Hammond Group Inc.
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Chinese Market

Chinese battery additives.


The leader in energy storage for over 85 years

Founded in 1930, Hammond Group, Inc. (HGI) is a specialty chemical company that is advancing state of the art energy storage applications through proprietary battery chemistry.

HGI’s extensive experience and product portfolio allow us to serve a broad range of markets. We strive to identify emerging market trends and engineer products that can meet the needs of the future. HGI supports these emerging markets across the globe with manufacturing facilities in the United States, United Kingdom, and Malaysia.

HGI has been providing battery additives to Chinese manufacturers since 1998. In 2009 HGI expanded our Malaysian facility to better serve the Chinese market. In 2015 HGI completed their state-of-the-art Lead Acid Battery Laboratory at 3100 Michigan Street. This facility is the center for ongoing development of advanced battery & energy storage chemistry. 



3100 Michigan Street

Hammond, IN 46323



+1 (219) 314-1821




Battery Expander

Expander is a specialty additive  to  a battery’s negative active material to improve capacity, cold cranking performance, cycle life, and charge acceptance. Hammond offers over 120 expander formulations tailored for  specific applications:

  • Automotive Starting, Lighting and Ignition (SLI)
  • Motive Power/Traction
  • Stationary: Float and Off-grid Energy Storage
  • Golf Car, Floor Scrubber and other deep cycle applications
  • Motorcycle and E-Bike
  • Start-stop and Micro Hybrid Vehicles

See our Expander Application Guide to select the right expander for your application.


Tetrabasic Lead Sulfate

Hammond's tetrabasic lead sulfate (TTBLS), SureCure®, is added to a battery’s the positive active material where it acts as “seed crystals” to promote uniform TTBLS during paste mixing and plate curing. More uniform TTBLS results in stronger positive plates and increased cycle life. SureCure® allows for lower paste density and reduced material cost.

See our SureCure Application Guide to select the right product for your application.

Click this video link to see SureCure®'s function and benefits.


Battery Oxide

Battery Oxide is an essential building block of a battery. Hammond’s Oxide is specially processed for automotive or industrial applications. It is designed to enable high cranking power, excellent reserve capacity, and long life.  Battery Grade Red Lead Red Lead is commonly used in the positive plate to improve formation and initial capacity. Hammond offers red lead in various percentages as determined by the customer’s application.Product Resources


Electrolyte Additives

Sodium sulfate may be added to the electrolyte in AGM batteries to improve rechargeability after a deep discharge. Hammond offers high-purity sodium sulfate in both powdered and tablet forms.



Technical Assistance

Hammond’s charter is to advance the performance of lead-acid battery chemistry through our state-of-the-art research center staffed by a talented team of battery and material scientists. Hammond Group offers the full depth and breadth of our organization to assist you in overcoming technical challenges. We  leverage our expertise in materials research and performance additives development to provide customized solutions for  the current and next generation of advanced lead acid batteries. Our technical assistance programs allow customers to  augment their research efforts, reduce capital expenditure and fixed costs, and rapidly develop new products. 

Our active Technical Assistance Programs include battery manufacturers in the United States, Europe, China, Japan, India and Vietnam. Together, we are solving a variety of  technical challenges including acid stratification, charge acceptance, and high temperature performance. 

How can Hammond help you improve your battery performance? 


Material Research & Analysis

Our state-of-the-art lab features a full complement of equipment to analyze batteries and their modes of failure to help determine which additives can  best improve performance.

  • X-ray diffraction
  • BET surface area
  • UV-Vis spectroscopy
  • ICP
  • SEM

Cell Manufacture & Testing

We  use battery cell-based prototyping to quickly identify the most promising performance additives for a particular application. 

  • 200 cell-testing circuits
  • Capacity testing
  • Crank testing - Room temperature
  • Crank testing - Cold temperature
  • Water Consumption
  • Cycle Life
  • Charge Acceptance
  • On-site paste mixer and cell assembly

Battery Testing 

We perform battery verification and validation through industry-standard tests or customized algorithms. 

  • 13 position 25 amp, 18 volt unit
  • 16 position 50 amp, 18 volt unit
  • 18 position 400 amp, 18 volt unit
  • 1300 amp high-rate discharge unit
  • Environmental chamber
  • Temperature-controlled water baths
  • Autopsy & failure mode pathology


Let's Chat.

At Hammond Group Inc. customers come first. We strive to put forth quality products and partner with our customers for long term success. To see how our products and services can help your business succeed, please contact us!