.
Where you've seen this
Real-world examples
Grid-scale battery energy storage systems (BESS)
Hybrid energy storage solutions for industrial facilities
Microgrids integrating solar, wind, and battery storage
Smart grid infrastructure projects
Electric vehicle charging stations with integrated storage
Why it matters
The bigger picture
Managing electricity supply and demand is complex, especially with more renewable energy sources like solar and wind, which are not always consistent. This patent addresses this by proposing a way to combine different battery technologies. This allows for a more flexible and efficient response to power fluctuations, ensuring stable electricity delivery to homes and businesses. It's particularly relevant for grid-scale energy storage and microgrids.
Filed
February 14, 2017
Granted
August 25, 2020
Market context
Who's building on this
Companies in this space
Companies like Doosan Heavy Industries and Construction, the original assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →, are active in large-scale energy infrastructure, including energy storage systems. Other major players in the energy storage market, such as Tesla, Fluence (a Siemens and AES company), LG Energy Solution, and Samsung SDI, are continuously developing and deploying advanced battery management and hybrid storage solutions for grid applications and renewable energy integration.
Market impact
This patent contributes to the ongoing evolution of energy storage systems, particularly in enabling more resilient and efficient power grids. By proposing a method to combine different battery chemistries, it supports the integration of intermittent renewable energy sources, which helps stabilize power supply. This approach can reduce reliance on fossil fuel 'peaker plants' and improve overall grid reliability, impacting how utilities manage their energy portfolios and invest in infrastructure.
Claim 1 — Plain English
What this patent covers
This patent details an energy storage system (ESS) designed to handle varying power demands and supplies. It includes a power station (which can be renewable or non-renewable) and an external power grid. The core of the system is an energy storage facility with a Battery Management System (BMS) that controls several individual energy storage units, or 'apparatuses' (Claim 1). Crucially, these apparatuses contain different types of batteries, each with distinct charge and discharge times. For example, a 'first battery type' might be fast-acting for sudden power needs, while a 'second battery type' has longer charge/discharge times, suitable for steady, long-term power (Claim 1). The BMS can individually charge these batteries from either the power station or the grid, and discharge them to supply power to a load. The system can use the faster batteries to handle sudden 'peak loads' and the slower ones for 'base loads' (Claim 2).
The clever bit
The clever part is the coordinated use of multiple battery types, each optimized for different response times, within a single energy storage system. This allows the system to efficiently handle both quick, high-power demands (like a sudden surge) and slower, sustained energy needs, rather than relying on a single, compromise battery solution.
What it does not cover
- Does not cover an energy storage system that uses only one type of battery for all storage needs.
- Does not cover systems where individual battery apparatuses are not controlled separately by a Battery Management System (BMS).
- Does not cover systems where all energy storage apparatuses have identical charging and discharging periods.
- Does not cover a system that only discharges batteries without the ability to charge them from an external power grid or power station.
- Does not cover an energy storage system that lacks a power station or an external power grid as power sources.
Patent timeline
Application submitted to the patent office
Application published, typically 18 months after filing
Patent officially issued
Patent enters public domain
PatentBrief Score
Impact Score
Limited data
Citation count
0/40
No citations yet
Claim breadth
5/20
Moderate scope
Recency
10/20
Granted 5–10 years ago
Assignee scale
0/20
Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
Heuristic Value Estimate
What this patent might be worth
$21K – $67K
Midpoint $42K · 10.4 yr remaining · industry ×1.4
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
Claim text not yet imported for this patent
The original legal language
Original claims
8 claims as filed with the patent office.
Concepts involved
Citations
Patent lineage
Cite this patent
RHIE, Y. H., PARK, S. K., & YOUN, J. Y. (2020). Managing Power with Different Types of Batteries in an Energy Storage System (U.S. Patent No. 10,756,544). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/10756544/energy-storage-system-and-management-method-thereof
Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.
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Common Questions
Frequently Asked Questions
What does Managing Power with Different Types of Batteries in an Energy Storage System cover?
This patent describes an energy storage system that uses multiple types of batteries, each with different charging and discharging speeds, to efficiently manage power from various sources like solar panels or the main power grid for different electricity needs.
Who owns patent US 10756544?
Doosan Heavy Industries and Construction Co owns this patent, granted in 2020.
When does this patent expire?
This patent is expected to expire on February 14, 2037, when the invention enters the public domain.
What problem does this patent solve?
Managing electricity supply and demand is complex, especially with more renewable energy sources like solar and wind, which are not always consistent. This patent addresses this by proposing a way to combine different battery technologies. This allows for a more flexible and efficient response to power fluctuations, ensuring stable electricity delivery to homes and businesses. It's particularly relevant for grid-scale energy storage and microgrids.
What does this patent NOT cover?
Does not cover an energy storage system that uses only one type of battery for all storage needs.
Patent monitoring