Manufacturer of custom battery solutions: lithium-polymer, LiFePO4, NiMH and lithium-ion button cells including BMS and battery integration.
Shenzhen Grepow Battery Co., Ltd.
Shenzhen (Longhua) · Shenzhen (Gongming) · Chenzhou, Hunan · Korschenbroich · Livermore, CANew on Amplifa
About Grepow
Shenzhen Grepow Battery Co., Ltd. was founded in 1998 to manufacture environmentally friendly rechargeable NiMH batteries as replacements for disposable, dry-cell and NiCd batteries. Today the company produces lithium-polymer batteries (pouch, stacking process), LiFePO4 cells, rechargeable lithium-ion button cells with patented steel casing, and semi-solid-state cells with an energy density of ≥450 Wh/kg. Specialties include form-factor-customized batteries (round, curved, ultra-thin from 0.5 mm, ultra-narrow from 4.1 mm), high-current cells up to 50C, high-voltage cells up to 4.45 V, and operation at temperatures from -50 °C to 80 °C. Grepow offers integrated battery customization from cell through BMS/PCM to the battery housing and performs complete pack assembly. The four factories on 250,000 m² produce 500,000 NiMH cells and 1,200,000 Ah of Li-polymer per day. The batteries are used, among other things, in drones, RC models, medical technology, wearables, IoT, robotics, mining and automotive applications.
- Site
- Longhua District, Shenzhen
- Processes
- Lithium polymer battery cell manufacturing (pouch, stacking process), NiMH battery production (including wide temperature spectrum, explosion protection), LiFePO4 battery cell manufacturing (up to 40C discharge rate), Lithium-ion button cells (steel casing, patented), Battery pack assembly / battery integration (cell + BMS + structure), BMS design (1-24S, SMBus/CAN, protection functions), Laser welding to nickel (laser welding of cell labels onto nickel), Custom battery adaptation (shaped battery: round, curved, thin; capacity up to 84 Ah per cell)
- Materials
- Lithium polymer (LiPo), NiMH (nickel-metal hydride), LiFePO4 (lithium iron phosphate), Lithium-ion button cell, Semi-solid-state lithium battery, Nickel strip (for laser coating), Ceramic diaphragm (separator), CNT (carbon nano tube)
- Certificates
- ISO 9001, ISO 14001, IATF 16949, ISO 13485, ISO 45001 / OHSAS 18001, UN38.3, UL, CE, MSDS, ISO 45001
- Founded
- 1998
- Employees
- 3500
- Industries
- UAV/drones, RC hobby, Medical technology, Wearables, IoT, Robotics
- 01
Raw material/material inspection
- 02
Slurry production (vacuum blender)
- 03
Coating (coater)
- 04
Calendering
- 05
Die-cutting / winding / stacking
- 06
Electrode filling
- 07
Formation & grading
- 08
Pack assembly including laser welding
- 09
BMS integration & structural assembly
- 10
100% final inspection & shipping
Cell Chemistries & Processes
Lithium polymer (pouch, stacking)
Soft-pouch cells in the stacking process with free form design, up to 50C discharge rate and up to 84 Ah per cell.
Lithium iron phosphate
Safe LFP cells with up to 40C discharge rate for power tools, jump starters and portable power stations.
Nickel-metal hydride
Wide temperature range (-20 to 80 °C), explosion-proof capable, for mining and industrial applications.
Lithium-ion button cell
Patented steel-casing button cells with up to 10C discharge rate for portable and wireless devices.
Semi-solid-state lithium
Cells with energy density ≥450 Wh/kg for high-energy applications.
High-voltage cell 3.95/4.45 V
High-voltage chemistry for maximum energy density in pouch format.
Ceramic/9 µm diaphragm
Nano-ceramic-coated separator or 9 µm diaphragm reduces internal resistance and increases safety.
Carbon nano tubes
CNT additives in electrodes improve adhesion strength and internal resistance.
Low/high-temperature electrolyte
Enables operation from -50 °C to 60 °C and storage up to 70 °C.
