15+ years of expertise · High-silicon semi-solid tech up to 1000Wh/L.
Ultra-thin 0.4mm curved & ring-shaped cells for smart wearables.
LiFePO4 wall-mounted, rack & all-in-one ESS for home and industry.
Polymer Li-ion Battery | Cylindrical Li-ion Battery Pack | Type-C Rechargeable Battery | ESS Energy Storage System. Full customization for AI wearables, medical, drones, home appliances and industrial applications.
Silicon-Carbon High-Voltage Battery 552834 features high safety performance with zero fire and smoke risks.
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Ultra-Thin High-Capacity Semi-Solid State Battery SH 436980 delivers slim design and superior energy storage performance.
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Curved Ring-Shaped Battery features flexible ring structure to fit curved wearable devices perfectly.
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High-Capacity High-Voltage Long-Endurance Capsule Battery offers stable high voltage, large capacity and extended runtime for compact devices.
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Small Cylindrical Battery with compact size, stable output and wide application compatibility.
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High-Voltage & High Energy Density Battery 372126 delivers powerful voltage performance and superior energy density for longer device runtime.
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High Current Battery 21700-6S1P delivers stable high-current discharge for high-power devices.
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Robot Battery 18650-3S1P supplies stable continuous power for all kinds of robotic devices.
Learn MoreNational high-tech & specialized enterprise, standard drafter of Guangdong lithium battery. Focus on high-silicon semi-solid tech, certified by UL/CE/UN38.3, supplier for BYD & Philips.
Full-chain service: Electrochemical R&D → Custom Mold Design → Automated Mass Production → Full Safety Testing → After-sales Technical Support.
In-house high-silicon anode, in-situ thermal balance technology, customized electrolyte with Shanshan. Supports -40℃~+80℃ wide-temperature battery development.
Shenzhen R&D + Xiangyang smart factory, fully automatic production lines, million-level daily output, MES one-code one-item quality traceability.
Complete safety tests: nail penetration, crush, thermal shock, drop. Provides UN38.3, MSDS, air & sea shipping certification reports.
High energy density, ultra-thin, lightweight, high safety, low internal resistance — plus full support for custom shapes.
TWS earphones · speakers · power banks · 3C digital
Watches · bands · smart rings · AI glasses
Pulse oximeters · POS terminals · ultra-thin bank cards
Pool robots · service robots · industrial robots
Vacuums · e-bikes · shared bikes · power tools
ESS · portable power · home appliances
High-rate model aircraft · industrial UAV
See all industries we serve
Reliable. Certified. Innovative. Professional lithium battery manufacturer trusted worldwide.
National Specialized & Sophisticated SME
Lithium Battery Industry Standard Maker
Independent Safety & Performance Testing
Feedback from R&D and procurement teams across wearables, medical, fintech and industrial sectors.
Energy storage and consumer electronics have become the two strongest engines behind sustained growth in lithium battery demand, pulling innovation across cells, packs and system design.
SUNHE ENERGY is advancing its silicon-carbon anode and high-voltage lithium cell platform, taking the technology from laboratory samples toward stable, repeatable mass production.
Battery capacity, measured in mAh or Ah, describes how much charge a cell can store and deliver, while energy density measures how much energy it packs per unit volume or weight.
Energy storage and consumer electronics have become the two strongest engines behind sustained growth in lithium battery demand, pulling innovation across cells, packs and system design.
SUNHE ENERGY is advancing its silicon-carbon anode and high-voltage lithium cell platform, taking the technology from laboratory samples toward stable, repeatable mass production.
A lithium battery's cycle life is the number of full charge-discharge cycles it completes before its usable capacity drops, and it can be extended through proper charging and temperature control.
The 6 questions customers ask most about our lithium batteries, customization, MOQ and certifications
Founded in 2012, SUNHE ENERGY is a national high-tech enterprise specializing in the R&D, manufacturing and sales of polymer lithium-ion batteries, and a drafter of Guangdong lithium battery standards. We hold 36 valid patents, operate 2 production bases and serve 100+ customers worldwide.
Core product lines include semi-solid silicon-carbon batteries, 4.4V high-voltage batteries, 4.35V high-rate batteries, 5C fast-charging batteries, polymer gel batteries, ultra-thin batteries (≤0.4mm), ring batteries (min 2.0×8.0×9.0mm), wide-temperature batteries (-20℃~80℃), and packs such as 18650 and 9V, serving AI wearables, medical, consumer electronics and energy storage.
Semi-solid batteries combine high energy density with improved safety. SUNHE high-silicon semi-solid technology reaches up to 1000Wh/L, significantly extending device runtime and suiting power-dense smart wearables and consumer electronics.
Yes. We support full customization from cell selection, size and capacity to lead wires, terminals and protection circuits. MOQ and lead time depend on specifications and process — share your application, size and capacity needs for an accurate proposal and quotation.
Our batteries are certified to UL, CE, UN38.3, KC, PSE and RoHS, with 674 models certified to date. The factory is ISO 9001, ISO 14001 and ISO 45001 certified, with full traceability from cell sorting and spot welding to aging and shipment.
Use the Contact Us page, call +86-138-2322-1536, or email info@sunhetech.com. Our sales engineers respond promptly with a detailed plan and quotation.
Didn’t find your answer? Browse our technical FAQ or talk to an engineer — we reply within 24 hours.
Send your battery demand, drawings or parameters — our engineers reply with a detailed plan & quotation within 24 hours.