Spectro Modular

Electrochemical Impedance Spectroscopy (EIS) opens a non-invasive way to test batteries. EIS-based characterization has been in use for decades to study aging effects in batteries with manual interpretation. Multi-model EIS now enables State-of-Health (SoH) assessment using Artificial Intelligence (AI).

Spectro™ Battery Rapid-tester

EIS technology used to come in a large cabinet rolling on wheels. We shrunk the unit into a hand-held device that talks a smartphone or tablet.
The Spectro Modular assesses battery SoH with multi-model EIS by displaying the results on a host.
Optional cloud analytics leads to fleet management and revealing of the remaining useful life (RUL) of batteries

  • Compact and robust design
  • Wireless connectivity with host devices or workshop maintenance systems
  • Tight integration with OEM and third party diagnostic applications via our API
  • Over the Air (OTA) Firmware upgrade & device configuration
  • Seamless Connectivity with OEM’s cloud/servers. No paper required
  • Expanded testing range for larger batteries: 55 to 300RC (27Ah to 150Ah)
  • Test Mode support for PDI, dealer warranty & aftermarket service drive/workshops
  • In-unit data storage: 1000 test results; cloud connectivity for larger storages.    
  • Battery runtime: 150 tests per charge 
  • Potential for other battery chemistries (e.g. Li-xxx and up to 60V) including liquids.

U.S. PATENT 6,778,913: Multiple model systems and methods for testing electrochemical systems.
U.S. PATENT 7,072,871: Fuzzy logic method and apparatus for battery state of health determination.
U.S. PATENT 10,302,709: Method to evaluate battery state-of-health determination using multi-factor normalization.


DESCRIPTION

 
Technology
  • Multi-model Electrochemical Impedance Spectroscopy (EIS)
  • Assesses CCA, Ah/Reserve Capacity and stat-of-charge (SoC) with pass/fail status.   
  • Provides battery State of Health (SoH) test in 60 seconds
  • Ability to measure batteries at low SoC. Reduces “Charge & Re-Test” requirements
  • Cloud connectivity provides trend analysis, and remaining useful life
Cadex Cloud API
  • Spectro Modular retrieves and uploads data and shows result on the host
  • Data is stored in secure database hosted on AWS
  • REST provides automated access
  • Transport Security – HTTPS
Cloud Connectivity
  • Central storage for battery model data that
  • AI examines aging effects and predicts Remaining Useful Life (RUL)
  • Data input and retrieval via REST API


Pattern Recognition



An EIS scan with the Spectro Modular allows comparing Nyquist plots against a “golden sample” from a known good battery. Deviation in Migration, Charge Transfer and Diffusion reveals unique battery characteristics.

Applications

  • Research Labs: Evaluates cathode and anode materials; compares additives.
  • Manufacturing: Checks batch consistency.
  • Quality Control: Verifies incoming batteries.
  • Environmental: Analyzes performance by temperatures, SoC and storage.
  • Stress Test: Observes capacity loss with abusive conditions; tracks aging.
  • Longevity: Checks cycling-induced wear.
  • Structural Integrity: Detects dendrites, lithium plating and mechanical anomalies.
  • Second Life: Verifies batteries for reuse.
Note: The Nyquist plot also examines liquids.


Battery Matrix

Modern battery rapid-testing shares similarities with face recognition in which a camera takes a multi-dimensional image to identify features and characteristics with artificial intelligence (AI) and machine learning.
Similarly, battery testing with EIS captures the “landscape” of a battery that leads to state-of-health (SoH) assessments with AI and machine learning. The battery landscape is expressed in a matrix serving as reference tables.
Creating a matrix requires scanning batteries of different SoH. Starter batteries use an automotive-tuned generic matrix while Li-ion and deep-cycle lead acid are more distinctive and need a model-specific matrix. Matrices will be stored in the Cadex Cloud for global use.
Creating a matrix involves scanning batteries of diverse SoH and measuring the capacity with charge/discharge cycles. The Data Acquisition Unit (DAU) automates the service.  DAU units are be made available by Cadex on request.