Locations
Shenzhen (Longhua)
CNHead office / headquarters
Shenzhen (Longhua Digital Innovation Center)
CNInternational Marketing Center
Shenzhen (Gongming, Guangming)
CNR&D and production site Shaped Battery
- Materials
- LiPo (Shaped)
Chenzhou, Hunan
CNNiMH factory (Hunan Grepow New Energy Ltd.)
- Lot size
- Large-scale series
- Materials
- NiMH
- Vacuum blender
- Coater
- Calender machine
- Die-cutting machine
- Winder machine
- Stacking machine
- Electrode filling machine
- Formation machine
- Grading detection machine
- Laser welding machine
- X-Ray inspection system
Korschenbroich
DEGermany branch (sales/service)
Livermore, CA
USUS branch (sales/service)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Lithium polymer battery cell manufacturing (pouch, stacking process)Cell manufacturing battery technology | – | – | – | – | Lithium-polymer |
| NiMH battery production (including wide temperature spectrum, explosion protection)Cell manufacturing battery technology | – | – | – | 500,000 units/day | NiMH, Nickel-metal hydride |
| LiFePO4 battery cell manufacturing (up to 40C discharge rate)Cell manufacturing battery technology | – | – | – | – | LiFePO4, Lithium iron phosphate |
| Lithium-ion button cells (steel casing, patented)Cell manufacturing battery technology | – | – | – | – | Lithium-ion |
| Battery pack assembly / battery integration (cell + BMS + structure)Assembly | – | – | – | – | Lithium-polymer, LiFePO4, NiMH |
| BMS design (1-24S, SMBus/CAN, protection functions)Engineering | ≤±5mV voltage tolerance, ≤±2℃ temperature error, ≤±5% | – | – | – | – |
| Laser welding to nickel (laser welding of cell labels onto nickel)Joining | – | – | – | – | Nickel |
| Custom battery adaptation (shaped battery: round, curved, thin; capacity up to 84 Ah per cell)Engineering | – | – | – | – | Lithium-polymer |
| Semi-solid-state battery (≥450Wh/kg)Cell manufacturing battery technology | – | – | – | – | Semi-solid-state lithium |
| Quality control / testing (X-ray inspection, reliability test lab, 100% final inspection)Testing | – | – | – | – | – |
| NiMH OEM/ODM custom batteries for mining (sample 7 days, large delivery 35 days, 500+ cycles)Cell manufacturing battery technology | – | – | – | – | NiMH |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vacuum blender | – | – | – | – | – |
| Coater | – | – | – | – | – |
| Calender machine | – | – | – | – | – |
| Die-cutting machine | – | – | – | – | – |
| Winder machine | – | – | – | – | – |
| Stacking machine | – | – | – | – | – |
| Electrode filling machine | – | – | – | – | – |
| Formation machine | – | – | – | – | – |
| Grading detection machine | – | – | – | – | – |
| Packing automation equipment | – | – | – | – | – |
| Laser welding machine | – | – | – | – | – |
| X-Ray inspection system | – | – | – | – | – |
| Automated inspection (sweep inspection) | – | – | – | – | – |
Additional services
Reference customers
Quality
Quality assurance includes 100% final inspection, X-ray inspection, automated sweep inspection, as well as a reliability test laboratory and material testing laboratories; all data is traceable via pack barcodes.
| Evidence | Shenzhen |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| ISO 45001 | |
| IATF 16949 | |
| ISO 13485 |
History
- 1998
Founded as Shenzhen Grepow Battery Co., Ltd. for the manufacture of environmentally friendly NiMH batteries
- 1999
ISO 9001 certification
- 2001
Named one of Shenzhen's Top 100 Science and Technology Enterprises
- 2003
National Torch Program; first national NiMH HeV power battery production base (Ministry of Science and Technology)
- 2004
ISO 14001 certification
- 2007
Establishment of a team for stacking pouch cell lithium batteries
- 2008
First national high-tech enterprise award
- 2013
Key enterprise of strategic emerging industries in Longhua; Science and Technology Innovation Award
- 2016
OHSAS18001/ISO45001 and IATF16949 certification; Shenzhen Quality Contribution Award
- 2018
National Integrated Management System
- 2019
As of June: 205 patent applications, 148 granted patents, 11 international patents, 25 trademark applications
- 2020
ISO 13485 certification