PRODUCT INQUIRY

The Spectro Modular is only available to Original Equipment Manufacturers (OEM) to seamlessly integrate into warranty and after-market programs. Product inquiries should be directed to the following Cadex Automotive office locations:

Cadex is continuously advancing Spectro™ in the form of improved battery diagnostics, broader test ranges, new battery types, and the distribution of test results. We are interested in your application and would be pleased to discuss your requirements.

SPECIFICATIONS

Application Non-invasive battery diagnostic device based on multi-model electrochemical impedance spectroscopy (EIS) with battery characterization known as matrix. The instrument is designed for automotive warranty services and aftermarket.
Model Model: Spectro Modular, Product SKU 11-500-0200-00
Market
  • Testing 12V flooded and AGM and EFB starter batteries with a generic matrix.
  • Testing 12–48V lithium-ion with model-specific matrix. (Available Q4 2022)
Operation Rechargeable internal battery, good for 250 tests and up to 12h continuous use
Capacity Classified; pass/fail threshold set to 40%. (Capacity entry by IEC and SAE norms)
CCA In percent; pass/fail threshold set to 50%.
Voltage Shown in 3-digit readout
Temperature Degree Celsius and Degree Fahrenheit; selectable
Messages
  • Good Battery
  • Good battery – Recharge
  • Replace Battery (Poor RC)
  • Replace Battery ( Poor CCA)
  • Replace Battery (Poor RC+CCA)
  • Replace Battery (High Resistance Detected)
  • Charge and Re-test
  • Re-test after self-discharge (Surface Charge Detected
Test Range
  • Capacity: 27–150Ah; Reserve Capacity (RC) 55–250 min.
  • CCA: 300–1200A CCA (IEC and SAE are interchangeable)
  • State-of-Charge in percent (%)
  • Build-in matrices (Matrices serve as reference tables)
  • Stores up to 1,000 test results
EIS Scan Excitation range: 16–2,048Hz; lower frequencies possible.
Test Time Under 30 seconds; 1 min to 0.2Hz; 2 min to 0.1Hz
Physical
  • Unit: D: 182mm (7.16“); W: 96mm (3.78“); H: 47mm (1.85“). Weight  430g net (0.94 lb.)
  • In transit case: D: 30.5mm (12”); W: 33mm (13”); H: 11.4mm (4.6”), Weight 1.46kg (3.2 lb.)
Port USB-C; also charges internal battery with a 110–240VAC, 50–60Hz AC power supply DB15 with 1 meter test cable (39,7”)
Battery Li-ion battery; 21700, 5Ah; good for 250 tests between charge.
Connectivity
  • Wi-Fi 802.11 b/g/n (up to 150Mbps at 2.4GHz)
  • BLE V4.2 (FCC, ISED, CE mark and Bluetooth QDID)
  • Cadex Link (Android & Windows Support)
  • Compliant with 3rd party Software application over API
Environment
  • Temperature: -10℃ to +45℃ (14°F to 113°F) Humidity: 10–80%
  • Short-Term (up to 30 days) at –20℃ to +30℃ (–4° to 86°F) Humidity: non-condensing
  • Long-Term (1-3 months +)  at –20℃ to +25℃ (–4° to 77°F) Humidity: non-condensing
Approval Tested and approved to comply with CSA/UL/CE standards. RoHS. REACH, RED,WEEE, ISTA 3A, IP52 and FCC Type A compliant
Warranty
  • Cadex warrants the device against defective materials and workmanship for a period of two (2) years from the original purchase date
  • The cable and clamp carries a one (1) year warranty.
Option Connectivity to Cadex Cloud. We customize the last mile with the Cadex Link.
Patents U.S. PATENTS:  6,778,913; 7,072,871; 10,302,709

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